How to Calculate Building Material Quantities Before Ordering on Benna KSA
- Hussain Ghazali

- 7 hours ago
- 2 min read
When managing a construction project in Saudi Arabia, estimating the right quantity of materials is critical. Over-ordering wastes money; under-ordering causes costly delays. This guide explains how to use Benna KSA's platform to calculate material quantities and build an accurate shopping list before you buy.
Start with Your Project Plans
Before opening Benna's website, gather your architectural and structural drawings. Even rough sketches help you calculate floor areas, wall lengths, and volumes. If you don't have formal drawings, take measurements yourself — length, width, and height of each space you're working on.
Estimating Cement & Concrete Quantities
For a standard concrete slab, you need approximately 0.38 cubic meters of concrete per square meter for a 100mm thick slab. Use this formula: Volume = Length × Width × Thickness. Add 10% wastage factor. Then search Benna for cement, sand, and aggregate in the right proportions, or look for ready-mix concrete delivery.
Calculating Tile Requirements
To tile a room, calculate the floor area (Length × Width), add 15% for cutting waste and pattern matching, then divide by the tile size. For a 60×60cm tile in a 20 sqm room: (20 × 1.15) ÷ 0.36 = approximately 64 tiles. Check product listings on Benna for available box sizes and coverage per box.
Paint Coverage Calculation
Most emulsion paints cover 8–12 sqm per liter per coat. For two coats on 100 sqm of wall: 100 ÷ 10 × 2 = 20 liters required. Always check the technical data sheet on Benna's product listing for the specific paint's coverage rate, as it varies by brand and formulation.
Using Benna's BOQ Feature for Large Projects
For complex projects, submit a Bill of Quantities (BOQ) directly through Benna KSA. Upload your project specifications and let multiple verified vendors provide comprehensive quotes. This is the fastest way to get accurate pricing for large-scale construction procurement in Saudi Arabia.
Add a Buffer to Your Order
Always order 10–15% more than your exact calculation to account for cutting waste, damaged pieces, future repairs, and dye lot matching on tiles. A small buffer order now is far cheaper than reordering later when the exact product may be out of stock or a different batch.

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