A guide to where the information belongs within the drawing set

This chapter is a detailed listing of the items we use to describe a building.

The BVN Alphabet breaks the building into drawing groups. Each drawing group of the alphabet contains certain types of information, and is grouped either by scale (1:100, 1:50, etc.), type (elevation, section, etc.), location (core, auditorium, etc.), element (stair, lift, etc.), or by any combination of the criteria best suited for the purpose of describing the building.

The drawing scales assigned to the letters of the BVN Alphabet are prescriptive. If a portion of the drawing (e.g. at 1:100) becomes graphically too heavy due to small rooms and the required amount of description, draw an ‘enlarged area reference box’, do not show any description within the box at 1:100, and show description items on a 1:50 detail drawing.

A - Introductory documents

A
Introductory documents
Cover sheet
  • Project name
  • BVN logo, Client’s logo
  • ‘Pretty picture’ - 3D external view or simple rendering of the building
Design intent
  • ‘Pretty picture’ plans, layout and furniture - linework only, no codes or descriptions
Legend sheet
  • Drawing list
    • (Drawing numbers and drawing titles only)
  • Key to symbols
  • Key to common graphics
  • Listing of all materials, systems and finishes codes, linked to specification clause
Site plan 1:500
(overall plan including access roads and context)
  • Road names
  • Site access points
Building location 1:200
  • Grid system setting-out showing North and East on key grid intersections

B - Floor and roof plans

B
Floor and roof plans
General arrangements floor plans 1:100
  • Grid lines
  • Boundary line - at ground level only
  • Room names and room numbers
  • Finished floor level (FFL) indication
  • Slab penetrations/voids graphic indication
  • Change of level indicators
  • Partition types
  • Partition critical dimensions and setting-out
  • Plan setting-out of the wayfinding signage elements
  • Door numbers
  • Doors horizontal dimensional setting-out - offsets from grid lines and to critical side of the door frame only
  • Windows and external doors horizontal dimensional setting-out - offsets from grid lines only
    • (See C and K series for windows description)
  • Joinery codes
    • (If showing joinery at 1:100 makes drawing graphically heavy, do not show here. Create a 1:100 subset of general arrangement joinery drawings in L series)
  • Wayfinding signage - free standing and wall hung; show codes and setting-out dimensions
  • Stair numbers, lift numbers, escalator numbers
  • ‘Enlarged area boxes’ referring to 1:50 enlarged plans in B series if required
    • (Do not show any description inside the box at 1:100 scale.
    • Only applicable if an area of floor plan becomes graphically heavy at 1:100)
  • Main section references to 1:100 sections in D series drawings
  • External elevation references to 1:100 elevations in C series drawings
  • Ramp falls
  • Change/delineation between finishes
  • Graphical differentiation between the existing structure and the new build
  • Graphical differentiation between concrete and the other types of partition
  • Architectural metalwork systems codes
    • (If showing metalwork at 1:100 makes drawing graphically heavy, do not show here, create a 1:100 subset of general arrangement metalwork drawings in N series)
General arrangements roof plans 1:100
  • Grid lines
  • Ridge/parapet levels
  • Roofing systems, material and finishes codes
  • Rain water outlets and similar hydraulic systems codes
  • Roof mounted mechanical exhaust systems codes
  • Ratio or percentage of roof falls
  • Steps/change of level indicators
  • Catwalks/access systems/roof maintenance tracks/ladders/metalwork/ abseiling anchor rails and similar items codes
  • Architectural metalwork systems codes
  • Fall arrest systems codes
  • Main section references to 1:100 sections in D series drawings
  • External elevation references to 1:100 elevations in C series drawings
  • Critical dimensions and setting-out
  • Graphical differentiation between the existing structure and the new build

