The bottom standard of the distance from a door to the top door.

The bottom standard of the distance from a door to the top door.

The joint width between the bottom of the wooden door and the ground varies according to the installation position of the wooden door and whether there is a bottom frame. The specific provisions are as follows:

1. When the door leaf has a lower frame, the normal and advanced standard clearance limits are 3-5 mm and 3-4 mm respectively;

2. When there is no lower frame, the joint limit value between the door leaf and the ground depends on the installation position of the wooden door. The specific requirements are as follows:

1) external door: the limits of ordinary and advanced standards are 4-7mm and 5-6 mm respectively;

2) Interior door: the limit values of common and advanced standard rabbets are 5-8mm and 6-7 mm respectively;

3) Toilet door: the normal and advanced standard stop values are 8- 12mm and 8-10mm respectively;

4) Factory gate: the limit value of the stop is 10-20mm.