Calc Dosage 1
Key formulas: ((p.tLen+p.gap)×(p.tWid+p.gap))÷1000000; Math.ceil(net×(1+p.waste÷100)); Math.ceil(total÷p.perBox)
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Tile quantity | Pieces = area ÷ tile area × (1 + wastage); straight 5%, diagonal 10%, irregular 12% | Industry construction practice |
| Tile quality | Porcelain E≤0.5%, stoneware 3%<E≤10%; breaking strength ≥1300 N (wall tiles ≥600 N) | GB/T 4100-2015 Ceramic Tiles |
| Adhesive usage | Thin-bed with notched trowel 3–5 kg/m²; thick mortar bed 15–20 mm | JC/T 547-2017 Adhesives for Ceramic Tiles |
| Tiling acceptance | Flatness ≤2 mm/2 m, lippage ≤0.5 mm, hollow ratio ≤5% per tile | GB 50210-2018 Standard for Acceptance of Building Decoration Quality |
结合瓷砖尺寸、铺贴缝隙与损耗率,精确计算所需瓷砖片数与采购箱数,避免材料短缺或浪费。