$61.99 4X8-1/2 RED OAK V.CORE PLYWOOD B4 WPF / 5 PLY *C.A.R.B. 2 COMPLIANT | TWPerry
STandard 3/4 4x8 sanded plywood from Menards for $40, 1/2 is $30 - http://www.menards.com/main 
Roseburg 3/4 x 4 x 8 Fir Tongue-and-Groove Plywood Sturd-I-Floor at Menards®
