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Alkali is an online PDF markup tool for steel estimation. Build accurate bids in half the time.

Tons Steel
0.0 tons
Automatically detects beams, columns, joists, braces, and base plates.

AI takeoff assist
Automatically detects beams, columns, joists, braces, and base plates.
Built-in AISC weights
With the AISC manual baked in, Alkali calculates project tonnage automatically.
Nesting
Convert takeoff into stock-aware nesting plans that reduce drop and material cost.
Export to Tekla, ...
Export PDFs and material lists to Tekla, Bluebeam, Adobe, and Excel.
Tekla
Excel
BluebeamIntelligent search across massive bid sets.
Bottom of footing is 4'-0" below the interior slab, typical. Example F10.5 is a 2'-8" deep footing with top of footing 1'-4" below slab, so BFF = 4'-0". See S-101 and details at S-310.
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A shared workspace for collaboration and estimating.
Collaborate on the same estimate with live cursors. Divide and conquer, minimize rework.
Realtime collaboration
Collaborate on the same estimate with live cursors. Divide and conquer, minimize rework.
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Add teammates by email, or generate public share links. Try one here.
Grows with your team
Alkali AI gets better with every project, helping your shop estimate faster and smarter over time.