Match the drawn floor grid, finished-floor height, and understructure clearance to the specified panel module, pedestal height, and load class for each area, then check perimeter transitions, cutouts, and grounding before treating the system as one uniform assembly.
Assemble the review package
Gather the floor plan grid layout, finished-floor and plenum section, power/data floor plan, equipment and use plan for each room, and the issued access flooring specification. Review office areas separately from equipment or mechanical rooms, since their load and grounding requirements can differ.
WBDG publishes UFGS 09 69 13: Rigid Grid Access Flooring as a public guide-specification reference (accessed September 22, 2026). Use your project’s issued specification and amendments for the actual comparison; the guide specification does not automatically govern your project. The checklist below is an original suggested review workflow, not a reproduction of the UFGS requirements.
Eight checks to run against the issued set
Use one record per location or system. The CSV contains the same eight prompts plus fields for source revisions, observed evidence, the review owner, the decision, and closure references.
| Check | Sources to compare | Question to resolve |
|---|---|---|
| Grid and panel assignment | Floor plan grid + specified panel module | Does the drawn floor grid module match the specified panel size, and is one consistent module used across connected rooms? |
| Finished floor height | Section height callout + pedestal and panel build-up | Does the drawn finished-floor-to-structure height match the specified pedestal height plus panel thickness and leveling range? |
| Load rating by area | Equipment and use plan + specified load class | Does the specified rolling, concentrated, or uniform load class match the equipment and traffic shown for that area, distinguishing office space from equipment rooms? |
| Perimeter and transitions | Ramp and step details + perimeter trim clauses | Are ramps, steps, and transitions to adjacent finish floors detailed and specified consistently, including handrails where a ramp or step triggers them? |
| Cutouts and grommets | Power/data floor plan + cutout and grommet clauses | Do the shown cutout locations correspond to the specified grommet, cutout reinforcement, and fire-stopping requirements at floor penetrations? |
| Understructure clearance | Plenum section + pedestal height and clearance notes | Does the drawn plenum depth provide the clearance the specification and the underfloor cabling or air distribution require? |
| Grounding and bonding | Electrical grounding plan + specified bonding requirements | Does the panel grid grounding or bonding scheme shown match what the specification requires for static control or electrical continuity? |
| Seismic or lateral bracing | Structural notes + specified bracing requirements | Where seismic bracing is required, does the specified bracing type and spacing match the structural criteria referenced for the project? |
Worked example: one panel type carried into a heavier-use room
Illustrative example: an equipment room is drawn with the same access-floor panel type as the adjoining office area, but the specified load class for the standard panel is a lighter rolling and uniform load than the equipment shown in that room would place on it, and neither the drawings nor the specification call a heavier panel or reinforced understructure for that zone.
Identify the equipment weights and traffic for the room, compare them against the specified load classes available, and ask the designer to assign the correct panel and understructure to that area. Recheck the plenum clearance and grounding for the revised assembly before closing the item.
Avoid a false conflict
A uniform-looking floor grid on the plan does not confirm a uniform load rating underneath it. Conversely, a heavier panel specified for one area does not need to be assumed everywhere. Confirm the load class assigned to the specific area being reviewed.
When requirements disagree, follow the project’s document-control and clarification process. Do not assume that drawings always override specifications, or the reverse. Identify the exact sources and request an authorized decision.
Close the issue across the affected documents
Record the location or tag, drawing and specification references, issue dates, observed difference, and the decision needed. Assign an owner and keep the item open until the response identifies the governing requirement. Check the revised drawings and specification references together; a response email alone may leave the issued package inconsistent.
For the overall process, use the guide to drawing and specification conflicts. Mark an inapplicable checklist row with a reason, and distinguish a verified correction from a question that still needs design information.
Where Groundbook fits
Groundbook’s drawing and specification review helps investigate potential disagreements in the documents you supply. Include the relevant specification sections and drawing references, then verify the cited evidence with the responsible reviewers before acting on a finding.