Crown Molding Calculator
Calculate crown molding length needed for a room. Subtract deductions for openings.
How to Use the Crown Molding Calculator
- Enter room length and width.
- Enter total deductions for openings.
- Click Calculate.
- Add 10% waste for ordering.
クイックリファレンス
| 変換元 | 変換先 |
|---|---|
| Small room (3×3 m) | 12 m perimeter |
| Medium room (4×5 m) | 18 m perimeter |
| Large room (5×7 m) | 24 m perimeter |
| 45° mitre cut | Standard inside/outside corner |
| Standard length | 2.4–3.6 m pieces |
| Waste allowance | +10% |
使用例
- •Planning crown molding installation.
- •Ordering trim for a renovation.
- •Comparing molding profile costs.
- •Estimating labor for a contractor.
計算式
Perimeter = 2 × (Length + Width). Molding = Perimeter − Deductions.
よくある質問
What are deductions?
Any openings at ceiling level like arches or open areas where molding is not needed.
How much extra should I buy?
Add 10% for mitre cuts and waste.
Is it free?
Yes, all calculators are completely free.