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Building Component Catalogue with LOD levels

Version 4.0 / November 2017

Preface

The building component catalogue with the level of development specification is targeted at MT Højgaard's projects for internal use and for our partners. The catalogue has been used on many of our own construction and infrastructure projects, but also by external parties. The motivation for this catalogue is that it is often unclear what geometry needs to be provided at a given milestone. The catalogue is inspired by Level of Development (LOD) definitions developed by the American Institute of Architects (AIA). The purpose of the catalogue is:

· to help participants in construction projects define the geometry of models;

· to help project participants clarify and specify geometry and property deliverables for a given milestone;

· to help project participants and partners communicate the geometry of the individual building component for a given milestone;

· to provide a reference for contracts relating to building models. The catalogue may, however, be used by and be an inspiration to the construction industry as long as the source is acknowledged. Copying or reproduction of this catalogue (or any part thereof) is not permitted without prior written agreement with MT Højgaard, [email protected]. This Building Component Catalogue is also published in Danish, Norwegian, German and Icelandic and will be updated on a regular basis. We welcome comments and suggestions for improvements at [email protected].

2 MT HØJGAARD A/S - BUILDING COMPONENT CATALOGUE

mailto:[email protected]

mailto:[email protected]

Reading instructions

This Building Component Catalogue describes how MT Højgaard defines the levels (LODs, Levels of Development) for the geometry of selected building components. For each building component, the levels of development LOD 100 - 400 are specified and described using an illustration showing the recommended geometry and a descriptive text. LODs are ascending, where LOD 100 represents the lowest level and LOD 400 represents the highest level. The Building Component Catalogue is a reference book that can be used together with deliverable specifications for geometry (LOD) and properties (LOI), which are both prepared and tailored to fit each project.

· The Model Progression Specification for geometry (LOD) specifies the geometry of building components in relation to e.g. conceptual design, preliminary design and main project milestones.

· The Model Progression Specification for properties (LOI) specifies the properties of building components in relation to e.g. conceptual design, preliminary design and main project milestones.


Table of Contents


Preface

Reading instructions

Basic definitions of Levels of Development (LODs)

Civil works

Architect

Structures

Service installations

Contact

Basic Definitions of Levels of Development (LODs)


Basic definitions of Levels of Development (LODs): LOD 100 and LOD 200

LOD 100

Definition Object (or structure) is graphically represented in the model with a symbol (e.g. a line or a surface) or generically (i.e. dimensions and quantities are not defined). This represents the overall geometric expression of the object and the relation to its surroundings.

Possible use Overall energy considerations, price calculation on m2 or m3 (e.g. a car park for 300 cars), risk analyses to determine the geometric design and layout of the construction site, including site huts, access roads and crane location.

Responsibility Typically the architect.

LOD 200 Definition Object (or structure) is graphically represented as a generic object with approximate quantities, sizes, dimensions, location and orientation. The overall function of the object is described. At this point, the model will be divided into a number of discipline models.

Possible use Scheduling, safety planning, calculation based on areas (floors, façades, roofs, and functional areas), product preparation, risk analyses, clash detection and energy calculations.

Responsibility Typically the architect and consulting engineers.


Basic definitions of Levels of Development (LODs): LOD 300 and LOD 350

LOD 300 Definition Object (or structure) is graphically represented as a specific object with quantities, sizes, dimensions, location and orientation. The model describes the overall function, performance and material of the objects. Possible use Production scheduling, calculation based on geometric or functional building components (m2 of ground floor slab, m2 of curtain wall, number of skylights, running meter of railing), lists of parts and clash detection.


LOD 350 Definition The object (or structure) is graphically represented as an object with quantities, sizes, dimensions, location and orientation. The objects are detailed in assemblies with other building components. Possible use Production scheduling, calculation based on production parts, components and production material (m3 of concrete class, level of reinforcement, formwork, embedded parts), lists of parts, clash detection (coordination of design and system deliverables).



Basic definitions of Levels of Development (LODs): LOD 400

LOD 400 Definition The object (or structure) is graphically represented, possibly as a supplier-specific object with quantities, sizes, dimensions, location and orientation. The objects are detailed for manufacture, assembly and prefabrication and contain also installation information.

