The outer frame of the door panel is made of solid wood and is reinforced internally in the area that receives the lock. The interior of the door consists of fireproof and soundproofing materials of international standards with certificates. The door panel is covered on both sides with MDF-lined sheets. Around the frame and the door there is a special heat-expanding rubber (for sealing in case of fire). In addition, it has a special windshield that seals the door from the fire for 30-60min. The door has 3 adjustable BT hinges, one of which has a spring for automatic closing-reset.
The product as a whole is certified according to international & European Standards.