Calculate your result
Quick answer
Calculate net wall area by subtracting openings from each section. Multiply it by bricks per m² for one leaf and the number of similar leaves, add waste once, then round up units and packs. For costs, use purchased bricks, your quoted prices and whole-job allowances. Labour is charged on the completed wall area once.
How it works
Use this free brick wall calculator for South Africa to estimate single or double-skin wall quantities and a budget from your own quotes. Add wall sections, subtract openings and choose actual brick dimensions or supplier coverage. Compare stock, maxi or cement bricks, then download your calculated result as a CSV that opens in Excel.
Formula
Wall budget = purchased units × quoted unit price + net wall area × completed-wall labour rate + entered allowances, then any additional VAT and contingency.
Assumptions and common mistakes
Check units, input values and the method before relying on an estimate. Review the existing tool notes and official sources below.
Formula
Wall budget = purchased units × quoted unit price + net wall area × completed-wall labour rate + entered allowances, then any additional VAT and contingency.
| Step | Calculation |
|---|---|
| Net elevation area | Section count × length × height − total openings |
| Required units | Net m² × one-leaf units/m² × similar leaves × (1 + waste/100), rounded up |
| Purchased units | Required units rounded to full packs when entered |
| Quoted budget | Purchased units × unit price + net m² × completed-wall labour + allowances |
| Tax and contingency | Add VAT only on the selected quote basis, then apply contingency |
How to use the brick wall calculator
Enter each wall section once, using length, height and the number of identical sections. Enter the total opening area across that section, not the opening size for just one repeated wall. Choose one leaf for single-skin quantities or two similar leaves for a double-skin quantity approximation. For dissimilar leaves, calculate each product separately.
Single brick wall calculator: count one leaf
Here, single means one masonry leaf or skin. It does not mean a universal wall thickness or a structural recommendation. Use actual face length and laid height with the intended mortar joint, or the supplier’s installed units per m². Brick width runs through the wall and is not the visible height.
Double brick wall and double-skin quantities
Two similar leaves need twice the unrounded one-leaf quantity before waste and pack rounding. Measure one elevation area, not both visible faces, then choose two leaves. For walls with different inner and outer products, separate calculations are needed. Bonds, returns, piers, corners, ties and cavity details require a project take-off; this tool does not approve a wall design.
Maxi and cement brick wall calculator inputs
Select a matching size example only when it describes your actual product, or choose custom dimensions. Maxi and cement brick names do not establish one universal unit size or coverage. Cement bricks and hollow concrete blocks are also different products. Use supplier units per m² for the exact unit and one-leaf laying arrangement where available.
How much to build a brick wall calculator: enter quotes
Material cost equals purchased units multiplied by the quoted unit price. Labour equals net elevation area multiplied by your quote per m² of the completed wall. Whole-job mortar, foundation, finish, delivery and other allowances are then added. A zero allowance means that cost has not been priced. It does not mean the work is unnecessary.
Worked quantity and cost example
A 10 m × 2.4 m section with 3 m² of openings gives 21 m² net. One leaf of example 222 × 73 mm faces with 10 mm joints and 10% waste requires 1,200 bricks, without pack rounding. At hypothetical R3 per brick, R200/m² completed-wall labour and R2,000 other allowances, subtotal is R9,800. These are arithmetic examples, not market rates.
VAT, contingency and double-skin labour
Use a consistent quote basis. Add your entered VAT percentage only when all entered amounts exclude it. If quotes already include VAT, add none. Contingency applies after any added VAT. The labour rate must cover the complete selected arrangement; choosing two leaves does not double a single-leaf labour quote automatically.
Brick wall calculator download for Excel
After calculating, select Download result CSV (Excel). The file contains the current wall sections, coverage assumptions, quantity breakdown and entered budget. Excel can open the CSV; if needed, import it with a comma delimiter. It is a snapshot of the result, not an Excel formula workbook. To change the estimate, edit the online calculator and download again.
Before ordering or accepting a quote
Confirm site measurements, brick specification, foundations, wall stability, openings, reinforcement, lintels, finishes, access and delivery with the contractor or responsible designer. The tool estimates entered quantities and prices only. It does not determine suitable wall thickness, foundation depth, structural compliance or current national building rates.
Last reviewed: 15 October 2026. Reviewed by the 99tools team. Editorial and corrections policy.
Quantity estimates only. Product suitability, wall stability and any structural design must be confirmed for the job.
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Brickwork guides
- How Many Bricks per Square Metre?
- What Does a Brick Calculator Need for Accuracy?
- Compare Brick Calculators: Cashbuild, Build it and BUCO
- How Much Does It Cost to Build a Brick Wall in South Africa?
- Maxi Bricks vs Stock Bricks: Quantity and Size
- How to Calculate Paving Bricks for a Driveway or Patio
- Interlocking Pavers: Coverage, Pallets and Supplier Checks
- Brick Mortar for Maxi Bricks and Thin Brick: What to Enter
- Single vs Double-Skin Brick Walls: Quantity Guide
- What Is Brickforce? Uses, Sizes and Roll Length
- Brickforce Prices: Compare Roll Quotes in South Africa
- Sand and Cement Mix Ratios: Mortar, Plaster and Screed
- How Much Sand and Cement per m² or 1,000 Bricks?
- Maxi Brick Prices and Pallets: How to Compare Quotes
- How to Measure Wall Plaster Area in m²
- Cement, Gypsum, Lime and Pool Plaster Quantities
Frequently asked questions
How do I calculate bricks for a single-skin wall?
Measure net elevation area, choose one leaf, apply the exact product’s units per m² and add your waste allowance. The tool rounds the requirement and any purchasing packs up.
How do I use a double brick wall calculator?
Choose two leaves for two similar products and enter the elevation area once. If the inner and outer leaves use different products or rates, calculate each separately.
How much does it cost to build a brick wall in South Africa?
It depends on the design, site and current quotes. Enter brick prices, completed-wall labour and all relevant allowances to calculate your own budget; this tool does not provide live market rates.
Can I calculate a maxi or cement brick wall?
Yes. Use the actual laid face dimensions and joint or the supplier’s installed coverage for one leaf. The product name alone does not determine units per m².
Can I download the brick wall calculator for Excel?
You can download the calculated result as an Excel-compatible CSV. It is a result snapshot, not a native Excel workbook with formulas or an offline calculator.
Does double skin double the labour cost?
The labour input is your quote per m² of the completed wall. Enter a quote for the selected single or double-skin arrangement; the tool applies it to net elevation area once.
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Helpful guides
What Does a Brick Calculator Need for Accuracy?
A brick calculator needs measured wall sections, openings, actual product coverage, masonry leaves, joints, waste and purchasing units. A product name alone.
Compare Brick Calculators: Cashbuild, Build it and BUCO
Comparing a Cashbuild, Build it, BUCO or Cem Brick estimate? Match the product, joints, openings, leaves and waste before comparing the total. 99tools is.
How Much Does It Cost to Build a Brick Wall in South Africa?
Build a brick wall budget from current quotes for bricks, completed-wall labour, mortar, foundations, finishes and delivery.