{1) inch in twelve )12).
Ladder rungs shall be dapped
8-06.
Unless otherwise shown on
into side rails.
FINISH CARPENTRY:
drawings or directed by Engineers,
finish carpentry work
shall conform to the following standards:
a.
General Requirements:
All work shall be
accurately and skilifully worked and set true to line,
level and plumb.
All work shall be substantially
reinforced and secured and shall be properly sanded.
b.
Opening
frames and trim shall be in one piece
ec.
Outside trim angles shall be mitred, and inside
d.
Butt end
from angle to angle.
Rails, moulds, etc.,
as long length pieces as are available.
shall be in
angles coped.
joints shall be beveled,
exposed ends
of aprons, rails, etc., returned on themselves and outside arris rounded off.
e.
Glue joints, where indicated, shall be glued
up with waterproof glue and held with clamps until set.
f.
Fastenings shall be blind where possible and
when not shali be set for putty.
g@Rough Hardware, including bolts, washers, nails,
screws, angles, plates, étc., shall, within the limits of
practical availability, be of aluminum or metal processed
to resist corrosion.
Rough hardware items other than as
above specified shall not be used in the permanent installations.
Size and type of fastenings and anchors shall
be as shown or required for the work.
8-07.
PLYWOOD PANELS:
a.
Plywood panels, of thicknesses noted shall be
installed at walls, ceilings and elsewhere as shown.
Panels shall be installed in as large sections as possible.
butt jointed, and face nailed over bearings.
Nailing shal
be at 6 inches on centers for outer edges of panels and
12 inches on centers at intermediate bearings. 1/4 inch
panels shall be secured with 4d nails, 3/8 inch and 1/2
inch panels with 6d nails and 3/4 inch panels with 8d nail:
Nails shall be set for putty in areas scheduled for paint
finish.
At interior angles and at intersections of walls
8-7