WPC Door Frame 76mm for Interior Doors and Trim The 76mm profile is the slim interior frame, used where the reveal is narrow and the finish line has to look clean. This WPC door frame comes with a smooth and wood-like finish in natural wood colour, or an embossed wood grain when the project wants visible texture, and it can be coated with oil or latex paint when a colour match is needed. The body resists cracking, splitting, warping and deformation, and low maintenance costs