Best choice for bedroom, bathroom, or closet - warm look and bright colors, high-quality materials, and soft opening. The door is made of solid pine wood. The thickness of the glass - is 1/4", frosted opaque glass.. the Thickness of the door - is 1 3/5". The door is not pre-drilled for the hardware. The set includes a door slab, fully finished. No formaldehyde is environmentally friendly using only the latest eco-friendly materials. The company requires the safest materials. We take care of your family. The sound attenuation door's 1 3/5” thick solid composite wood construction yields a 30% noise reduction over standard doors. The construction door is manufactured from a single piece of composite wood and will give several generations of normal usage with minimal care.