Moisture content is the key.
The moisture content of wood is a very important index. Wood with moisture content of 8%~ 12% should be used for making doors and windows, and wood with decay and moth-eaten phenomenon should not be used.
Manufacturing materials of plywood doors
Sandwich door is the most widely used wooden door in modern decoration. The door core material can be solid wood squares or blockboards. Plywood generally includes laminated plywood and seven plywood. If the door needs varnish, it should be coated with decorative plywood with natural wood grain.
Various decorative effects
The most basic style of plywood door is panel door. On the basis of plate doors, patterns can be circled with solid wood lines to make various effects, and multi-layer plywood can carve composite solid wood lines to make imitation solid wood doors with good decorative effect.
Mass production of door core materials
There are more choices for mass-produced door core materials. For example, some doors are cut into small sections with Vitex negundo, which can not only reduce the cost, but also improve the impact strength of the doors. But this kind of door is made by special machinery, which is not suitable for manual and on-site production.