How the math works.
Wallpaper hangs in vertical strips. Our rolls are 19 inches wide with 18.5 inches of effective coverage once the pattern is matched, so the number of strips is your wall width divided by 18.5″, rounded up. Each strip must run the full height of the wall in one piece, so the roll length you order is the next standard panel height at or above your wall height — panels come in 2-foot steps from 2 to 18 feet. The material you order is strips × roll width × panel height, which is always a little more than the bare wall area. That difference is your built-in trim allowance.
The calculator works for any brand’s wallpaper — open “Roll specs” and set your roll’s width and effective coverage if you’re not using ours.
How much wallpaper do I need for a 10 × 8 ft wall?
Seven strips: 120″ of width ÷ 18.5″ effective coverage = 6.5, rounded up to 7. Order seven 8-foot rolls — about 89 square feet of material for an 80 sq ft wall.
Do I need to add 10% for waste?
Standard panel heights already give you headroom above the wall. On orders of four or more strips, keep one spare roll for pattern matching and trim mistakes — that’s the classic “10% extra” rule done honestly.
What does “effective coverage” mean?
A 19″ roll covers 18.5″ of wall once adjacent strips are aligned so the pattern repeats cleanly. Always calculate with the effective number, not the raw roll width.
How much does wallpaper cost per square foot?
Fringe Wall Co materials run $4.50 (traditional paste-the-wall), $5.95 (peel and stick), and $6.75 (LUXE peel and stick) per square foot of ordered material. The calculator shows your total for each.
Does peel and stick need the same amount as traditional?
Yes — the roll count is identical for every material. Material choice changes the install method and the price, never the math.
Can I use this calculator for another brand’s wallpaper?
Yes. Open “Roll specs” in the calculator and enter that brand’s roll width and effective coverage — everything else recalculates automatically.
