WHAT IS INCLUDED: Door Slab, thickness 1 9/16"; Trims; Frame; Hinges; Passage Handle. The door is constructed from solid pine wood with a honeycomb core and finished with an eco-veneer coating. It is not pre-cut for hardware and is not pre-attached to the frame. Assembly of the frame and trims is required. Minimal rough opening can be calculated: door width + 2"; door height + 1 1/2". Thickness of the door slab is 40 mm or 1 9/16". SOLID CORE: Crafted from laminated wood and reinforced with a honeycomb core for the strength and feel of solid wood, while remaining lightweight and stable. CIPLEX BY SARTO: Exceptional film coating perfectly applied over laminated wood with a honeycomb and wood core. NO FORMALDEHYDE: Environmentally friendly using only latest eco-friendly materials. Company requires use of only the safest materials. We care about our planet, the environment and you and your loved ones. Sarto Doors are Ideal for use in hospitals and childcare centers. SOUND ATTENUATION: Door's 40mm thick solid wood with honeycomb construction yields 30% noise reduction over standard doors. CONSTRUCTION: The door is engineered from a solid, seamless wood structure with a durable honeycomb core, ensuring long-lasting performance and minimal maintenance for generations to come.