Material & Waste Assistant
Building Material Calculator
Calculate exact material quantities including recommended allowances for cutting waste. Save up to 70% by buying surplus construction leftovers in your area.
Tiles & paving parameters
Calculation result
Net surface area:20 m²
Cutting & trimming allowance (+10%):+2 m²
Total to purchase (gross):22 m²
Recommended packs to buy:16 packs
Net areaWaste (+10%)
Why buy and sell surplus on Zůstalo.cz?
Save 40% to 70%
Materials from builders and contractors are brand new in original packaging, at a fraction of store prices.
Buy exact quantities needed
Short by 3 m² of tiles or 2 bags of mortar? No need to buy full pallets at retail stores when you can buy the surplus.
Zero waste building
Every salvaged bag of plaster, brick, or insulation roll avoids going to waste.
Leftover building materials from your project?
Do not throw them away. List them on Zůstalo.cz — free up space and recover cash.