Draw your slab on screen, get cubic yards instantly. ConCal handles the math so you can focus on the job.
No spreadsheets. No guessing. Just draw and go.
Click to place points and trace any polygon — L-shapes, curves, cut-outs, you name it.
Cubic yards update in real time as you draw. Set your thickness once and forget it.
Materials, labor, waste, and markup — all in one place, ready to hand to a customer.
Strip footings, walls, columns — add them to your estimate with a few clicks.
Pull the forecast for your pour date right inside the app. No more tab-switching.
Save projects as JSON files and reload them any time. Your history lives in your browser.
Join concrete contractors who estimate in minutes, not hours. Free to start — no credit card, no download.
Free plan includes unlimited shapes & instant CY. Pro unlocks PDF proposals & job history.
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