Catch concrete bid misses before the number goes out.
TakeoffGuard is a bid-preflight lane for small concrete subcontractors: upload the plan PDFs, marked-up takeoff, estimator Excel, and scope notes; get back the missing, duplicated, stale, or unpriced lines that deserve a senior review.
Validation page only. Early users get one manual redacted bid review before CAD, BIM, or estimating-system integrations are built.
bid preflight
312 lines · 11 review · 4 missing price
Missing structure
Plan calls out grade beam GB-14; no matching worksheet quantity
Unit mismatch
Wall formwork calculated in LF while estimate tab prices SF
Scope note
Addendum mentions vapor barrier under slab; no priced line found
Estimator question
“Confirm GB-14 quantity and vapor barrier scope before this bid is released.”
Narrow customer
Small concrete subcontractors with 2–12 estimators bidding commercial jobs from plan PDFs, marked-up takeoff screenshots, and Excel workbooks.
Paid problem
A missed structure, duplicated quantity, bad unit, or unpriced addendum can turn into a margin hit, lost bid, change-order fight, or weeks of rework.
Landing test
Join to test a concierge redacted bid-preflight review before TakeoffGuard asks for CAD/BIM, estimating-suite, or ERP integrations.
Day-in-the-life pain
The bid is due Friday. The plan changed Tuesday. Excel still looks green.
A senior estimator is bouncing between PDFs, addenda, highlighted plan screenshots, supplier assumptions, and a workbook with hundreds of rows. The team does not need a generic AI spreadsheet. They need a second-pass risk packet that points to the few quantities and scope notes that could burn margin.
Input
Upload one bid folder: plan PDFs, marked-up screenshots, estimator Excel, scope notes, alternates, exclusions, and any supplier or rebar assumptions.
Checks
TakeoffGuard compares worksheet quantities against plan areas/labels, flags missing structures, duplicate line items, unit mismatches, stale assumptions, and unpriced scope notes.
Output
A bid-risk packet: safe / review / missing line items, estimator questions, owner-ready exclusions, and the exact cells or plan areas that need a second look.
Why the workaround breaks
The risky part is not drawing one line. It is trusting every line after the folder changes.
Concrete takeoff work carries hidden context: plan labels, addenda, alternates, inclusions, exclusions, worksheet formulas, unit conventions, and estimator judgment. Generic automation misses that context; a bid preflight should preserve it and surface exceptions.
PDF-to-worksheet cross-check
Not a full replacement estimator. It checks whether the Excel bid matches the visible plan structures and estimator notes before submission.
300-line-item sanity scan
Footings, slabs, walls, columns, formwork, rebar, alternates, and exclusions get missing/duplicate/unit-risk flags.
Senior-estimator review queue
The estimator sees the few questionable lines first instead of rereading every page and every worksheet tab.
Scope and exclusion trail
Notes that affect price are pulled into one review lane so a cheap bid does not hide omitted work.
Concierge-first validation
Early users send a redacted historical bid folder and receive a manual preflight report before any deep CAD/BIM integration is promised.
Evidence, not proof
Public threads point to a narrow wedge: estimators still bridge PDFs, Excel, and hidden scope context.
The evidence does not prove demand. It justifies a focused validation question: will a small concrete subcontractor share one redacted historical bid folder to receive a manual bid-risk preflight packet?
HN Launch · concrete takeoff still runs through PDFs and Excel
A concrete estimating workflow is described as a senior estimator opening plan PDFs, manually tracing footings/walls/slabs, then building an Excel sheet with 300+ quantity line items. Bids can take weeks or months.
HN Ask · spreadsheet-heavy processes still waste weekly operator time
A business-process thread asks specifically for manual, spreadsheet-heavy processes that cost time every week; one reply points to reconciling billing, support, and ops data between systems.
HN Automation thread · meet operators where their spreadsheets already live
Operators push back on generic automation: their workflow lives in Google Sheets or Excel, so a useful tool must start from existing sheets rather than force a new platform.
HN Automation thread · source spreadsheets come from vendors and internal reports
A commenter warns that folders of spreadsheets may come from internal systems, external vendor reports, bank statements, inventory counts, and status exports — hidden context matters more than a blank AI sheet.
Objections
Why this deserves its own landing test.
Why not buy a full takeoff suite?
This landing test is narrower: a second-pass bid preflight for small concrete subcontractors already using PDFs and Excel.
Will it estimate automatically?
No. The first promise is risk reduction: find missing, duplicated, stale, or unpriced items before a human estimator signs off.
Is this just a spreadsheet template?
The input can stay Excel, but the output is a structured exception packet tied to plan evidence and estimator questions.
What about liability?
Early reports are review aids, not stamped estimates. Validation asks whether teams will pay for a faster, safer second check.
What early waitlist users get
A manual preflight of one redacted bid folder: plan PDFs, worksheet tabs, scope notes, addenda, alternates, and exclusions. You get back a bid-risk packet with missing/duplicate/unit-risk lines, estimator questions, and owner-ready scope notes.
Validation target: 5+ qualified concrete estimating emails or 2+ teams willing to share redacted historical bid folders for a concierge review.