
Drywall Sheet Sizes: Why '1/2 Inch' Isn't Half an Inch
Drywall sheet sizes are not one number: 4x8 is 1220x2440 mm, '1/2 inch' is nominal 12.7 mm vs EN 12.5 mm, and thickness sets framing spacing.
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Drywall sheet sizes are not one number: 4x8 is 1220x2440 mm, '1/2 inch' is nominal 12.7 mm vs EN 12.5 mm, and thickness sets framing spacing.

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