How much floor lacquer do you need?

Coat 1 seals the wood, coat 2 builds body, coat 3 adds wear resistance. Two coats can work on low-traffic closets; living rooms and kitchens should stay at three unless the product is a one-component high-build system saying otherwise.

25 m² × 3 coats ÷ 10 m²/L = 7.5 L before waste; with 10% → ~8.3 L — often two 5 L cans or three 2.5 L depending on what the shop stocks. First coat on raw wood may push toward 9–10 L total.

No — wall emulsion lacks abrasion and chemical resistance. Use a dedicated floor lacquer or oil. The calculator presets three coats and product-specific yield for that reason.

Light foot traffic is often 24 h; furniture after 72 h–7 days per label. Buying the right liter count matters less than respecting cure time — premature moves cause permanent marks you cannot sand out without recoating the whole room.