Possible use Prefabrication, lists of parts and the specific assembly or installation planning.

Responsibility Typically the subcontractor or system supplier of prefabrication.


Civil works


Terrain

Levelling/gradings

Foundation excavation

Pipework excavation

Road and railway

Road and railway equipment

Dam

Existing pipework in terrain

Drainage

Table of contents

Civil works – List of building components


Terrain

LOD 100 Existing terrain is displayed as a 2D surface with a reference point (elevation) which is average for the area.

LOD 200 Existing terrain is displayed as a 3D surface, based on manual points measured by a total station or a rover. Points are measured in height/depth and for each 10/20 meters.

LOD 300 Existing terrain is displayed as a 3D surface created by a network of measured points from e.g. an overflight or a laser scan.

LOD 350 Existing terrain is displayed as a 3D surface created by a network of measured points from e.g. an overflight or a laser scan. Lower layers of soil such as clay, chalk, sand etc. are displayed as independent 3D surfaces with data from measured drill samples.

LOD 400 As LOD 350.


Table of contents Civil works – List of building components

Levelling/gradings

LOD 100 2D levelling surface.

LOD 200 Levelling with vertical connection to other surface.

LOD 300 Levelling sloping down to other surface.

LOD 350 Accurate levelling sloping down to other surface.

LOD 400 As LOD 350.



Excavation for foundation

LOD 100 Rough excavation as a surface to a fixed level.

LOD 200 Rough excavation as a surface to a fixed level with connection to existing terrain.

LOD 300 Foundation excavation as a 3D surface with vertical walls.

LOD 350 Foundation excavation with sloped walls.

LOD 400 As LOD 350.



Pipework excavation

LOD 100 Rough excavation along line.

LOD 200 Rough excavation along 3D object.

LOD 300 Pipework excavation with a 3D surface as excavation surface.

LOD 350 Pipework excavation with excavation surface connected to other surface.

LOD 400 As LOD 350.



Road and railway

LOD 100 Centreline of the structure (2D).

LOD 200 2D surface specifying the structure.

LOD 300 Top surface (3D) with connection to terrain.

LOD 350 Top and datum surfaces sloping down to terrain.

LOD 400 Kerb stones, road and railway structure with layouts and ditches sloping down to terrain.



Road and railway equipment

LOD 100 Specification of the location of road and railway equipment.

LOD 200 Specification, as a volume, of the location of road and railway equipment.

LOD 300 3D geometry of road and railway equipment.

LOD 350 3D geometry of road and railway equipment with invisible/hidden geometry such as foundations.

LOD 400 Manufacturer-specific details are modeled.



Dam

LOD 100 Centreline of dam.

LOD 200 Location of dam.

LOD 300 Top surface with connection to the existing terrain.

LOD 350 Dam structure including layer structure.

LOD 400 Dam structure including layer structure and equipment.



Existing pipework in terrain

LOD 100 Approximate location of pipes as 2D lines.

LOD 200 Approximate location of pipes as 3D lines.

LOD 300 Approximate location, including slope and size of main and service pipes.

LOD 350 Actual dimensions, location and design. Materials, capacity and systems must be represented in the model.

LOD 400 Accurate geometry, including thickness of materials and pipe lengths. Valve location, materials, capacity and systems must be specified in the model.



Drainage

LOD 100 Approximate location of pipes as lines.

LOD 200 Approximate location and size of the main and service pipes.

LOD 300 Approximate location and size of main and service pipelines with joints.

LOD 350 Actual dimensions, location and design.

LOD 400 Accurate geometry, including thickness of materials and pipe lengths. Materials, capacity and systems must be represented in the model.



Architect



Architect – List of building components

Room

Roof

Lightweight façade

Heavy façade

Lightweight internal wall

Floor

Ceiling

Elevator

Door

Window

Table of contents

Room

LOD 100 Physical room/space partitioning by function and connections.

LOD 200 The room contains: glass panels/windows, doors/hatches, staircases, landings, fixtures and fittings, sanitary

appliances and suspended ceiling.

LOD 300 Suspended ceilings must include ceiling panels and floors with thickness.

LOD 350 As LOD 300.

LOD 400 As LOD 300.


