You can buy it in 1/2” sheets at a reasonable cost. I just checked Lowes, and although the didn’t have 1/2” they did have 3/4” and its about $14 a sheet. [LINK]
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum