Roll calculation

Measure the length and width of each room. That provides the scope of one room: 2 x length + 2 x width. If you know the ceiling height, you can calculate the amount needed looking at the table below. There a wastage of 10% is already taken into account. For larger patterns (wallpaper with offset match), you might expect even more waste.

Roll calculation of paper-backed wallpaper without offset in ft/sqft

Table 1. roll size: 1,74 ft x 32,97 ft = 57,37 sqft (-+3%)
Perimeter of the room, ft 20 33 39 46 52 59 66 72 79 85 92 98
Room height 7-8 ft 3 5 6 7 8 9 10 11 12 13 14 15
Room height 8-11 ft 4 7 8 10 11 12 14 15 16 18 19 20
Table 2. roll size: 1,74 ft x 49,21 ft = 85,63 sqft (-+3%)
Perimeter of the room, ft 20 33 39 46 52 59 66 72 79 85 92 98
Room height 7-8 ft 2 4 4 5 6 7 7 8 9 10 10 10
Room height 8-11 ft 3 5 6 7 8 9 9 10 11 12 13 14

 

Roll calculation of non-woven wallpaper without offset in ft/sqft

Table 1. roll size: 3,48 ft x 82,02 ft = 285,43 sqft (-+3%)
Perimeter of the room, ft 33 39 46-52 59 66-79 85-98
Room height 7-8 ft 1 2 2 3 3 4
Room height 8-11 ft 2 2 3 3 4 5
Table 2. roll size: 3,48 ft x 32,97 ft = 114,74 sqft (-+3%)
Perimeter of the room, ft 20 33 39 46 52 59 66 72 79 85 92 98
Room height 7-8 ft 2 3 3 4 4 5 5 6 6 7 7 8
Room height 8-11 ft 2 4 4 5 6 6 7 8 8 9 10 10

 

Roll calculation of paper-backed wallpaper without offset in m/sqm

Table 1. roll size: 0,53 x 10,05m = 5,33 sqm (-+3%)
Perimeter of the room, m 5 10 12 14 16 18 20 22 24 26 28 30
Room height 2,0 – 2,4 m 3 5 6 7 8 9 10 11 12 13 14 15
Room height 2,4 – 3,3 m 4 7 8 10 11 12 14 15 16 18 19 20
Table 2. roll size: 0,53 x 15,0m = 7,95 sqm (-+3%)
Perimeter of the room, m 6 10 12 14 16 18 20 22 24 26 28 30
Room height 2,0 – 2,4 m 2 4 4 5 6 7 7 8 9 10 10 10
Room height 2,4 – 3,3 m 3 5 6 7 8 9 9 10 11 12 13 14

 

Roll calculation of non-woven wallpaperwithout offset in m/sqm

Table 1. roll size: 1,06 x 25m = 26,50 sqm (-+3%)
Perimeter of the room, m 10 12 14-16 18 20-24 26-30
Room height 2,0 – 2,4 m 1 2 2 3 3 4
Room height 2,4 – 3,3 m 2 2 3 3 4 5
Table 2. roll size: 1,06 x 10,05m = 10,65 sqm (-+3%)
Perimeter of the room, m 6 10 12 14 16 18 20 22 24 26 28 30
Room height 2,0 – 2,4 m 2 3 3 4 4 5 5 6 6 7 7 8
Room height 2,4 – 3,3 m 2 4 4 5 6 6 7 8 8 9 10 10