Best choice for bedroom, bathroom, or closet - warm look and bright colors, high-quality materials, and soft opening. The door was made of solid pine wood with a honeycomb. The thickness of the door - is 1 3/5". Door is not pre-drilled for the hardware. Assembly of frames and trims is required. Door works with all swing directions. Rough opening can be calculated: “door width” + 2”; “door height” + 1.5”. Set includes door slab; - trims (2.95” wide); - frames (for wall thickness from 4” to 5”); - passage lever/knob; - non-mortise hinges; no formaldehyde environmentally friendly using only latest eco-friendly materials. The company requires the safest materials. We take care of your family. Sarto Doors are recommended for applications in hospitals, childcare centers, and network catering. Sealing gum German company Deventer - has a special profile that allows protecting your home from dust, and makes a cozy and quiet atmosphere around every day. On another side it allows you to save 35 % more heat and save up to 20% on the bill. 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.