The standard for installing interior doors is 90 degrees or 180 degrees

It's all right. According to the structure inside you, you can open it at 180 degrees, and if you can't open it, you have to open it at 90 degrees, but the manufacturer's words are generally 180 degrees, and you will hit the wall when you open it, and it will become 90 degrees, but it will be more, generally more than 90 degrees.

According to the ergonomics, 90 degrees is the best, and it is easy to close the door with your hand.

There is nothing that can't be done. And now the interior door on the market is good, you can go to investigate,,I also saw an ecological door is very good,You can look for it.。。

180 degrees.

Generally, the closer the installation is to the door axis, the larger the door opening angle will be, and the opening angle can be adjusted in this way, but it cannot be adjusted, and the door block can be installed to prevent damage to the door closer caused by over-opening.

In the process of installing the wooden door, it is necessary to check whether the door leaf and each component are complete, whether the position matched by each component is accurate, and then assigned to the various positions connected between the door sleeve and the door leaf, and it must be consistent with the door opening.

Above 90 degrees is OK. If you can open it, you can open it bigger, and if you can't open it, you have to open it at 90 degrees.