Stone Veneer Calculator — m, m², cost
How to use this calculator
Select a stone type, enter wall dimensions in meters or centimeters, subtract openings, add corner meters, and set waste percentage. Results show flat area (m²), corner meters, mortar bags, metal lath rolls, and total cost.
Stone Types — Natural thin veneer, Manufactured stone, Fieldstone, Ledgestone. Coverage per pallet varies by type.
Corners — Subtract corner m × 0.23 m from flat area.
Mortar & Lath — Optionally estimate mortar bags and metal lath needed.
Saved Calculations
| Time | Type | Net m² | Flat m² | Boxes | Corners m | Cost |
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Stone Veneer Quantity & Cost Estimating (Metric)
Adhered thin stone veneer is ordered by the flat box (m²) and by the metre of outside corner. Corner units wrap about 0.23 m² of face per linear metre, so this tool subtracts that wrapped area from the flat field before sizing flat boxes — counting corners and flats from the same gross area over-buys. Net area is the gross wall minus window and door openings; add 10% waste for simple elevations and 15% where cutting around openings and returns is heavy.
How to Use
Enter wall length and height (m, cm or mm), the total opening area in m², and the outside corner run in metres. The stone type sets box coverage (0.5–1.0 m² per flat box). Veneer sits on a scratch coat over metal lath; size the structural backup with the block wall calculator or the brick wall calculator.
Formulas
Net = (L × H) − openings. Flat field = Net − (corner m × 0.23). Flat boxes = ⌈Flat field × (1 + waste) ÷ box coverage⌉. Corner m = corner run × (1 + waste). Setting mortar runs about 2 bags (40 kg) per m²; verify bag yield with the mortar & grout calculator. Metal lath covers roughly 2.5 m² per roll.
FAQ
Do I deduct openings? Yes — only the veneered face is bought, so subtract full opening areas. Why order corners separately? Corner units are L-shaped, priced per metre, and cannot be cut from flats. Footing or veneer ledge? Size the supporting concrete with the concrete bag calculator or a concrete grade beam. Work follows Eurocode 6 and EN 998 for setting mortar.
On install day
Three line items estimators miss on stone veneer. Corners run short first — corner units are priced per metre and ship 2–2.5 m per box, so a chimney with four 3-m runs (12 m corner) is 5–6 boxes before waste; under-ordering corners stops the job because flats cannot be cut to an L. Substrate — over timber frame you need a WRB plus diamond metal lath fixed every 150 mm into studs (Eurocode 6 §6.5); over CMU or poured concrete the scratch coat bonds directly and lath drops off the takeoff. 2025 budget — manufactured flats run €60–120/m² and corners €40–80/m delivered; natural thin veneer is €110–220/m². Always add a separate line for the scratch and setting bed mortar and for the structural backup — sized with the block wall calculator or retaining-wall calculator when the veneer faces a freestanding wall.