C - External elevations

C
External elevations
External elevations 1:100
  • Grid lines
  • Finished floor level benchmarks
  • External wall systems nomination using materials, systems and finishes codes
  • Window dimensions horizontal and vertical
  • Windows vertical setting-out - offsets from finished floor level
    • (Horizontal setting-out offsets from grids is already done in B series)
  • External doors vertical setting-out - offsets from finished floor level
    • (Horizontal setting-out offsets from grids is already done in B series.
    • External door hardware is described in J series door schedule)
  • Glazing codes
  • Openable windows indication
  • ‘Enlarged area boxes’ referring to 1:50 elevations in C series
  • Section references
  • Graphical differentiation between existing structure and new build
  • Movement/deflection joints
Detailed set-out elevations, with associated plans and sections 1:50
Nested arrangement of elevation, associated plan(s) and section(s) at 1:50, showing typical and special conditions of the façade.
Includes cladding, windows, curtain walling, shopfronts, roofing.
Shows typical configurations and composite interface with roof, ceilings, floors and internal partitions.
  • Grid lines
  • Finished floor level benchmarks
  • External wall systems, materials and finishes codes
    • (No internal finishes description - all internal finishes are documented in F series)
  • Section symbols referring to 1:5 plan and section details in K series
  • ‘Enlarged area boxes’ referring to 1:5 plan details in K series
  • Openable windows indication
  • Movement/deflection joints

D - Sections

D
Sections
Sections 1:100
  • Grid lines
  • Finished floor level benchmarks
  • Room names
    • (Indicate major spaces only - the purpose of showing the room names is to aid the orientation)
  • Main section references to other 1:100 sections in D series drawings
  • ‘Enlarged area boxes’ referring to 1:50 sections in C series
  • Section symbols referring to 1:50 sections in C series
  • Section symbols referring to 1:5 plan and section details in K series
    • (If referencing to 1:5 detail without intermediate stop at 1:50 scale)
  • Elevation symbols referring to 1:100 elevations in C series drawings
  • Graphical differentiation between existing structure and new build

E - Reflected ceiling plans

E
Reflected ceiling plans

Reflected ceiling plans 1:100

Show:

  • Doors, only if full height
  • Full height joinery
  • Blinds, curtains, projectors and similar ceiling mounted items
  • All visible services - light fittings, sprinklers, air supply and exhaust smoke detectors, etc.
  • Ceiling mounted signage elements
  • Grid lines
  • Room names, room numbers and finished ceiling levels (FCL)
  • Access panels
  • Change of level indicators
  • Systems and materials codes (No finishes codes here, they are included in F series)
  • Section references to K series interface details
  • ‘Enlarged area boxes’ referring to G series 1:50 reflected ceiling plans.
    • (If a portion of the drawing at 1:100 becomes graphically too heavy due to small rooms and the required amount of description, draw an ‘enlarged area reference box’, do not show any description within the box at 1:100, and show description items on a 1:50 detail drawing.)
  • Setting-out points
  • Setting-out dimensions

F - Floor, wall and ceiling finishes

F
Floor, wall and ceiling finishes

Floor, wall and ceiling finishes

(Room schedule scenario)

Simple description of finishes by coding the floor, wall and ceiling substrate materials and finishes

Room schedule spreadsheet list every space, identified by the name and number.

The information is identical with the room names and room numbers shown in the plans.

The room schedule presents a comprehensive list of spaces which constitute the project.

  • Make reference to G series
    • (Materials and finishes codes allocated to the rooms in room schedule spreadsheet sufficiently describe substrate and finishes in majority of cases.
    • For more complex internal spaces (e.g. lift lobby, auditorium), instead of trying to code it, draw the space at 1:50 scale in G series and write a note in schedule ‘FOR DETAILS REFER TO DRAWING AR-I-**-**’)

Floor finishes plans

(Graphic representation scenario) 1:100

As a second preference, in the case where the majority of the floor finishes is too complex to schedule, we resort to documenting it through graphic representation.

This approach creates another subset of 1:100 plans in the F series, used exclusively to identify floor finishes.

