Compare construction spec sheets, export to clean Excel.
Easily convert 2–3 manufacturer PDF submittals into a normalized, side-by-side compliance table — exported as clean XLSX in 60 seconds. Built for GCs reviewing submittals and subs filing or-equals.
Vendor A · Submittal 1 · Spec of Record
The baseline — your first vendor, the originally specified product, or the submittal under review.
Drop PDF here or browse
Vendor B · Submittal 2 · Proposed Substitute
The comparison — your second vendor, an alternate submittal, or the proposed or-equal.
Drop PDF here or browse
Sample output
| Spec field | Vendor A | Vendor B |
|---|---|---|
| UL Listing | UL 1995 | UL 1995 |
| SEER Rating | 16.0 | 14.5 |
| Refrigerant | R-410A | R-410A |
| AHRI Certification | AHRI 210/240 | — |
| Voltage | 208/230V | 208/230V |
Sample preview — your comparison will use your vendor data.
Private by default
Your spec sheets stay yours. PDFs are stored encrypted, never shared with other accounts, and never used to train models.
Built for construction
Field extraction tuned for CSI MasterFormat divisions — UL listings, ASTM specs, AHRI numbers, NEMA ratings.
Accurate, or we fix it
AI extraction with normalized field matching across vendors. If a spec sheet doesn't parse cleanly, email us and we'll tune the model.
Spec fields that actually matter, by division
DropSpec extracts the compliance fields engineers and inspectors check — not marketing specs. MEP subs use it to build or-equal packages. GCs use it to review them.
Division 09 — Finishes
Fire rating, STC/IIC, ASTM C36/C1396, flame spread index, thickness, board type.
Division 23 — HVAC
SEER/EER, AHRI certification, ESP, CFM, refrigerant type, UL 1995, ASHRAE 90.1.
Division 26 — Electrical
UL 67/489/1008, AIC rating, interrupting capacity, SCCR, voltage, NEMA enclosure type.
Division 22 — Plumbing
ASME B16 compliance, pressure rating, material spec, NSF/ANSI 61, connection type.
Also used across Division 03, 05, 07, 21, and 20+ other industries.
Comparing more than two? Use Projects.
Group as many comparisons as you need into a single Project. DropSpec ranks vendors across the full set, flags compliance risks, and keeps every submittal review in one place. Projects are a Pro+ feature.