Window frame. There is no door stop line at home door set. If it is door set of the bathroom, there is a door stop line in half a pack. The other side of door set is the inside of the bathroom. This part of the door opening is paved with wall tiles and the door stop line.
Door set is divided into two types: single bag and double bag. Door pocket of the door opening is to protect the corner of the wall, which is convenient for the connection between the door and the door opening and also has beautiful features. Generally, a single package is selected at entry door, kitchen door, bathroom door and balcony door, and the window is a single package. The one used in the window is called window frame, but the method is the same as that of door set. Let's talk about the construction method of single door pocket. 
1. Door set of the materials for home decoration are generally wooden, and the color and texture of the door are generally unified when choosing. Door set installation includes a top frame, two-wire side frame, door casing, mute strip, door stop line, hardware accessories used include fixed iron piece, expansion screws, etc. Before installation, check that these materials are complete.
Door frame line should be assembled in advance, align the side frame with the top frame, and fix it with screws. There are three frames of door set. In order to ensure vertical and horizontal assembly, a wooden square should be added below for temporary fixed adjustment. This wooden square does not need to be installed during installation.
2. Put the assembled door frame line into the door opening, hang a vertical pendant on the side of the opening, find the perpendicular line and mark it. Adjust the horizontal and vertical of the door frame, then adjust the gap between the door frame on both sides and the wall, and use wooden wedge to adjust and make the door frame straight and pad the door frame tightly. After the frame on the left and right sides is fixed, a through groove is opened at the joint, which is for the smooth installation of door casing. 
Use impact drill to punch holes at the door opening on the side frame and the top frame. Generally, the spacing is between 10-40cm. Then install expansion screws to fix the connection between the door frame and the wall.
If the door frame is fixed with iron sheet, punch the corresponding wall at prepared hole, connect and tighten it with self-tapping screws.
3. Fill the gap between the door frame and the wall with cement mortar, and now Styrofoam will be filled during installation. After Styrofoam is dry, remove the excess and then remove the temporary fixed wooden square below.
Install door pocket on one side of the single door casing, first apply glue on the back of the door casing, insert the door casing into the reserved through groove, and cut the angle of 45 degrees at the corner between the side and the top, door casing paste on the side of the door frame.
Between the door stop line and door casing, fix it on fastener gun nail, and then fix the mute Strip. The door stop line is pressed on the outside of door frame line. 
4. Window frame. There is no door stop line at home door set. If it is door set in the bathroom, there is a door stop line at half a pack, and the other side of door set is inside the bathroom, this part of the door opening is paved with wall tiles and connected with the door stop line.
The construction and installation of single door pocket is very simple, and the decoration is completed by Carpentry. If you install it yourself, pay attention to the size of the door opening. The size of door casing should be matched with the door opening to be installed smoothly.