Table of contents Architect – list of building components

Roof

LOD 100 The location of the roof is represented either by the external surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 Size, exact shape and location and approximate location of openings and holes.

LOD 300 Roof construction in layers (e.g. roofing felt, insulation and concrete) with external dimensions. The model specifies openings for windows, doors and large service penetrations.

LOD 350 Depending on the type, the roof contains reinforcement. The different layers are modeled. Opening dimensions and locations are accurate.

LOD 400 All assembly components and details are modeled. It includes rough and planed laths and reinforcement details.



Lightweight façade

LOD 100 The location of the façade is represented either by the external surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 The approximate dimensions, shape and location of the façade, including size, orientation of openings, are modeled.

LOD 300 The structure of the wall in layers and exact external dimensions. Openings for windows, doors and large pipes/cables are specified.

LOD 350 Buildable detailed design of the façade. The different layers are modeled. Dimensions and location of openings are accurate.

LOD 400 All assembly components and details are modeled, including rough and planed laths and brackets.



Heavy façade

LOD 100 The location of the outer wall is represented either by the external surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry.

LOD 200 The approximate dimensions, shape and location of the façade, including approximate location, size and orientation of openings, are modeled.

LOD 300 The structure of the wall in layers (e.g. curtain wall, insulation and concrete), including exact external dimensions. Openings for windows, doors and large pipes/cables are specified.

LOD 350 Buildable detailed construction of the wall. The wall contains reinforcement. The different layers are modeled. Dimensions and location of openings are accurate.

LOD 400 All assembly components and details are modeled, including reinforcement details.



Lightweight internal wall

LOD 100 The location of the internal wall is represented either by a surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry.

LOD 200 The approximate dimensions, shape and location of the wall, including approximate location, size and orientation of openings and holes.

LOD 300 The structure of the wall in layers (e.g. insulation and plasterboards) with exact dimensions. Openings for windows, doors and large service penetrations are accurate and specified.

LOD 350 Buildable detailed structure of wall. Depending on the type, the wall contains reinforcement. The different layers are modeled. Dimensions and location of openings are accurate.

LOD 400 All assembly components and details are modeled. This includes rough and planed laths and e.g. plasterboards or reinforcement details and connections.



Floor

LOD 100 The location of the floor is represented either by a surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry.

LOD 200 The size, exact shape and location of the floor, including approximate location, size and orientation of openings and holes, are modeled.

LOD 300 The structure of the floor in layers with exact external dimensions. Openings for large service penetrations are specified.

LOD 350 Buildable detailed structure of the floor. Depending on type, the floor contains reinforcement. The different layers are modeled. Dimensions and location of openings are accurate.

LOD 400 All assembly components and details are modeled. This includes any internal supporting elements such as battens and joists.



Ceiling

LOD 100 The location of the ceiling is represented either by the surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry.

LOD 200 The ceiling is represented by a placeholder with approximate geometry which, for example, shows a floor deck with the height required for any service installations, etc. Approximate location, size and orientation of openings / holes (shafts, staircases, etc.) are specified.

LOD 300 Construction of suspended ceiling in layers such as insulation and plaster, including approximate openings and details, clarified. Box-outs for service installations and lighting fixtures are shown in the tiled ceiling system.

LOD 350 The ceiling contains dimensions of ceiling tiles and location of the suspension system. Box-outs for service installations and lighting fixtures are accurate.

LOD 400 Manufacturer-specific details of the ceiling are modeled. Details, connections and profiles are modeled.


Table of Contents Architect – list of building

components

Elevator

LOD 100 The location of the elevator shaft is represented either by the surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 The elevator shaft is divided into the shaft itself and the necessary pit and top of the elevator shaft.

LOD 300 The exact dimensions of the elevator shaft are known. Location of doors and service hatches are specified.

LOD 350 The elevator car is modeled. Doors and external fittings are modeled.

LOD 400 The manufacturer-specific details of the elevator are modeled. Details, connections and profiles are modeled in 3D.


Table of Contents Architect – list of building

components

Door

LOD 100 The location of the door is represented either by surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 The model distinguishes between the area of the door frame and the area of the door leaf. Approximate dimensions.

