Calculator
Concrete Slab Calculator
Calculate the concrete volume required for floor slabs, suspended slabs, and ground-level pours. Get accurate m³ estimates for ordering ready mix concrete in Zanzibar.
Instant estimate
13.20 m³
Concrete volume
Useful for slab, foundation, and ready mix concrete quotation planning.
Planning estimate only. Zanzibaba can review your BOQ before material supply coordination.
How to Calculate
Slab Concrete Formula
Volume = Slab Area × Thickness
Multiply the plan area of the slab (length × width) by the slab thickness in metres. Standard residential slabs are typically 100 mm–150 mm thick. Commercial and suspended slabs may require 150–200 mm or more depending on structural design.
Ground slab
12 m × 8 m × 0.12 m = 11.52 m³
Suspended slab
10 m × 6 m × 0.20 m = 12.00 m³
Tip
Add 5–10% waste for uneven ground and formwork tolerances.
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Next steps
Need concrete supply coordination for your slab pour?
All building materials under one trusted roof — WhatsApp context or upload your BOQ and we coordinate the lines your site actually needs.
Reply within 24h Mon–Sat on structured requests — indicative timing, not a guarantee.
First steps
- 1.Share photos, a BOQ or voice notes on WhatsApp
- 2.We confirm lines, indicative prices and delivery windows
- 3.Materials leave the yard — coordinated to your site