Grade 12
Horizontal Postforming Grade (HGP) Outside radius to ½" (12.7mm) and cove radius to 3/16"(4.8mm). Postformable to permit bending on suitable commercial postforming equipment. Use whenever forming is desired for decorative or functional purposes in interior applications. Optimum postforming temperature is 325˚F (163˚C).
Grade 20
Vertical Postforming Grade (VGP) Outside and inside radii to 3/8"(9.5mm). A forming grade designed for vertical or light duty horizontal interior applications requiring radiused edges. Thinner than Grade 12; excellent for postformed radii. Installed panel width not to exceed 24" (609.6mm) maximum.
Grade 10
General Purpose Grade (HGS). Recommended for horizontal and vertical interior applications. Available on Architectural Door Program and select sizes as Make-to-Order (MTO).