LOD 300 Exact dimensions of door frame and door leaf are modeled.

LOD 350 The door also includes door handle and door knob which are modeled.

LOD 400 The manufacturer-specific details of the door are modeled. Details, connections and profiles are modeled.



Window

LOD 100 The location of the window is represented either by surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry.

LOD 200 The model distinguishes between the area of the window frame and the area of the window. Approximate dimensions.

LOD 300 Exact dimensions of window frame and window sash are modeled.

LOD 350 Windows also include window handle and grip which are modeled.

LOD 400 The manufacturer-specific details of the window are modeled. Details, connections and profiles are modeled.



Structures



Structures – List of building components

Foundation, concrete element

Foundation, in situ

Terrain slab, in situ

Suspended floor slab, element

Suspended floor slab, in situ

Lightweight floor slab, steel

Concrete beam, element

Concrete beam, in situ

Steel beam

Concrete wall, element

Concrete wall, in situ

Concrete column, element

Concrete column, in situ

Steel column

Frame

Staircases, in situ Staircases, element

Staircases, steel

Table of contents

Foundation, concrete element

LOD 100 The location of the foundation is represented either by the external surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry. The placeholder may be a base plate that shows the entire foundation.

LOD 200 The foundation is represented as a generic foundation object with an approximate shape specifying quantity, size, shape, location and orientation.

LOD 300 The foundation has real quantities, dimensions, shape, location and orientation. Stepped flashing and slopes, including holes/box-outs, are modeled. Reinforcement and building component and connection details clarified, but not yet represented in the model.

LOD 350 The foundation contains box-outs/holes, joints, including casting joints, with real quantities, dimensions, shape, location and orientation. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. The foundation contains chamfers, location of embedded parts and main reinforcements as represented in the model, including butts and miters.


Table of contents Structures – list of building components

Foundation, in situ

LOD 100 The location of the foundation is represented either by the external surface geometry (2D plane) and shape or by a geometric placeholder with approximate geometry. The placeholder may be a base plate that shows the entire foundation.

LOD 200 The foundation is represented as a generic foundation object with an approximate shape specifying quantity, size, shape, location and orientation.

LOD 300 The foundation has real quantities, dimensions, shape, location and orientation. Slopes and stepped flashings with plain concrete and box-outs/holes are shown. Reinforcement and building details clarified, but not modeled.

LOD 350 The foundation contains box-outs/holes, joints, including casting joints, with real quantities, dimensions, shape, location and orientation. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. The foundation contains embedded parts and reinforcement as represented in the model, including butts and miters.



Terrain slab, in situ

LOD 100 The location of the floor slab is represented either by external surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 The floor slab is represented as a generic slab object with an approximate design in terms of quantity, size, shape, location and orientation.

LOD 300 The floor slab has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø500 are represented in the model. Reinforcement and building details clarified, but not modeled.

LOD 350 Reinforcement is represented in the model (perhaps only in part). Box-outs/holes for service installations and the exact location and dimensions of embedded parts are modeled. Box-outs/holes >ø150 are represented in the model. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. Embedded parts and reinforcement are represented in the model, including butts and miters. The model includes insulation below the floor slab.



Suspended floor slab, element



LOD 300 The floor slab has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø500 are shown in the geometry. Reinforcement and building details clarified, but not modeled.

LOD 350 The model is divided for prefabrication. Reinforcement is represented in the model (perhaps only in part). Box-outs/holes >ø150 for service installations and the exact location and dimensions of embedded parts are specified. Moreover, insulation, trimmers and flat steel are modeled.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, and embedded parts, including butts and miters, are modeled. The model also shows joint reinforcement.



Suspended floor slab, in situ



LOD 300 The floor slab has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø500 are shown in the geometry. Trimmers and flat steel are modeled. Reinforcement and building details clarified, but not modeled.

LOD 350 Reinforcement is represented in the model (perhaps only in part). Box-outs/holes for installations and the exact location and dimensions of embedded parts are specified. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, and embedded parts, including butts and miters, are modeled.



Lightweight floor slab, steel



LOD 300 The floor slab has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø500 are shown in the geometry. Trimmers and flat steel are modeled. Reinforcement and building details clarified, but not modeled.

