Paint Calculator South Africa 2026 (Dulux & Plascon Wall Litres, Coats & Drum Sizes)
Calculate wall and ceiling paint litres, number of coats, and standard South African can sizes (1L, 5L, and 20L drums). Factors in door and window deductions with a 10% wastage buffer.
Paint Calculator South Africa
Methodology
Calculates net surface area to paint by subtracting standard door openings (0.9m x 2.1m = 1.89 m²) and residential windows (1.2m x 1.2m = 1.44 m²) from gross wall perimeter area. Multiplies by the specified number of coats (default 2) and applies a 10% safety buffer for roller spillage and wall porosity. Divides by standard spreading rates (Plascon Double Velvet, Dulux Luxurious Silk, Prominent Paints: 8–10 m²/L) and outputs recommended retail can combinations.
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User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
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Formula basis
The formula is shown openly and no country rate is inserted automatically.
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Your estimate
AfricalHub is an independent private platform not affiliated with any government agency. Calculations are for educational planning only. Verify official filings with the relevant revenue authority or a qualified professional.
South African Paint Packaging & Coverage Guide
| Pack Container Size | Coverage (1 Coat) | Coverage (2 Coats) | Best Application |
|---|---|---|---|
| 1 Litre Can | ~9 m² | ~4.5 m² | Feature strips, window frames, small touch-ups |
| 5 Litre Tin | ~45 m² | ~22.5 m² | Single bedroom, bathroom, or kitchen |
| 20 Litre Drum | ~180 m² | ~90 m² | Whole interior, exterior facades, open-plan living areas |
Sources
User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
Frequently asked questions
How many coats of paint should I apply to interior walls in South Africa?
Two coats are the standard recommendation for interior and exterior walls in South Africa. If painting over raw plaster, a primer/undercoat plus two topcoats is required. A third coat is only needed for drastic color changes.
What is the standard coverage rate for Dulux and Plascon paints?
Premium South African acrylic PVA paints (like Plascon Double Velvet, Dulux Luxurious Silk, and Prominent Premium Satin) have a spreading rate of 8 to 10 square meters per litre on sealed, smooth surfaces.
What standard paint drum sizes are sold in South Africa?
Paint in South Africa is sold in 1 Litre cans, 5 Litre tins, and large 20 Litre drums. Buying 20L drums offers the cheapest cost per litre for whole-house repainting.