How to make a door box and install it yourself

A door frame is a frame consisting of bars with folds. How to make a box, in a nutshell, is not easy to describe. And its installation is no less difficult.

The door frame is fastened using spacer dowels or steel plates. To avoid distortions when installing the door frame, you must use a plumb or level. If the walls of the building are stone, then the boxes are fixed to the wooden stoppers with the help of nails. If the walls of the building are made of slabs, then the boxes are fixed with staples.

How to make a door frame? For this, boards of up to 60 mm thickness are used. Depending on the thickness of the walls choose the width of the board. The width of the box for one door should not exceed 1 meter. If you decide to install double doors, the width can reach up to 3 meters.

If you make a box with a threshold, then you need four wooden bars. A vertical bar is called a slope, and a horizontal bar is called a support. The upper horizontal bar is considered to be a door jumper. Slopes should overlap by about 10 cm horizontals. This ledge is cut by 45 degrees and called the head. How to make a box? First of all, this is a very technological process.

The choice of material, its further drying and processing are all links of the same technological chain. The bars are carefully processed, then depending on the thickness of the canvas, its dimensions are chosen.

1. Assembling the box.
Before installation, the upper and side harnesses are assembled, after which it is necessary to proceed with the installation of the box in the doorway. Put all three parts of the assembled door frame on the floor. Using 75-mm nails, nail the connected top and right side trim to the pre-installed door stop. As a rule, there should be a gap of at least 2 cm between the box and the wall. It will serve as a thermal insulation in the future. Due to the existing gap, the installation process of the box will be less difficult, because the horizontal and vertical surfaces will be installed correctly. In the same way, set the top and left strapping. Nail the bar between the parallel slopes of 50 x 25 mm, so that during the installation of the doors they remain parallel. And the question of how to make a box becomes irrelevant.

2. Installation.
In the doorway, install the box and gently place it in the center. After that it is necessary to check the perpendicularity and verticality levels of the installed elements. Using the level, plumb bob and gon, also check the level of the top bandage. If necessary, install a seal. To properly secure the box, you need to place any sealant under it where it touches the wall. After that it is necessary to check again the perpendicularity of the side elements. If the wall is stone, then fasten the box to the reinforcing bars by means of 65 mm non-hammered nails. Then remove the nailed bar and re-check the level of the upper strapping. Correct it if necessary. Thus, we managed to answer the question of how to make a box, to the full.