  • Grid lines
  • Room names and room numbers
  • Change/delineation between finishes
  • Floor finishes codes
  • Stair numbers, lift numbers, escalator numbers
  • Section reference symbols referring to K series interface details

Wall protection plans

(Graphic representation scenario) 1:100

As a second preference, in the case where the quantity and variation of wall protection systems (e.g. in a health care project) would make F series room schedule too complex to schedule, we resort to documenting it through graphic representation.

This approach creates another subset of 1:100 plans in the F series, used to graphically represent and identify wall protection systems.

  • Grid lines
  • Room names and room numbers
  • Wall protection systems codes
  • Stair numbers, lift numbers, escalator numbers
  • Section reference symbols referring to K series interface details

G - Internal spaces

G
Internal spaces

Internal spaces - plans, reflected ceiling plans and internal elevations 1:50

(Rooms which can not be scheduled in the F series room schedule e.g. lobby, foyer, atrium, banquet room, reception, meeting room, staff station, auditorium, labour birth recovery and postpartum room, etc.)

  • Grid lines
  • Room names, room numbers and finished floor levels (FFL)
  • Description using systems, materials and finishes codes
  • Joinery nomination and setting-out
  • Section references referring to K series interface details
  • ‘Enlarged area boxes’ referring to K series interface details
  • Internal elevation references
  • Setting-out points
  • Dimensions and setting-out other than already done in 1:100 B and in 1:100 E series

H - Cores, stairs and lifts: Back of house stairs

H
Cores, stairs and lifts: Back of house stairs
Escape stairs - back-of-house stairs - plans 1:50
  • Grid lines
  • Numbering of steps
  • Handrails codes
  • Nosings codes
  • Tactile ground surface indicators codes
  • Horizontal setting-out dimensions of stair flights and landings
  • Finished floor level (FFL) indicators
  • Section references to H series 1:5 details
  • Description using materials, systems and finishes codes
Escape stairs - back-of-house stairs - sections 1:50
  • Grid lines
  • Vertical setting-out dimensions of stair flights and landings
  • Floor and landings level benchmarks
  • Numbering of steps

Feature stairs

Feature stairs - plans 1:50
(Stairs of greater visual importance, e.g. main lobby feature stairs)
  • Grid lines
  • Numbering of steps
  • Handrails codes
  • Nosings codes
  • Tactile ground surface indicators codes
  • Horizontal setting-out dimensions of stair flights and landings
  • Finished floor level (FFL) indicators
  • Section references to H series 1:5 details
  • Description using materials, systems and finishes codes
Feature stairs - sections 1:20
  • Grid lines
  • Vertical setting-out dimensions of stair flights and landings
  • Floor and landings level benchmarks
  • Numbering of steps
Feature stairs - details 1:5
  • Grid lines
  • Setting-out dimensions/offsets from grid lines
  • Detail description using materials, systems and finishes codes
  • Handrail/balustrade details

Lifts

Lift enclosure 1:20

Applicable only to feature lift enclosures of visual significance, e.g. glass lifts and similar.

  • Grid lines
  • Setting-out dimensions/offsets from grid lines
  • Detail description using materials, systems and finishes codes
  • Detail reference boxes to 1:5 K series interface details
  • Section references to 1:5 K series interface details

Lift car - plans, reflected ceiling plans and internal elevations 1:20

Only where required - lift cars are often selected from lift supplier’s catalogue, in that case this drawing is not needed.

  • Internal dimensions
  • Detail reference boxes to 1:5 H series interface details
  • Section references to 1:5 H series interface details
  • Systems, materials and finishes codes
Lift car details 1:5
  • Setting-out dimensions/offsets from gridlines
  • Detail description using materials, systems and finishes codes
    • (Only where required - lift cars are often selected from lift supplier’s catalogue, in that case this drawing is not needed)

J - Doors

J
Doors

Door schedule spreadsheet

Doors schedules vary between projects, mostly depending on the security requirements, resulting in the introduction of additional criteria.

