One, How to handle the dimensional error for non-standard door installation.
1、Contact distributors promptly for confirmation.,Understand remediation procedures。
2. If the production has already commenced, only size modifications are possible, and the associated costs will typically be borne by the customer.

3. If production has not yet commenced, adjustments to the dimensions can be made, and a one-time measurement fee may be added depending on the specific circumstances.
4. Pay particular attention to the fact that most non-standard doors are custom-made. Therefore, once the dimensions are measured, the door opening size cannot be arbitrarily changed, otherwise it will lead to installation problems.
Two. What is the typical tolerance for door dimensions?
1、When installing non-standard doors, it is mandatory to follow the technical specifications and ensure that the standard dimensions, center line, horizontal, vertical, and diagonal measurements are within the specified tolerances. The standard deviation for the height is ±5 mm; for horizontal distances greater than 2 meters, the deviation is ±2 mm; for horizontal distances less than 2 meters, the deviation is ±1 mm; for vertical distances greater than 2 meters, the deviation is ±3 mm; for vertical distances less than 2 meters, the deviation is ±2 mm; for diagonal distances greater than 2 meters, the deviation is ±3.5 mm; and for diagonal distances less than 2 meters, the deviation is ±2 mm.
2、The overlap width between the door and the frame is allowed to deviate by ±2mm.
3. The horizontal angle difference between adjacent doors and windows in the same set must be within ±2 mm.
4、The allowable deviation for the joint space between the hinges of the door and window frame is ±2 mm, ±1 mm.
5、The light transmission tolerance for the joint between sliding doors and window frames is ±1.5 mm to ±3 mm.
6. The horizontal alignment of sliding doors, windows, and frames, or the vertical edges of adjacent frames, is permitted to deviate by ±2 mm.