How to install the interior door?

Indoor door refers to the door installed at the entrance of an indoor room, which is the floorboard of all room doors. So how to install the interior door? Let's talk about its installation method: (1) mark the construction auxiliary line on the wall, and use 3mm, 5mm, 12mm or 15mm, 18mm as the base respectively (according to the wall surface, put the door cover frame line into the wall hole, and the edge of the door frame forms a 45-degree angle with the top of the door frame. (3) Determine the hinge installation position of the door frame, mark the corresponding position on the door leaf, and reserve appropriate clearance. 2-3 mm slots are machined on the door leaf, and the hinges are fixed with the provided screws. Temporarily fix the door leaf in the corresponding installation position and adjust it to the accurate position; Mark the fixed position of the hinge on the door frame, process the hinge groove on the door frame, connect the door leaf with the hinge and fix the hinge. (4) Install the doorframe keyhole plate box and keyhole plate to install the door leaf. The installation method of 4 o'clock indoor door is introduced above. I hope my answer is helpful to you. Thank you.