  • Door schedule in tabular format and live linked with plot file.
    • (Import spreadsheet door schedule into the plot sheet)
  • Door schedule key to codes and abbreviations in tabular format and live linked with plot file.
  • Door hardware schedule in tabular format and live linked with plot file.
    • (aspects of the door schedule, especially security related hardware and similar, vary from project to project)

Contents of ‘base case’ door schedule:

  • Level
  • Door number
  • Room number
  • Room name
  • Door type
  • Frame profile
  • Meeting stile detail
  • Door seals
  • Door leaf construction
  • Door leaf finish
  • Door leaf width
  • Door leaf height
  • Door leaf thickness
  • Fire rating
  • Door protection
  • Vision panel type
  • Door grille/undercut
  • Door stop
  • Lock/latch
  • Electric locking
  • Pull handle
  • Push plates
  • Bolt latch
  • Roller catch
  • Closer
  • Electromagnetic hold open
  • Reed switch
  • Break glass
  • Special hardware
  • Sign type *
  • Sign text **
  • Remarks

* Statutory signage is scheduled here and should not be mixed-up with S series wayfinding signage, e.g. FIRE DOORS KEEP CLOSED.**

** Sundry elements e.g. roller shutters and the like are scheduled in the same way as any other door on the project. Use the ‘remarks’ column to describe performance related specifics.

Door type elevations 1:50

Schematic only - no dimensions, show only the number and configuration of door leaves. Vision panels, door grilles etc. are identified in the door schedule.

Vertical controls 1:20

Schematic - setting-out of elements associated with doors e.g. door hardware, mechanical grilles, vision panels.

Door details 1:5

Generic details applicable to most doors in the schedule.

Special conditions/specific interface details are to be shown in K series interface details.

Details of internal doors only. External doors are described in C series elevations and K series interface details.

  • Dimensions describing the geometry of door frames - all other variables e.g. partition thickness indicate as ‘VARIES’
  • Dimensions and description of vision panels, grilles and similar

K - Interface details

K
Interface details

Interface details 1:5

Interface details describe the way various building elements (partitions, floors, ceilings, external wall, joinery, etc.) meet at the junctions.

Floor-to-floor section details
Floor-to-external wall section details
Floor-to-internal partitions section details

Ceiling-to-ceiling section details
Ceiling-to-external wall section details
Ceiling-to-internal partitions section details

EXTERNAL WALL-TO-INTERNAL PARTITION PLAN DETAILS
ROOF-TO-EXTERNAL WALL SECTION DETAILS
ROOFING DETAILS
INTERNAL PARTITION-TO-INTERNAL PARTITION PLAN DETAILS
(If required - not needed if it’s common construction)

  • Grid lines where location specific
  • Finished floor level benchmarks where location specific
  • Dimensions
  • Description of the construction using systems and materials codes
    • (Do not include description of applied finishes e.g. sealants, paints, etc. They are described in F series drawings.
    • Do not redraw common details. Make reference to proprietary system in the specification instead.)

L - Furniture: Furniture, fixtures, fittings and equipment (FFE)

L
Furniture: Furniture, fixtures, fittings and equipment (FFE)

Joinery and furniture legend sheet

  • Legend sheet - joinery and furniture only
    • (Loose furniture is identified and described in M series, the L series legend sheet is shared. Lists all joinery items and gives reference to drawing sheet where the 1:20 detail is provided. Lists all loose furniture items and provides brief description. Full description is given in Z series furniture schedule.)

General arrangement plans 1:100

Used to show layout and identify types of loose furniture and fixtures, fittings and equipment (FFE) items.

  • Grid lines
  • Room names, room numbers
  • Furniture and fixtures, fittings and equipment (FFE) codes

(Furniture schedule is commonly done as a standalone A4 document, part of Z series)

M - Joinery

M
Joinery

General arrangement plans 1:100

Required only if not possible to show and code joinery items in B series plans.

