Calculadora de Papel Tapiz
Las entradas usan unidades estadounidenses (ft/in/lb y USD); se muestran equivalentes métricos cuando están disponibles.
Calcule rollos, área y desperdicio.
Room Details
Área de pared (minus openings)—
Pattern Factor de desperdicio—
Rollos necesarios—
Costo total—
Cómo calcular Wallpaper
Fórmula: Wall area = perimeter × height − (doors × 20 + windows × 15). Add waste para pattern repeat: 0" repeat = 10%, 12" = 15%, 24"+ = 25%. Rolls = ceil(adjusted area ÷ usable per roll).
Pattern Repeat Waste
| Repeat | Factor de desperdicio | Example |
|---|
| 0" (random) | 10% | Stripes, textures |
| 6-12" | 15% | Small florals |
| 18-24" | 20% | Medium patterns |
| 25"+ | 25-30% | Large murals |
Consejo: Buy all rolls from the same dye lot. Keep unopened rolls para potential returns — most stores accept returns within 30-90 days.
FAQ
How many rolls para a 12×12 room?
48ft perimeter × 8ft = 384 sq ft − 35 openings = 349 sq ft. At 56 sq ft/roll = 7 double rolls (with 10% waste).
What is a double roll?
27" × 33ft = ~74 sq ft total, ~50-56 usable after pattern matching.
Pattern repeat impact?
Larger repeats = more waste. 24" repeat can need 20-30% more rolls.
Wallpaper over old wallpaper?
Not recommended. Remove old wallpaper first para best adhesion and finish.