James,
Mechanical Drawing:
D&RGW Card 8629 File C-256 Date 11-28-1940
Siding:
S.G. & N.G. box and refrigerator cars, engine cab lining & roofing.
Clear and better, kiln dried, flat grain, Douglas Fir except where
otherwise specified.
Tongue & groove
Stock length: 8' / 9' / 10' / 16' / 18' / 20'
Rough cut: 1" X 4"
Finished: 25/32" X 3-1/4" (HOWEVER,.. add 1/4" for the tongue portion
of the finished product. (i.e. total width 3-1/2" visible width when
applied to car 3-1/4")
Beveling of each outward facing side: 3/16" wide X 1/8" deep
Roofing & Lining:
S.G. & N.G. box and refrigerator cars as well as ends of S.G. &
N.G. stock cars
Also tongue & groove, Douglas Fir (wood quality same as for sides)
Rough cut: 1" X 6"
Finished: 25/32" X 5-7/16" (1/4" for tongue, visible width 5-3/16")
NOT BEVELED
John T.