  • Grid lines
  • Room names, room numbers
  • Furniture and fixtures, fittings and equipment (FFE) codes

Joinery plans sections and elevations 1:20

Where relevant, show joinery items in the context of other elements - floor, partition, ceiling.

  • Dimensions
  • Description of joinery items using materials, systems and finishes codes
  • ‘Enlarged area boxes’ referring to 1:2 and 1:1 scale details in L series

Joinery details 1:2 1:1

  • Dimensions
  • Detail description using materials, systems and finishes codes

N - Metalwork

N
Metalwork

Architectural metalwork general arrangement plans 1:100

Required only if not possible to show and code joinery items in B series plans.

  • Grid lines
  • Room names, room numbers
  • Furniture and fixtures, fittings and equipment (FFE) codes

Architectural metalwork plans 1:20

Exclude any architectural metalwork associated with external wall e.g. balcony handrails, maintenance walkways, etc., or associated with stairs - they are documented in H and K series drawings.

  • Grid lines
  • Setting-out dimensions - offsets from grids
  • ‘Enlarged area boxes’ referring to 1:5 details in N series
  • Section references to 1:5 details in N series
  • Description using systems, materials and finishes codes

Architectural metalwork elevations and sections 1:20

  • Grid lines
  • Vertical dimensions in millimetres, as offsets from finished floor levels (FFL)
    • (E.g. do not use reduced levels (RL) to establish the height of a handrail)
  • Detail reference boxes to 1:5 details in N series
  • Section references to 1:5 details in N series
  • Description using systems, materials and finishes codes

Architectural metalwork details 1:5

  • Dimensions
  • Detail description using materials, systems and finishes codes

P - Cleaning and maintenance equipment

P
Cleaning and maintenance equipment

Cleaning and maintenance equipment 1:50

For documenting spaces and systems designated for housing the cleaning and maintenance systems, e.g. bespoke retractable cleaning crane and similar.

  • Grid lines
  • Room names, room numbers and finished floor levels (FFL)
  • Graphic representation of slab penetrations/voids
  • Change of level indicators
  • Section references to K series interface details
  • Dimensions and setting-out other than already done in 1:100 V and B series

Q - Wet areas

Q
Wet areas

Wet areas legend sheet

  • Legend sheet - wet areas fixtures and fittings only

(Wet areas fixtures and fittings codes are used exclusively in Q series drawings, on that basis the legend is separated from A and L series legends. Not to be confused with finishes codes e.g. paints and tiles - they are listed in A series general legend.)

Wet area plans, reflected ceiling plans and internal elevations 1:50 1:20

1:50 scale drawings with ‘line of height control diagram’ is commonly sufficient for documentation of the wet areas.

More complex designs require scale 1:20.

  • Grid lines
  • Room names, room numbers and finished floor levels (FFL)
  • Wet areas fixtures and fittings codes
  • Section references referring to K series interface details
  • ‘Enlarged area boxes’ referring to K series interface details
  • Internal elevation references
  • Setting-out points
  • Dimensions and setting-out other than already done in 1:100 E series

R - Miscellaneous

R
Miscellaneous
Any other drawn information that doesn’t fall into the BVN Alphabet sections.

S - Signage

S
Signage

Signage (wayfinding) 1:20 1:5

Wayfinding signage elements will often be documented by a signage consultant. In that case we only do setting-out in B and E series general arrangement plans.

Statutory signage e.g.Fire doors keep closed, etc., is most often associated with the doors and is scheduled as part of the J series door schedule.

Freestanding signage elements 1:20

Required only if wayfinding signage design is part of our scope of works.

  • Plan, section, elevation in ‘nested’ arrangement
  • ‘Enlarged area boxes’ referring to S series 1:5 details
  • Section references
  • Elevation references
  • Dimensions
  • Systems, materials and finishes codes

Ceiling and wall hung signage elements 1:20

Required only if wayfinding signage design is part of our scope of works.

