If you are planning your build and pricing materials, one of the first numbers you need is how many blocks the house will take. It affects your cement, sand and labour estimates too.
As a planning guide, a standard three-bedroom bungalow in Ghana uses roughly 7,000 to 9,000 blocks, depending on whether you build with 6-inch or 9-inch blocks, your wall heights and the design.
Estimated blocks by house size
| House type | Estimated blocks | Approx. cement (bags) |
|---|---|---|
| 2-bedroom bungalow | 5,000 – 6,500 | 250 – 350 |
| 3-bedroom bungalow | 7,000 – 9,000 | 350 – 480 |
| 4-bedroom / storey | 10,000 – 14,000+ | 500 – 700+ |
How the block count is worked out
Builders calculate it from the total wall area. A standard sandcrete block face covers about 0.1 m², so roughly 10 blocks cover one square metre of wall. Your builder totals the length of all walls, multiplies by height, subtracts doors and windows, then adds a small wastage allowance.
6-inch blocks are common for internal walls and lighter builds; 9-inch blocks give stronger external walls but cost more and need more mortar. Your engineer will specify which to use where.
Why you still need a bill of quantities
These numbers are for early planning. The only accurate count comes from a bill of quantities (BOQ) prepared from your actual drawings. Buying too few blocks stalls the build; buying too many ties up cash and risks breakage. For more on planning your budget, see our 3-bedroom house cost guide and the 7 mistakes to avoid when building in Ghana.
Let us prepare your BOQ
Grace Home Construction can turn your plan into a precise materials schedule and build it for you — no guesswork, no costly over-ordering.
Frequently asked questions
A standard 3-bedroom bungalow typically needs about 7,000 to 9,000 blocks, depending on block size, wall height and design.
Roughly 10 standard sandcrete blocks cover one square metre of wall face, before allowing for wastage.
9-inch blocks are stronger and typical for external walls, while 6-inch blocks suit internal walls and lighter builds. Your engineer specifies which to use where.