
How to Estimate Concrete Quantities for Slabs, Walls, and Floors
By Concrete Plot
Learn how to accurately estimate concrete quantities for slabs, walls, and floors to avoid costly delays and waste in your construction projects.

Tell us what you're pouring — a slab, wall, footing, or column — and the dimensions.ConcretePlot works out how much concrete you need, suggests suitable mixes, and tells you whether to hand-mix on site or order a truck.
Enter the type of pour — slab, wall, footing, column — plus length, width, thickness, and height in the units you use on site.
Get concrete volume in m³ or yd³, with recommended mix designs for your application — strength, workability, and exposure class where relevant.
See at a glance whether the job is a hand-mix quantity or large enough to warrant a ready-mix truck delivery.
“I need a 4 m × 5 m garage slab, 150 mm thick” → 3.0 m³ concrete, mix options for a domestic slab, and a recommendation to order a small truck rather than batch by hand.
Practical advice on volumes, mix design, and when to hand-mix or order a truck for your next job.

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Ready to work out your next pour? Open the app or explore the site.