LOD 350 Reinforcement is represented in the model (perhaps only in part). Box-outs/holes for service installations and the exact location and dimensions of embedded parts are specified. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, and embedded parts are modeled.



Concrete beam, element

LOD 100 The location of the beam is represented either by the external surface geometry and shape or as a geometric placeholder with approximate geometry.

LOD 200 The beam is represented as a generic beam object with approximate design in terms of quantities, size, shape, location and orientation.

LOD 300 The beam has real quantities, dimensions and shape. The model includes location and orientation. Stepped flashing and slopes and box-outs/holes >ø200 are shown in the geometry. Reinforcement and building details clarified, but not modeled.

LOD 350 The beam is divided for prefabrication. The beam model includes chamfers, the location of embedded parts and joints, including casting joints. Box-outs/holes >ø100 are shown in the model. Moreover, insulation is modeled.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, including butts and miters.



Concrete Beam, in situ

LOD 100 The position of the beam is represented either by the external surface geometry and shape or as a geometric placeholder with approximate geometry.

LOD 200 The beam is represented as a generic beam object with approximate design in terms of quantities, size, shape, location and orientation.

LOD 300 The beam has real quantities, dimensions and shape. The model includes location and orientation. Stepped flashing and slopes and box-outs/holes >ø200 are shown in the geometry. Reinforcement and building details clarified, but not modeled.

LOD 350 The beam includes chamfers and the location of embedded parts and joints, including casting joints. Box-outs/holes >ø100 are shown in the model. Moreover, insulation and holes for joint reinforcement are modeled.

LOD 400 Manufacturer-specific details are modeled. Reinforcement, including joint reinforcement, is detailed, including butts and miters.



Steel Beam

LOD 100 The position of the beam is represented either by the external surface geometry and shape or as a geometric placeholder with approximate geometry.

LOD 200 The beam is represented as a generic beam object with approximate design in terms of quantities, size and shape. The model includes location and orientation.

LOD 300 The beam has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø100 for service installations are modeled. Building details clarified, but not modeled.

LOD 350 The beam is divided for prefabrication. All box-outs/holes are modeled. Assembly details clarified.

LOD 400 Manufacturer-specific details are modeled. The beam includes bolts and bolt holes, end plates, mounting hardware etc. as well as web stiffening and fire insulation.



Concrete wall, element

LOD 100 The position of the wall is represented either by a surface or by a geometric placeholder with approximate geometry.

LOD 200 The wall is represented as a generic object with approximate design in terms of quantity, size, shape, location and orientation.

LOD 300 The wall has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø200 for beams, doors and windows, including main services ducts, are represented in the model. Building details clarified, but not modeled.

LOD 350 The model is divided for prefabrication. Box-outs/holes for service installations >ø100 and the exact locations and dimensions of embedded parts are modeled. Moreover, the model includes insulation, consoles, skirting and corrugated pipes.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, including butts and mitres.



Concrete Wall, in situ

LOD 100 The position of the wall is represented either by a surface or by a geometric placeholder with approximate geometry.

LOD 200 The wall is represented as a generic wall object with approximate design in terms of quantity, size, shape, location and orientation.

LOD 300 The wall has real quantities, dimensions and shape. The model includes location and orientation. Box-outs/holes >ø350 for beams, doors and windows, including main services ducts, are represented in the model. Building details clarified.

LOD 350 Box-outs/holes for service installations >ø100 and the exact location and dimensions of embedded parts are modeled. Moreover, the model includes insulation, consoles, skirting and corrugated pipes.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed, including butts and miters.



Concrete column, element

LOD 100 The position of the column is represented by either a line or by a geometric placeholder with approximate geometry.

LOD 200 The column is represented as a generic column object with approximate quantities, size and shape. The model includes location and orientation.

LOD 300 Real quantities, size and shape, including holes, location and orientation, are represented in the model. Consoles are included in the geometry. Building details clarified, but not modeled.

LOD 350 The column contains box-outs/holes with exact dimensions, insulation and location. Depending on type: chamfers, embedded parts, joints, including construction joints, end plates, mounting hardware, stiffening plates, reinforcement etc. are modeled.

