AI Construction Estimating Software for Contractors

Turn a full plan set into a priced draft bid you review, in minutes

Upload a full PDF drawing set and BuildCrux runs a multi-pass pipeline that first identifies every sheet, then computes takeoff quantities, then prices each line against a calibrated unit-cost library. Three AI models then independently re-price and cross-check every line, arbitrating any disagreement so a misread never reaches your bid. It reads residential plans, restaurant and dental fit-outs, and large commercial multi-discipline sets across mechanical, electrical, plumbing, structural, and finishes, on both tenant-improvement and ground-up work. Pricing is location-aware: it reads the project address off the title block and adjusts labor and material to that market instead of quoting a high-cost metro job at national rates. The plan reading is grounded in a document-traceable dictionary of drawing symbols, abbreviations, and furnishing conventions built from public-domain standards, so it decodes an owner-furnished O/I note instead of guessing. Every line carries a confidence flag and a link back to its source sheet, and advisory checks surface trades that look under-itemized plus code-required items the drawings rarely show, like ADA clearances. The result is an AI draft you review, edit, and adjust before you bid, never a finished number you send blind.