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Plywood, OSB, Underlayment & Other Sheathings

CDX Plywood Sheathing

*Maximum roof span/maximum floor span

Gold Bond eXP Extended Exposure or G-P Dens-Glass Gold Gypsum Sheathing

  • Mould-resistant exterior gypsum panel.
  • Weather-resistant for up to six months.

Huber Advantech® or L-P TopNotch 450 Series OSB Underlayment

  • High-performance structural flooring panel.
  • Engineered to provide more water resistance and stability than plywood and conventional OSB.

Oriented Strand Board (OSB)

*Maximum roof span/maximum floor span

Oriented Strand Board Underlayment

  • Designed specifically for single layer floor construction.
  • Tongue and grooved long edges.

*Maximum floor span

Plywood Underlayment

  • Southern Pine.
  • Made with exterior glue.
  • Faces plugged and touch sanded.
  • Tongue and groove long edges.

*Maximum floor span

Polystyrene Foam Sheathing

Thermax™ Foam Sheathing

Thermo-ply™ Sheathing

  • Structural-Grade-Red laminated fiberboard wall sheathing requires no corner bracing on studs 16" on center.
  • Lightweight.
  • Good for draftstopping attics.
  • Contributes to LEED certification.
  • Click here for more information.