[Silver Hardware Prehung French Door Collection] 1-Lite Clear Glass White Solid Core Double Prehung French Door with Sliver Handware kit & Ready-to-Assemble JambSolid core Made of solid CARB P2 certified MDF, 70% more sound dampering than hollow core, energy efficient to lower heating and cooling costs. Upgraded glassis constructed from 4 mm tempered clear glass, this glass is both safe (SGCC certified) and provides privacy (it filters light but does not allow visibility through it). Finishedpaint grade finished surface ready to use (no paint or stain required), paintable and stainable, the surface is harder