Estimate Area Dosage
Key formulas: Math.ceil(weightWithWaste÷p.perBucket); weight×(1+p.waste÷100); p.area×totalThk÷1000
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Paint quantity | Usage = area × coats ÷ theoretical spreading rate × (1 + wastage) | JGJ/T 29-2015 Specification for Construction and Acceptance of Building Coating |
| Spreading rate reference | Interior latex 8–12 m²/(L·coat); one primer plus two topcoats | Product technical datasheets |
| Substrate requirement | Moisture ≤10% (concrete/plaster), pH ≤10, flatness ≤2 mm/2 m | JGJ/T 29-2015 Section 4 |
| Wall total area | Walls = 2×(width+depth) × clear height − openings; or use coefficient method | GB 50854-2013 quantity rules |
基于粉刷面积、涂层厚度与遍数,结合材料密度与损耗率,计算涂料体积、重量与采购桶数,适用于墙面涂装备料。
墙面翻新、旧房刷漆前按面积与遍数估算腻子与涂料用量,快速得出采购量与预算区间。