  • Plan, section, elevation in ‘nested’ arrangement
  • ‘Enlarged area boxes’ referring to S series 1:5 details
  • Section references
  • Elevation references
  • Dimensions
  • Systems, materials and finishes codes

Details 1:5

Required only if wayfinding signage design is part of our scope of works.

  • Dimensions
  • Detail description using materials, systems and finishes codes

T - Landscape

T
Landscape
General arrangement plan 1:100
  • Grid lines
  • Finished levels (RL=)
  • Change of level indicators
  • Ramps and falls
  • Setting-out points
  • ‘Enlarged area boxes’ referring to T series 1:20 or 1:10 details
  • Section references to 1:20 or 1:10 details
  • Elevation references to 1:20 or 1:10 details
  • Critical dimensions and setting-out
  • Description of finishes using materials, systems and finishes codes
  • Change/delineation between finishes
  • Graphically differentiate between the existing structure and the new build elements
Plans, sections and elevations in ‘nested’ arrangement 1:20 1:10
  • Dimensions
  • Detail description using materials, systems and finishes codes

U - Demolition

U
Demolition

Demolition plans 1:100

  • Grid lines
  • Existing plans
  • Existing room names
  • ‘Enlarged area boxes’ referring to 1:50 and 1:20 enlarged details if required
  • Graphically indicate parts of slab to be removed
    (Slab penetrations are dimensioned in V series drawings)
  • Differentiate between the following demolition categories:
    • Items to be demolished and removed from site
    • items to be demolished and re-used as part of the project
    • items to be removed and handed back to the building owner
    • items to be retained to form part of the project

Demolition plans and elevations 1:50 1:20

Enlarged areas of special sensitivity.

V - Concrete and waterproof plans

V
Concrete and waterproof plans

Concrete and waterproofing plans 1:100

  • Grid lines
  • Setdowns
  • Top of structural slab level (SSL=)
  • Concrete upstands/hobs
  • Ramps
  • Movement/building joints
  • Indicate falls and gradients of slab/screed
  • General note about levelling screed stating finished screed level (FSL=) if applied uniformly on entire slab or,
    • Graphically differentiate areas with levelling screed and indicate finished screed levels (FSL=)
  • Graphic representation and waterproofing codes - to slab on ground areas and to wet areas
  • Services penetrations - mechanical, electrical, hydraulic
  • Horizontal dimensions of slab edges, penetrations, door openings and similar, from grid lines
  • ‘Enlarged area boxes’ referring to V series 1:50 plans (if required)
  • ‘Enlarged area boxes’ referring to H series 1:50 plans for stairs setting-out and details
  • Section symbols referring to K series 1:10 or 1:5 details of intricate edge conditions
  • Internal elevation symbols referring to V series 1:50 concrete elevations (if applicable)

Concrete slab reflected ceiling plans 1:100

Depending on the configuration of the building, there may be a requirement for showing areas of underside of concrete slab that need thermal insulation.

  • Grid lines
  • Reflected ceiling plan showing beams and slab thickening
  • Movement/building joints
  • Thermal insulation codes showing areas to be insulated

Concrete setting-out elevations 1:50

Only if required - e.g. mechanical penetrations through concrete core wall and similar.

  • Grid lines
  • Floor and Structural Slab Level (SSL=) benchmark indicators
  • Finished Screed Level (FSL=) benchmark indicators
  • Horizontal and vertical dimensions from grid lines and above SSL
  • Internal elevation symbols referring to other 1:50 concrete elevations within V series

Lift shaft external elevations 1:50

  • Grid lines
  • Floor and structural slab Level (SSL=) benchmark indicators
  • Finished screed level (FSL=) benchmark indicators
  • Vertical dimensions above structural slab level (SSL) defining the size of penetrations required for lift doors and controls

Z - Specifications

Z
Specifications

Specifications

Written document with technical directions and conditions describing the quality of materials and standard of workmanship of a project. It deals with items that are not shown on drawings or ‘assembly of elements’ schedules.