Renovation Material Calculator
Estimate tile count, flooring area, paint volume or wallpaper rolls.
Pre-filled values are examples, not personal facts or current local rates. Replace them before calculating.
Calculation method and references
Tiles round up by area; paint = area × coats / coverage; wallpaper uses whole strips and pattern repeat.
Method reviewed: 2026-09-08
Your entries remain in this browser. No account, upload, tracking of form values or persistent saving. Export only when you choose.
{"fields":[{"key":"mode","label":["材料類型","Material"],"type":"select","options":[["tiles",["瓷磚","Tiles"]],["floor",["地板","Flooring"]],["paint",["墻漆","Paint"]],["wallpaper",["壁紙","Wallpaper"]]],"value":"tiles"},{"key":"area","label":["凈施工面積（平方米）","Net application area (m2)"],"type":"number","value":20,"min":0.01,"max":1000000,"step":"any","show":{"mode":["tiles","floor","paint"]}},{"key":"tileWidth","label":["瓷磚寬（毫米）","Tile width (mm)"],"type":"number","value":600,"min":1,"max":5000,"step":"any","show":{"mode":["tiles"]}},{"key":"tileLength","label":["瓷磚長（毫米）","Tile length (mm)"],"type":"number","value":600,"min":1,"max":5000,"step":"any","show":{"mode":["tiles"]}},{"key":"coats","label":["涂刷遍數","Coats"],"type":"number","value":2,"min":1,"max":10,"step":1,"show":{"mode":["paint"]}},{"key":"coverage","label":["單遍每升覆蓋面積（平方米）","Coverage per litre per coat (m2)"],"type":"number","value":10,"min":0.1,"max":100,"step":"any","show":{"mode":["paint"]}},{"key":"perimeter","label":["需貼墻面的總橫向長度（米）","Total wall width/perimeter (m)"],"type":"number","value":16,"min":0.01,"max":100000,"step":"any","show":{"mode":["wallpaper"]}},{"key":"height","label":["墻高（米，含裁切余量）","Strip height including trim (m)"],"type":"number","value":2.8,"min":0.01,"max":100,"step":"any","show":{"mode":["wallpaper"]}},{"key":"rollWidth","label":["每卷寬（米）","Roll width (m)"],"type":"number","value":0.53,"min":0.01,"max":100,"step":"any","show":{"mode":["wallpaper"]}},{"key":"rollLength","label":["每卷長（米）","Roll length (m)"],"type":"number","value":10,"min":0.01,"max":1000,"step":"any","show":{"mode":["wallpaper"]}},{"key":"repeat","label":["對花周期（米，無對花填 0）","Pattern repeat (m, zero if none)"],"type":"number","value":0,"min":0,"max":10,"step":"any","show":{"mode":["wallpaper"]}},{"key":"loss","label":["額外損耗 %","Extra waste %"],"type":"number","value":10,"min":0,"max":100,"step":"any"}],"title":["裝修材料用量計算","Renovation Material Calculator"],"engine":"renovation","scope":["材料數量初算，不是結構、消防、電氣或承重Design；實際下料與損耗請讓施工方復核。","Quantity estimate only, not structural, fire, electrical or load-bearing design."]}