formatting link
' Foam Sheet, Closed Cell, Material Polyethylene Vinyl, Thickness 1/8 In, Width 12 In, Length 12 In, Finish Smooth Cellular, Color Charcoal, Backing Type Plain, Temp. Range -70 to 180 F, Thickness Tolerance
+/-0.250 In, Width Tolerance +/-0.250 In, Length Tolerance +/-0.250 In, Tensile Strength 50 PSI, Firmness @ 25% Deflection 0.40 PSI, Stretch Limit 200%, Density 2 lbs./cu. ft., Package Quantity 2 '
Thickness 1/8 In, Width 12 In, Length 12 In
Thickness Tolerance +/-0.250 In, Width Tolerance +/-0.250 In, Length Tolerance +/-0.250 In,
So it's 1/8" thick plus or minus a quarter inch!
:-)