Wallpaper for a 16 × 20 room
Short answer
A 16 × 20 ft room with an 8-ft ceiling needs about 11 rolls of wallpaper (standard US double rolls) — that's 31 full-height strips covering roughly 525 sq ft of wall after doors and windows. Pattern-repeat rolls need a little more.
Rolls needed
11
Paper cost
$440
Strips
31
Wall run
72 ft
Wallpapering a 16 × 20 room
A 16 × 20 ft room with an 8-ft ceiling has about 72ft of wall to cover. At a 27-inch roll width that's 31 vertical strips after one doorway, and a standard US double roll yields roughly 3 full-height strips — so plan on about 11 rolls for a plain paper. A pattern repeat means fewer strips per roll, so add one or two more. Always buy a spare from the same batch.
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Frequently asked questions
How many rolls of wallpaper for a 16 × 20 room?
About 11 standard US double rolls for the walls of a 16 × 20 ft room with an 8-ft ceiling — that's 31 full-height strips after one doorway. A wallpaper with a pattern repeat needs a little more.
How much does it cost to wallpaper a 16 × 20 room?
At about $40 per double roll the paper alone runs roughly $440 for a 16 × 20 room. Designer papers cost far more per roll; enter your real roll price in the calculator.
Should I add extra for a pattern repeat?
Yes. A straight or drop (offset) match forces every strip to start at the same point in the pattern, so each drop rounds up to a whole repeat and you get fewer strips per roll. The calculator adds this automatically once you enter the repeat.