How to measure the door opening of the interior door?

1.Measurement of the entrance door. If it is found that the owner has not ordered the entrance door cover, the customer should be reminded and signed for confirmation.

If there is an entrance door, you must pay attention to the cooperation with the security door. After calculation, it is generally necessary to specify the width and height of the door leaf; Specifies the thickness of the door sleeve plate. The principles are:

1) Do not make the door sleeve exceed the edge of the anti-theft door; 2) Do not affect the opening of the security door; 3) For the wooden door style that opens left and right, be sure to indicate and let the customer sign for confirmation. Try to make the wooden door and the anti-theft door open in the same direction; 4) If the entrance door is a mother and son door, the proportion of the wooden door and the mother door should be harmonious and consistent with the proportion of the anti-theft door and the mother door. 5) If the thickness of the wall deviates greatly, it needs to be signed with the owner for confirmation.

6) If there is a change in the installation method due to special circumstances, it is necessary to confirm and sign with the owner.

1.Actually measure the width and height of the doorway. To measure whether the upper, middle and lower three places of the door hole are consistent, if inconsistent, the narrowest place shall prevail, but the error shall not exceed 20.

2.For the error of more than 20mm, the wall hole should be corrected, and the correction can be corrected with cement mortar or lime.

3.The thickness measurement of the door opening wall should also measure the upper, middle and lower three places, to see whether the thickness of the wall is the same, but also to see whether the thickness of the left and right walls and the wall on the top of the door opening is the same, not the same to take their maximum value, but the error shall not exceed 5.

4.If the error in the thickness of the wall is more than 5, it needs to be corrected.

5.If the wall is a T-shaped wall, you need to use blockboard to make a fake wall with a width of 50-60mm to place the door sleeve line. The thickness is the same as the thickness of the wall.

6.The minimum thickness of the door opening wall is not less than 80. The strength of the low and 80mm size door frame is not very large, and the support for the door is not enough. If it is less than 80mm, the thickness of the wall needs to be thickened to more than 80mm.