Preqonn AI
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Walls & Ceilings · Division 9

Every tile,
spec'd.

Grid LF, tile SF, NRC/CAC, seismic clip count, plenum-rated callouts. A submittal-ready acoustic ceiling bid that an inspector can't reject.

Book a Demo → See it on your RCP
SDC C-F seismic verified
NRC + CAC per room function
NFPA 90A plenum-rated
What goes wrong

Where acoustic ceiling bids break.

Mixed grid profiles. NRC/CAC by room function. Seismic clips inspectors actually count. Plenum-rated tiles where the spec quietly demands them.

01
Pain

Grid LF and tile SF, by room, by profile.

One floor mixes 15/16" exposed, 9/16" narrow-reveal, and tegular edges across open office, conference, and exam rooms. Tile families switch with them: mineral fiber, fiberglass, metal, wood. Counting by hand off the RCP is hours.

RCP · A-8 series · acoustic spec 09 51 13
Preqonn AI

Grid LF + tile SF, split by profile and family.

Reads the RCP, segregates rooms by grid type and tile family, and outputs a line for every profile: 15/16" main runners, 9/16" narrow-reveal, tegular edge tile. Manufacturer SKUs from Armstrong, USG, and CertainTeed price books.

02
Pain

NRC/CAC mismatch on conference and exam.

The acoustic spec wants NRC 0.90 / CAC 40 in conference rooms and a plenum-rated tile in exams. Estimators routinely default to one tile across the whole floor. Punch list catches it. Tear-out follows.

Spec 09 51 13 · room finish schedule
Preqonn AI

NRC + CAC per room function.

Cross-checks the acoustic spec against the room finish schedule. Flags any room where the tile family fails the spec'd NRC or CAC. Suggests the next-tier tile by manufacturer. Cites the line in the spec it came from.

03
Pain

Seismic clips and bracing get missed.

In SDC C-F, ASTM E580 demands perimeter clips, splay wires, and compression posts at counted intervals. Skipping the brace count is the single fastest way to fail inspection and re-detail the entire ceiling.

ASTM E580 · ASCE 7 §13 · IBC §808
Preqonn AI

Clip + brace count, by SDC.

Reads the project SDC from the structural drawings. Counts perimeter clips at 2'-0" o.c., splay-wire braces at 12'-0" o.c., and compression-post locations. Outputs a labeled BOM line ready for the inspector.

04
Pain

Plenum used for return air. Tile isn't rated.

NFPA 90A and the mechanical drawings say the plenum is a return-air path. Half the tile families in the spec aren't plenum-rated. The flag lives three sheets away from the RCP and rarely gets caught.

NFPA 90A · M-2 return strategy · 09 51 13
Preqonn AI

Plenum-rated where the mech says so.

Cross-references the mechanical return-air strategy against the acoustic schedule. Flags every room where the spec'd tile is non-rated in a return-air plenum. Substitutes a UL-listed equivalent and prices it.

How the takeoff lands

From outline, to grid, to signed BOM.

One reflected ceiling plan. Four passes. Outline. Grid. Tile SF per family. Seismic overlay. The bid lands at the bottom, signed.

01

Outline. Floor boundary from the RCP.

Walls, mullions, soffits, bulkheads. Net ceiling area only.

A-8.01 · RCP Net SF
02

Grid. 15/16" mains + 4'×4' cross tees.

Main runners every 4'-0", cross tees every 2'-0". Profile shifts to 9/16" narrow-reveal where the spec calls for it.

ASTM C635 / C636 Heavy-duty
03

Tile SF. Per family, per room.

Open office: NRC 0.70 mineral fiber. Conference: NRC 0.90 narrow-reveal. Exam: plenum-rated.

ASTM E1264 NRC + CAC NFPA 90A
04

Seismic. Perimeter clips + brace count.

SDC D. 38 perimeter clips at 2'-0" o.c. 14 splay-wire braces. 6 compression posts. Inspector-ready.

ASTM E580 ASCE 7 §13 IBC §808
ACT-03 · RCP TAKEOFF Step 01 · Outline
BID PACKAGE · ACT 8,632 SF
Grid LF5,644
Clips + Braces58
SDCD · verified
Code · auto-checked

Every standard the inspector asks for. Cited.

Every grid call, tile family, seismic detail, and plenum flag carries the spec line that drove it. The compliance log is part of the bid.

ASTM E1264 Tile classification. Type, pattern, light reflectance, NRC, CAC checked per room. ✓
ASTM C635 / C636 Grid + installation. Heavy-duty main runner classification and tolerance. ✓
ASTM E580 Seismic restraint. Perimeter clips, splay wires, compression posts, by SDC. ✓
IBC §808 · ASCE 7 §13 Suspended ceiling code. Lateral force coefficients, attachment requirements. ✓
NFPA 90A Plenum return air. Tile UL listing verified where plenum is a return path. ✓
CISCA Guidelines Industry standard practice. Recommendations applied to grid spans and reveals. ✓
Manufacturer price books baked in Armstrong USG CertainTeed Live SKUs · live lead times
FAQ

The questions before the demo.

The four every acoustic ceiling estimator asks.

Every room is segmented and tagged independently. 15/16" exposed, 9/16" narrow-reveal, tegular edges, slot-detail - each profile gets its own LF line on the BOM. If a room's profile is ambiguous on the RCP, we flag it with an RFI citing the sheet and detail callout.
Reads the Seismic Design Category from the structural drawings or the geotechnical report, applies ASTM E580 and ASCE 7 §13 rules to the ceiling area, and counts perimeter clips at 2'-0" o.c., splay-wire braces at 12'-0" o.c., and compression posts. The count comes with locations on the RCP.
We catch it. The mechanical return-air strategy is cross-referenced against the acoustic schedule. Where the spec'd tile isn't UL-listed for plenum return, we flag the conflict, suggest a plenum-rated equivalent from the same manufacturer family, and draft the RFI.
Armstrong, USG, and CertainTeed for tile families and grid systems. Live SKU pricing, current lead times, and discontinuation flags. If the spec calls a part that's been retired, we surface the manufacturer-listed equivalent and price both.
Try it

See it work on your live RCP.

20-minute demo. Bring a real PDF set. We'll run it through Preqonn AI and walk the acoustic ceiling output.

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