LOD 400 Manufacturer-specific details are modeled. Chamfers, connections and reinforcement, including butts and miters, are detailed in the model. Embedded parts are also modeled.



Concrete Column, in situ

LOD 100 The position of the column is represented by either a line or by a geometric placeholder with approximate geometry.

LOD 200 The column is represented as a generic column object with approximate quantities, size and shape. The model includes location and orientation.

LOD 300 Real quantities, size and shape, including holes, location and orientation, are represented in the model. Consoles are included in the geometry. Building details clarified, but not modeled.

LOD 350 The column contains box-outs with exact dimensions, insulation and location. Depending on type: chamfers, embedded parts, joints, including construction joints, end plates, mounting hardware, stiffening plates, reinforcement etc. are modeled.

LOD 400 Manufacturer-specific details are modeled. Chamfers, connections and reinforcement, including butts and miters, are detailed in the model. Embedded parts are also modeled.



Steel Column

LOD 100 The position of the column is represented either by the external surface geometry and shape or by a geometric placeholder with approximate geometry.

LOD 200 The column is represented as a generic column object with approximate design in terms of quantities, size and shape. The model includes location and orientation.

LOD 300 The column has real quantities, dimensions and shape, and the model includes location and orientation. Box-outs/holes for service installations are modeled. Building details clarified, but not modeled.

LOD 350 The column is divided for prefabrication. Box-outs/holes for service installations are modeled. The column includes end plates and hardware as well as web stiffening and fire insulation. Assembly details and holes for joint reinforcement clarified.

LOD 400 Manufacturer-specific details are modeled. The beam includes bolts and bolt holes, end plates, mounting hardware etc. as well as web stiffening and fire insulation.



Frame

LOD 100 The position of the frame is represented either by a line or by a geometric placeholder with approximate geometry.

LOD 200 The frame is represented as a generic frame object with approximate quantities, size and shape. The model includes location and orientation.

LOD 300 The frame is represented as a generic object of real quantities, size and shape. The model includes location and orientation. Consoles are included in the geometry. Building details clarified.

LOD 350 The frame contains box-outs with exact dimensions and location, including fire protection. Depending on type: chamfers, location of embedded parts, joints, including construction joints, end plates, mounting hardware, stiffening plates, etc. are included in the model. Materials for assembly components are shown at connections where used.

LOD 400 Manufacturer-specific details are modeled. Reinforcement is detailed in the model, and embedded parts are modeled.



Staircases, in situ

LOD 100 The position of the staircase is represented by a geometric placeholder with approximate geometry.

LOD 200 The staircase is represented by a generic staircase object with a simplified specification of the location of stair runs and landings.

LOD 300 The staircase is modeled specifying the exact location of stair landings and steps, including large supporting structures and specifying secondary load-bearing elements. Type of safety rail has been defined.

LOD 350 The staircase is divided for prefabrication. All box-outs/holes for service installations are modeled.

LOD 400 Manufacturer-specific details are modeled, and all elements of the staircase are specified.



Staircases, element



LOD 300 The staircase is modeled specifying the exact location of stair steps and landings, including large supporting structures. Type of safety rail has been defined.

LOD 350 The staircase is divided for prefabrication. All box-outs/holes for service installations are modeled, and secondary load-bearing elements are specified.




Staircases, steel



LOD 300 The staircase is modeled specifying the exact location of stair steps and landings, including major supporting structures. Type of safety rail has been defined.

LOD 350 The staircase is divided for prefabrication. All box-outs/holes for service installations are modeled, and secondary load-bearing elements are specified.




Installations



Installations – List of building components

Utility system (control room)

Piped services, routing

Piped services, components

Ventilation, routing

Ventilation, components

Electrical installations, routing

Electrical installations, components

Low voltage

Table of contents

Utility system (control room)

LOD 100 The main services ducts are represented by a geometric placeholder with approximate geometry or as schematic diagrams. Utility systems represent: cooling plant, heating plant, sprinkler plant, ventilation system control room, distributions center, main control panels and switchboards, incl. service and repair agreements.

LOD 200 Approximate location and size of the main and service pipes. Approximate space requirements for access must be represented in the model. The model includes approximate location of exchangers, boilers, pressure expansion tanks, pumps, tanks etc.

