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What we stock from National Gypsum
- 5/8" Type X in 4×8, 4×9, 4×10, 4×12
- 5/8" Type C by order
- 1/2" Type C in 4×8, 4×12
- Glass-mat sheathing
- Glass-mat tile backer, 1/2" and 5/8" 4×8
Stocked
Gold Bond Fire-Shield is the 5/8" Type X that goes out most days. The 1/2" fire-rated board is Type C, and 5/8" Type C is available when the assembly calls for it. Send the UL number with your order and we will match the board to the assembly.