The core material of a composite solid wood door is not made from logs, but rather from a large central panel that is bonded together using organic pressure. The exterior is then covered with paper or real wood veneer. The door features a full finger-jointed fir frame, with the surface and edges made from natural solid wood. This type of door typically costs around $500 and is sold as a semi-finished product without any paint. In contrast, a splint craft door also uses fir for the inner structure, but it is assembled in a latticework pattern. The surface is covered with three-plywood, while the edges are usually made from engineered wood. Its price is approximately $200, and the cost can vary depending on the quality of the three-plywood used. Like the other type, it is also sold as a semi-finished product without paint.
**Door Cover Installation**
1. The door set should be tightly connected, smooth, and free of visible seams. All fixed parts must be securely locked. The diagonal measurement of the door cover should be precise, with a tolerance of less than 1 mm for lengths under 2 meters, and up to 1.5 mm for longer doors.
2. After installation, the door should be perfectly vertical and horizontal, with a verticality tolerance of +2 mm and a horizontal straightness tolerance of +1 mm. The door cover should be secured with screws (at least 3 per meter) to the wall. The width of the door cover should be more than 200 mm, and a metal plate should be installed for added stability. The gap between the door cover and the wall should be sealed with expanding foam on both sides, evenly applied, and then allowed to dry before being trimmed flat.
**Socket Installation**
1. The casing should be evenly glued to both the door cover and the wall. The socket opening should be flat, tight, and seamless. After installation, the same side of the sleeve should lie in the same plane. If the wall is uneven, the socket interface must still be smooth. A slight camber is acceptable, with a tolerance of 1 mm. A sealing strip should be applied to the gap between the trim and the wall.
**Door Leaf Installation**
1. Once the door leaf is installed, it should be flat and vertical. The door leaf and the exposed surface of the door frame should be aligned. The door should open smoothly without any unusual noise and should operate freely.
2. The gap between the door cover and the door leaf should be 6 mm at the bottom and 2 mm on the other three sides, with a tolerance of ±0.5 mm for all gaps.
3. When the door is closed, it should fit tightly against the seal strip and remain stable without wobbling.
This guide provides essential steps for installing wooden doors, ensuring both functionality and aesthetics. Whether you're working on a solid wood door or a more economical option, following these instructions will help achieve a professional finish. Always make sure to use proper tools and materials for the best results.
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