LOD 300 Actual geometry, design and location of ducts, including access required for suspension, including type, supports, etc. Insulation is modeled. Connections and unit types (counterflow, rotary or plate heat exchanger) are modeled.

LOD 350 Detailed geometry with actual sizes, location, design, access requirement for service installations, including service and repair agreements and suspensions and supports.

LOD 400 Supplier-specific details are modeled.


Table of contents Service installations – list of building components

Piped services, routing

LOD 100 The main services ducts are represented by a geometric placeholder with approximate geometry or as schematic diagrams. Perhaps modeled as common volume objects for several types of service installations.

LOD 200 Generic lay-out with approximate location and size of main and service pipes. Approximate space requirements (shafts) and access requirements for service installations are represented in the model. Specification of service penetrations in walls and floor slabs (fire and acoustic sealants).

LOD 300 The model specifies actual dimensions, thickness, location and design of pipes, including bends and required slope. Specification of free space, space requirements and clearances for access is incorporated in the model. Ducts include wire insulation. Systems for the respective types of service installations are connected to piping.

LOD 350 Detailed geometry, with actual sizes, location and design, including fittings, suspension, bearings and supporting structures, are modeled.




Piped services, components

LOD 100 Schematic diagrams illustrating service installation principles.

LOD 200 Components are represented by a geometric placeholder with approximate geometry and location or specified as diagrams showing overall space requirements.

LOD 300 Components are modeled with approximate location and dimensions and orientation. Components may be pumps, clean-out doors, valves, radiators, sanitary installations, sprinkler heads, fittings, multiboxes, etc.

LOD 350 The model includes components in actual dimensions and specifies final location and orientation. All components, including free space requirements and clearances, are included in the model.




Ventilation, routing


LOD 200 Generic lay-out with approximate location and size of main and service pipes. Approximate space requirements (shafts) and access requirements for service installations are represented in the model. Specification of service penetrations in walls and floor slabs (fire and acoustic sealants).

LOD 300 The model specifies actual dimensions, location and design of pipes, including bends. Systems include insulation. Specification of free space, space requirements and clearances for access is incorporated in the model. Location of service penetrations in walls and floor slabs (fire and acoustic sealants) is final. Systems for respective types of service installations are connected to piping.

LOD 350 Detailed geometry, with actual sizes, location and design, including dampers and fittings. Suspension, bearings and supporting structures are modeled.




Ventilation, components



LOD 300 Components are modeled with approximate location and dimensions and orientation. Components may be: dampers, hardware, silencers, fittings.





Electrical installations, routing


LOD 200 Generic lay-out with approximate location and size of main and service pipes. Main services ducts, control or circuit breaker panels with approximate dimensions, location and design. Approximate space requirements for service access and clearances.

LOD 300 The model specifies actual dimensions, location and design of ducts, including bends. Specification of free space, space requirements and clearances for access is incorporated in the model. Location of service penetrations in walls and floor slabs (fire and acoustic sealants) is final. Location of visible supplementary ducts.

LOD 350 Detailed geometry, with actual sizes, location and design, including dampers and fittings. Suspension, bearings and supporting structures are modeled.




Electrical installations, components



LOD 300 Components are modeled with approximate location and dimensions and orientation. Components may be control or circuit breaker panels, low voltage components, sockets and terminal boxes for wall flush mounting and conduit ducts in concrete elements.





Low voltage (CTS & IT and data communication, security, personal safety, access security)

LOD 100 Approximate space requirements for service access of boards / panels, including clearances. represented by a placeholder.

LOD 200 Low voltage components in the ceiling is represented in the model. Control or circuit breaker panels are specified (control rooms and shafts) space requirements for access to panels, etc.

LOD 300 All low voltage components are modeled. The location and size are specified med exact dimensions in the model.

LOD 350 All low voltage components are modeled, both in the ceilings, walls and floors. The location and size are specified with exact dimensions in the model.

LOD 400 Components are manufacturer-specific.



Version 4.0 / November 2017 BUILDING COMPONENT CATALOGUE

Knud Højgaards Vej 7 DK-2860 Søborg +45 70122400 [email protected] http://mth.dk/


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