=109.= =Glazing= was formerly included in the painter’s contract, but
as it is now customary and more convenient to oil or paint and glaze
the sash at the mill when they are made, the glazing is included in the
joinery specifications, and is not considered as a separate subdivision
of estimating work.
In measuring glass, take the dimensions between rabbets each way when
the panes are rectangular; if irregular or circular in form, take
the extreme dimensions, and consider the panes rectangular. It costs
about 1½ cents per square foot of light to glaze a window. This price
includes the cost of putty.
Polished plate glass is used extensively for store-front windows and
also for glazing window sash in fine work. There are three qualities:
French plate, and two grades of American plate, which may be obtained
in various sizes up to 8 feet wide and 14 feet long. The cost of plate
glass is estimated by the aid of a price list that gives the cost
of the various sizes. This list is furnished by dealers and remains
the same from year to year; it is known as the _standard list_. The
fluctuations are provided for by means of a discount, which is the same
for all sizes of glass.