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Construction Drawing
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CSteel
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Fast material takeoffs

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

Structural Drawing

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.

133.5tons

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.

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Find and understand details

Intelligent search across massive bid sets.

Courthouse Page 16

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.

Don't miss scope

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Built for teams

A shared workspace for collaboration and estimating.

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Sarah
Jason

Realtime collaboration

Collaborate on the same estimate with live cursors. Divide and conquer, minimize rework.

Share projects

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.

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