How many blocks for a two-storey villa? A worked estimate
Estimate villa blocks from wall lengths, heights and openings, with a two-storey example and a purchase checklist you can review with your contractor.
Read the guideMEASUREMENTS. MATERIALS. BETTER DECISIONS.
The building & finishing quantity guide
Work through block counts, plaster volumes, tile cartons and paint coverage. Every guide explains the measurements, the assumptions and a worked example you can open and change in the calculator.
Block calculator
Open calculator10, 15 or 20 cm blocks: read the size before counting
Understand block thickness, face dimensions and mortar joints, and see why three different thicknesses can give the same piece count.
Read the guideBoundary wall block quantity with gate and column deductions
Estimate blocks for a boundary wall from masonry lengths and heights, deduct its gate without double-counting columns, and separate plaster and cost.
Read the guidePlaster calculator
Open calculatorHow many cement bags for 100 m² of plaster?
Calculate cement and sand for 100 m² of plaster and see how thickness, volume ratio and estimating assumptions change the material requirement.
Read the guidePremixed plaster bags vs cement bags: quantity calculation
Calculate ready-mix plaster bags from kg/m²/mm consumption and compare a 50 m² example with site-mixed cement and sand without confusing the bag types.
Read the guideTile calculator
Open calculatorHow many tile cartons for a 4 × 5 m room?
A 20 m² room can need 15 or 20 cartons of the same tile size. Follow the area, waste and carton coverage calculation before placing an order.
Read the guideTile waste allowance: straight, diagonal and staggered layouts
Compare tile waste assumptions using one 20 m² room, and understand how cuts, carton rounding and skirting affect the quantity to buy.
Read the guideBathroom tile quantity: wall and floor area to cartons
Work out tiles for a 3 × 2 m bathroom, deduct its door, convert tile sizes to square metres and keep separate wall and floor products in the order.
Read the guidePaint calculator
Open calculatorHow much paint for a bedroom? Litres and cans explained
Work through a 4 × 4 m bedroom with doors, windows and an optional ceiling, then convert the paint requirement to actual litre-sized packs.
Read the guideHow to calculate wall area for painting from room dimensions
Calculate wall square metres from room length, width and height, deduct doors and windows, and separate the ceiling before estimating paint litres.
Read the guideEDITORIAL NOTE
Prepared by the KSA Home Calc team. Content and defaults await professional review before launch. Updated: .