Wallpaper Calculator
Calculate how many rolls of wallpaper you need for your room.
Room Dimensions
Openings to Exclude
Standard door ~21 sq ft (3x7 ft)
Standard window ~15 sq ft (3x5 ft)
Wallpaper Details
0 for solid/random patterns, check label for patterned wallpaper
10-15% recommended for beginners
Rolls Needed
0
Total Wall Area
0 sq ft
Minus Openings
0 sq ft
Wallpaperable Area
0 sq ft
Coverage per Roll
0 sq ft
Usable Coverage (with waste)
0 sq ft
Strips per Roll
0
Total Strips Needed
0
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How to Measure for Wallpaper
Tips for Accurate Measurement:
- Measure at the widest points of your walls
- Round up to the nearest half foot
- Include small areas like behind radiators
- Buy all rolls from the same batch/dye lot
Pattern Repeat Explained:
- No repeat (0"): Solid colors, textures, random patterns
- Straight match: Pattern aligns horizontally across strips
- Drop match: Pattern aligns diagonally, uses more paper
- Larger repeats = more waste, order extra
Pro Tips:
- Always order 1-2 extra rolls for mistakes and future repairs
- Check if the pattern is pre-pasted or requires paste
- Vertical stripes make rooms look taller
- Horizontal patterns make rooms look wider