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White board is 1/4" to 3/4" in thickness. Green board contains oilbased additives in the paper that provides moisture resistance. It's often used in bathrooms or high humidity areas. Firecode or Type "X" has different thickness and multiple layers of wallboard. Perlite, vermiculite, and boric acid are added to improve fire resistance.
The differences are in what's added to the basic drywall, fire retardants and anti mildew products mainly.

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12y ago

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