PWGSC National CADD Standard
5.0 Annex A - CADD Layers
The Standard Layer List below lists the most-used layer names defined under the PWGSC Layering Standard. New layer names can always be created using the field abbreviations and extensions listed in Annex B – Layer Field Descriptions. The French abbreviations are listed just as a reference and should only be used with drawings annotated in French.
A layer name may include an additional subdivision for grouping subsets of layers that represent building systems or categories of related data. Each subdivision contains a primary layer (underlined) and supplementary layers (in grey) to subdivide the information with greater precision. The use of supplementary layers is optional and depends on a drawing's requirements.
Architecture
Table Summary
The Standard Layer List below lists the most-used layer names for the Architecture discipline defined under the PWGSC Layering Standard. New layer names can always be created using the field abbreviations and extensions listed in Annex B Layer Field Descriptions. The French abbreviations are listed just as a reference and should only be used on drawings annotated in French.
| English Abvn | Description | French Abvn |
|---|---|---|
| A-CI | Circulation | A-CI |
| A-CI-CVY | Horizontal conveyors, moving sidewalks | A-CI-HOR |
| A-CI-ELE | Elevators | A-CI-ELE |
| A-CI-ELE-BRF | Lift platforms for barrier-free access | A-CI-ELE-ACF |
| A-CI-RMP | Ramps | A-CI-RAM |
| A-CI-RMP-BRF | Barrier-free ramps | A-CI-RAM-ACF |
| A-CI-STR | Stairs, stairwells, and ladders | A-CI-ESC |
| A-CI-STR-ESC | Escalators | A-CI-ESC-ROU |
| A-CL | Ceilings | A-PF |
| A-CL-BKH | Bulkheads | A-PF-GYP |
| A-CL-FIN | Ceiling finishes | A-PF-FIN |
| A-CL-FIN-IDN | Ceiling finishes description | A-PF-FIN-NUI |
| A-CL-GRD | Physical ceiling grid | A-PF-TRA |
| A-CL-GRD-SCD | Planning grid lines | A-PF-TRA-SCD |
| A-CL-OPN | Openings, penetrations, skylights | A-PF-OUV |
| A-DK | Deck | A-TR |
| A-DK-BAR | Deck railings | A-TR-BAR |
| A-DK-OLN | Deck outline | A-TR-CON |
| A-DR | Doors | A-PO |
| A-DR-EXT | Exterior doors, jambs, casework, swings | A-PO-EXT |
| A-DR-EXT-IDN | Exterior doors identification numbers | A-PO-EXT-NUI |
| A-DR-INT | Interior doors, jambs, casework, swings | A-PO-INT |
| A-DR-INT-IDN | Interior doors identification numbers | A-PO-INT-NUI |
| A-DR-INT-PRT | Interior doors in a partition wall | A-PO-INT-CLS |
| A-EM | Emergency | A-UR |
| A-EM-HAT | General hatching | A-UR-HAC |
| A-EM-HAT-COR | Corridor hatching | A-UR-HAC-COR |
| A-EM-HAT-STR | Staircase hatching | A-UR-HAC-ESC |
| A-EM-HAT-WAL | Wall hatching | A-UR-HAC-MUR |
| A-EM-OLN | General outline | A-UR-CON |
| A-EM-OLN-COR | Corridor outline | A-UR-CON-COR |
| A-EM-OLN-STR | Staircase outline | A-UR-CON-ESC |
| A-EM-OLN-WAL | Wall outline | A-UR-CON-MUR |
| A-EM-SYM | Emergency symbols: exit signs, stairs, first aid kit location, etc. | A-UR-SYM |
| A-EM-TXT | Emergency text | A-UR-TEX |
| A-FL | Floors | A-PC |
| A-FL-CTP | Countertops | A-PC-CMP |
| A-FL-CTP-PRT | Countertops on partitions | A-PC-CMP-CLS |
| A-FL-FIN | Floor finishes | A-PC-FIN |
| A-FL-FIN-IDN | Floor finishes description | A-PC-FIN-NUI |
| A-FL-LEV | Floor level changes, ramps, truck wells | A-PC-NIV |
| A-FL-MIL | Architectural specialties, casework and millwork | A-PC-EBE |
| A-FL-OPN | Openings, floor hatching | A-PC-OUV |
| A-FL-OVH | Overhead items, skylights, overhangs, soffits | A-PC-SUS |
| A-FL-RAS | Raised floors | A-PC-SUR |
| A-GL | General | A-GL |
| A-GL-ATT | Attributes | A-GL-ATT |
| A-GL-DIM | General architectural dimensions | A-GL-DIM |
| A-GL-IDN | Identification, elevation points | A-GL-NUI |
| A-GL-RME | Read Me general drawing info. | A-GL-LIS |
| A-GL-TMP | Under construction lines, temporary aids | A-GL-TEM |
| A-GL-TXT | General text (street names) | A-GL-TEX |
| A-PL | Plan Information | A-PN |
| A-PL-OLN | Open-to-Below plan information outline | A-PN-CON |
| A-RF | Roofs | A-TO |
| A-RF-OLN | Roofs edge and features | A-TO-CON |
| A-RF-OPN | Roof openings for fans, stacks and ducts | A-TO-OUV |
| A-RF-OVH | Overhead items, roof above, canopies, soffits | A-TO-SUR |
| A-RF-WLK | Roof boardwalks, catwalks | A-TO-PAS |
| A-WD | Windows | A-FN |
| A-WD-EXT | Exterior window panes and frames | A-FN-EXT |
| A-WD-INT | Interior window panes and frames, side windows | A-FN-INT |
| A-WD-INT-PRT | Interior windows in a partition wall | A-FN-INT-CLS |
| A-WD-OVH | Overhead windows, skylights | A-FN-SUR |
| A-WD-SIL | Window sills | A-FN-ALL |
| A-WL | Non-Structural Walls | A-MU |
| A-WL-ACC | Architectural or protection elements, guards | A-MU-ACC |
| A-WL-ACC-BRF | Barrier-free accessories (grab bars, etc.) | A-MU-ACC-ACF |
| A-WL-EXT | Exterior walls | A-MU-EXT |
| A-WL-EXT-HAT | Exterior walls hatching | A-MU-EXT-HAC |
| A-WL-FIN | Wall finishes | A-MU-FIN |
| A-WL-FIN-IDN | Wall finishes description | A-MU-FIN-NUI |
| A-WL-HED | Door and window headers | A-MU-LIN |
| A-WL-HED-PRT | Door and window headers on partition | A-MU-LIN-CLS |
| A-WL-INT | Interior walls | A-MU-INT |
| A-WL-INT-LOW | Interior walls - low walls | A-MU-INT-BAS |
| A-WL-INT-LOW-PRT | Interior partitions - low walls | A-MU-INT-BAS-CLS |
| A-WL-INT-PRT | Interior partition walls | A-MU-INT-CLS |
| A-WL-OLN | Wall outlines, building footprints, sheds, etc. | A-MU-CON |
| A-WL-WSR-PRT | Washroom partitions | A-MU-SAT-CLS |
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