=108. Papering= is usually figured per roll, put on the wall. The paper
is generally 18 inches wide, and is in 8-yard rolls; double rolls are
16 yards. On account of waste in matching, etc., it is difficult to
estimate very closely the number of rolls required, but an approximate
result may be obtained as follows: Divide the perimeter of the room
by 1½ (the width of paper in feet); the result will be the number of
strips. Find the number of strips that can be cut from a roll, and
divide the first result by the second; the quotient will be the number
of rolls required. No openings less than 20 square feet in area should
be deducted, in order to compensate for cutting and fitting at such
places. About 15 per cent. should be added to the area to allow for
waste. The border, whether wide or narrow, is generally figured as one
roll of paper.
The cost of paper is extremely variable, ranging from 15 cents to $6
per roll; the average cost is probably 25 to 50 cents per roll, for
ordinary houses. Paper hanging costs from 10 cents to $1 per roll,
according to quality, with strips butted.