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Wallpaper Estimator
Use the form on the right to receive a price estimate
It is very important to properly calculate how much material
you will need to complete your wallpapering job. If you don’t order enough
paper, you will have to stop the job unfinished. Also, upon reordering,
there is a possibility that you will get a different run number with different
dye lots. If you order too much paper, there is a good chance that you’ll
be charged a restocking fee for returned rolls. Hence, it is essential
to properly calculate your wallpaper needs.
It is important to understand a couple of concepts that
are fundamental to wallpapering. The first thing is wallpaper comes in
several different sizes. Most popular are American Rolls and European
Rolls. American Rolls are approximately 27 inches wide and Metric Rolls
are about 21 inches wide. This makes a substantial difference in the amount
of square footage you'll get out of one roll. Secondly, the REPEAT pattern
is very important to completing your job. As wallpaper passes over the
print rollers, it repeats itself. Because of this repeating pattern, you
must align the wallpaper to the repeating elements in order for the wallpaper
to look right. Also, any excess must be trimmed away from the top and
bottom edges. Longer repeats require trimming away more of the paper and
the result is more unusable wallpaper. The amount of paper that is actually
used and applied to the wall is called usable yield.
There are a number of different ways to estimate how much
wallpaper you are going to need. One particular method Hi-Grade uses is
called USABLE YIELD and is derived from measured square footage.
To use the chart below, you will need to know how much
square footage of wall space you are going to cover. We suggest you do
not subtract windows and doors from the total unless they make up a significant
amount of area. You will also need to know the repeat of the paper you
intend to use. Use the chart below to determine how much usable square
footage your pattern is going to yield. Divide your measured square footage
of wall space by the usable yield to determine how many rolls of wallpaper
your project is going to require.
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USABLE
YIELD per SINGLE ROLL
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REPEAT
LENGTH
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AMERICAN
ROLLS (27")
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EUROPEAN
ROLLS (21")
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Random (0)
– 6"
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32 sq. ft
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25 sq. ft.
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7 – 12 inches
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30 sq. ft.
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22 sq. ft.
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13 – 18 inches
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27 sq. ft.
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20 sq. ft.
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19 – 23 inches
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25 sq. ft.
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18 sq. ft.
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To provide an example, let's say you want to do a 10 x
10 room with 8 foot high ceilings.
You have looked through the books at Hi-Grade/Sappano’s
or elsewhere and really like two patterns. The first pattern looks like
outerspace and you want to put this on the ceiling. The back of the pattern
page provides you with the following information; the pattern has a repeat
of 16 inches and is made in American Rolls. The other pattern is a beautiful
stripe for the walls. The repeat on the stripe is randomized and comes
in European Rolls.
Your 10 x 10 room has 320 (= 4 walls *10 ft. long * 8
ft. height) square feet of wall space and 100 (= 10 * 10) square feet
of ceiling area. The chart indicates that usable yield of the outerspace
pattern is 27 square feet. Dividing 100-sq. ft. by 27-sq. ft., usable
yield tells you that you will need 3.7 single rolls of the outerspace
pattern for the ceiling. On pattern two, the stripe has no repeat and
the usable yield is 25 square feet. 320 divided by 25 gives 12.8 single
rolls. Most consumer wallpaper is available only in double rolls, so you
will have to get 4 single rolls (2 double rolls) of the outerspace pattern
and 14 single rolls (7 doubles) of the stripe to ensure you have enough
wallpaper to complete the room.
The chart below is provided by SUNWORTHY Wallcoverings.
It will also give you an estimate of the amount of paper you will need
but it is not as flexible for figuring odd sizes. Since wallpaper is sold
in double roll bolts, their chart gives the number of double roll bolts
per room.
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Distance
Around Room in Feet
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20 to 27
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20 to 27
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34 to 40
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41 to 47
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48 to 54
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55 to 60
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61 to 67
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68 to 74
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75 to 81
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Ceiling
Height
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Number
of Double Roll Bolts
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8’
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4
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5
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6
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7
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8
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9
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10
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11
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12
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10’
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5
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6
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7
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9
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10
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11
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12
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14
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15
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12’
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6
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7
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9
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10
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12
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13
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15
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16
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18
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| Note: No allowance
has been made for window and door openings. Number of bolts
required may be less than the chart indicates |
Using the same room above, the perimeter of the room is
40 feet and the ceiling is 8 feet high. According to this chart, you will
need six double rolls or 12 single rolls. The ceiling space might be considered
to be a 10-foot wall with a 10 foot ceiling height. That gives you three
double rolls or six single rolls. A slightly different number than the
first estimating method.
48" & 54" Commercial Coverings
If you have ever been involved with a commercial application,
you may have seen 48" or 54" goods. These large size bolts are measured
and sold by the yard. To estimate the number of yards needed to cover
a given area, divide the measured square footage by 12 for the 48" size
and 13.5 for 54".
Borders
Borders can give your rooms a great look. Instead of measuring
square footage, simply measure the perimeter of the room or the area you
are bordering. Allow a little extra for matching or to compensate for
walls that are not straight. Borders are typically 5 yards long (15 feet).
Divide the length in feet of the area to be bordered by 15 to determine
how many rolls you will need.
Use the form on the right to receive a price estimate
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