12CCPPLY
1/2″ (12.5MM)CCA TREATED PLYWOOD
12F
4′ X 12′ 5/8″ FIREGUARD GYPROC
12FACD
***SO ONLY**1/2″ G1S FACTORY
12G
4’X12′ 1/2″ GYPROC SHT ULTRALITE
12G1SF
1/2″(11MM) G-1-S FIRPLY
12G54
1/2 X 54″ X 12′ GYPROC
12HB35
1/2″ 3×5 HARDI BACKER
12L
4′ X 12′ 1/2″GYPROC LITE CEILING
12MB
12′ MAIN BEAM WHITE METAL
12SANDP
1/2″ (12 MM) SANDED PINE
12STAS
1/2″(12.5MM) STANDARD PLYWOOD
13684
4 L GREEN END CUT PRESERV