Wallpaper Calculator
Project Settings
Select your measurement units and wallpaper specifications
Room Dimensions
Enter the dimensions of your room
Installation Options
Choose which surfaces to wallpaper and waste allowance
Wallpaper Requirements
-1
Rolls Needed
-51
Square Feet
Wall area:0 ft²
Total surface area:-51 ft²
Base rolls needed:-0.9
Waste allowance:0 rolls (15%)
Total linear feet:-33 ft
Wallpaper Details
Selected Wallpaper:
Standard Wallpaper
20.5" × 33' rolls
56.4 sq ft per roll
Pattern Information:
Small Repeat (1-6")
Small patterns, minimal waste
Pattern repeat: 4" • Effective roll length: 32.7'
Installation Coverage
4 strips per roll • -1 total rolls
Installation Guidelines
Wallpaper Types:
Standard Wallpaper
Traditional paper or vinyl wallpaper
20.5"
Wide Width Wallpaper
27-inch wide wallpaper for faster installation
27"
Double Roll
Two standard rolls for larger projects
20.5"
Peel & Stick Wallpaper
Removable wallpaper, easy DIY installation
20.5"
Pattern Matching:
No Repeat
Solid colors, no pattern matching needed
None
Small Repeat (1-6")
Small patterns, minimal waste
4"
Medium Repeat (6-12")
Medium patterns, moderate waste
9"
Large Repeat (12-24")
Large patterns, significant waste
18"
Professional Tips:
- • Always order 15-20% extra wallpaper for waste and mistakes
- • Book match patterns from the same production run
- • Prepare walls properly - clean, smooth, and primed
- • Use wallpaper primer for better adhesion
- • Start in least visible corner and work around room
- • Cut wallpaper 2-3 inches longer than needed
- • Use level and plumb line for straight installation
- • Allow adhesive to "book" (soak) for proper activation
- • Smooth out air bubbles immediately
- • Clean excess adhesive before it dries