How to install a double-leaf interior door: a sequence of actions

A double-leaf interior door model is most often used in the following cases:

• the door opening is large;
• the room is small.

Double doors are often used insmall rooms and rooms with wide doorways. Compared to a solid door leaf, such a structure takes up much less space when open. This product is also popular due to its appearance. The door leaf can be hinged or sliding. Sometimes you can find swinging models, but they are not popular. Installation of such a structure is not particularly difficult. Tools and materials that will be needed for:Tools for installation of interior doors.

• construction foam;
• a puncher, a chainsaw or a Bulgarian;
• bars;
• self-tapping screws;
• milling machine;
• crossbars;
• racks;
• spacers made of wood;
• metallic profile;
• electric drill;
• building level;
• angle brackets;
• plumb bob;
• knife;
• cellophane;
• paint tape.

How to prepare an opening for installing double-leaf doors with your own hands?

Before installing such a structure, you will needprepare an opening for it. If you need to dismantle the frame of a previously installed door, you can do this using a hammer and several screwdrivers of different sizes. After this, the opening should be cleared of excess plaster mix and construction foam. To expand the doorway, you need to use a grinder or a hammer drill. In this case, everything will depend on the material of the wall. You can reduce the opening to the required size using a plaster mix. The walls should be prepared for final finishing and leveled as much as possible - the door frame should not adjust to unevenness and go out of plane.Drawing of a double-leaf swing door.After this, the door opening is calculated. You can find double-leaf interior doors on sale that do not fit the dimensions of a standard opening. Its width can be calculated using the following scheme: the width of the door leaf, the gap between it and the bar, and the thickness of the frame are summed up. The result obtained must be multiplied by 2 and a few millimeters must be added to it for the embedded parts. As an example, we will consider a standard door width of 60 cm and a frame thickness of 2.5 cm: (600 + 3 + 25) * 2 + 4 = 1260 (mm). The height of the opening can be calculated in the same way. However, in this case, it will be necessary to take into account the gap between the installed structure and the floor base, which is approximately 1-2 cm: 2000 + 10 + 25 + 15 = 2050 (mm). In the process of making the threshold, you will need to add up the height of the door, two thicknesses of the frame and the gap between it and the door leaf, which is multiplied by 2. Return to the table of contents</a>

How to properly assemble the door frame?

Return to Contents</a>Installation and assembly of the finished box Some ofdoor options are sold complete with fasteners and frame elements that are prepared for assembly. In this case, the installation process will not take much time. You will need to decide on the opening side of the structure, measure the length of the racks, taking into account the unevenness of the floor base. In accordance with its height, you need to saw off the lower part of the racks. Next, dowels are installed in the holes that are located in the cuts on the side parts of the frame racks. After this, all the elements are pulled together as much as possible and fixed with corner brackets. For this, there are recesses on the back of the frame. Door blocks can be supplied prepared for installation, the design provides grooves for the hinges. However, in some cases there are no such grooves. Then you will need to perform some actions to cut them out. Return to the table of contents</a>How is the box installed? When assembling the box, the first thing you need to do is adjust the block to the dimensions of the canvas.Scheme for manufacturing a door frame.Its dimensions are two widths of the door leaf and 6 mm for possible gaps. When calculating the height of the frame, 10 mm must be added to the dimensions of the entire structure for clearance at the bottom and 3 mm for clearance at the top. The top bar and the ends of the posts that adjoin it must be cut at an angle of 45 °. Next, you need to assemble the door frame. Its corners are connected with several self-tapping screws, the length of which should reach the central part of the second bar. Two fasteners are screwed at an angle from the side rack element up, the third is placed between them, but screwed at the top. After this, the hinges are installed. The location of the fastening and turning mechanism must be marked on the door. To do this, measure 20 cm on the end part of the door leaf and attach the loop. Its outline will need to be outlined with a simple pencil or a sharpened knife. At this point, a groove must be selected to the required depth. It can be prepared with a chisel, but in order for the recess to be made accurately, you will need to use a milling cutter. With this tool, you can do the job quickly and without errors. Through the hinge plate, which is laid in the recesses, you need to mark the places for the fasteners with an awl, and then drill holes for them. Their diameter should be 1.2-1.4 mm smaller than the diameter of the fasteners. Using the same method, you need to make a recess for the deadbolt on one of the sashes.Sectional view of door frame installation.Next, you need to put the doors on the frame, mark the place for the hinges on the bars, and then make a notch on them in the same way as on the canvases. You can find fastening mechanisms on sale that do not require preparatory work. However, they are used quite rarely, since experienced craftsmen have some doubts about such devices. On all the sashes and pillars of the structure you need . Then install the crossbar on one of the canvases. Return to the table of contents</a>

How is the installation of the box in the opening?

During the installation of the box in the opening usingthe building level will need to be checked for accuracy of its placement. The structure is secured to the wall with long screws (approximately 8-10 cm). The first thing you will need to do is secure the side posts. Wooden spacers should be mounted between them and the wall. The resulting space around the frame should be filled with construction foam. It is necessary to take into account the level of its expansion (1:5). The door block elements will need to be protected from the ingress of construction foam. After it hardens, you need to carefully remove the excess with a knife, and then close the gap with a casing. You will need to hang the door leaf in the appropriate place with your own hands, after which you need to drill a hole at a small angle for the deadbolt locking plate. Return to contents</a>

How to mount a double-leaf interior door?

Return to Contents</a>Installation of guide elementsInstalling a sliding door.Sliding doors are a good replacement for swing doors. They can be used to free up some space, which is important if you are renovating a small apartment. When choosing double-leaf doors, you will need to pay attention to the material they are made of. If one guide element is enough for a wooden structure, then a heavy glass structure will require the installation of several devices. The lower guide element must be planned so that the structure can be deepened into the floor. It must be attached before finishing the floor base. The horizontality of this element must be checked with a building level. To determine the position of the upper guide element, which is attached first, the door must be leaned against the opening and a horizontal line drawn along its upper part. In this case, you will need to take into account that there should be a gap of 12-14 mm between the floor base and the door leaf. You can immediately put a gasket of the required thickness under the structure. The beam on which the guide element will be installed must be placed horizontally. Otherwise, the doors will not be able to open or will slide to the side. The beam is fixed with dowels or self-tapping screws. Everything will depend on the wall material. In addition, you can find models with guide elements on sale that are fixed to brackets or directly to the ceiling structure. It is necessary to step back a few millimeters from the wall, after which the guide is installed on the lower part of the beam using screws. It must be set strictly according to the level. Along the upper end part of the canvas, you need to measure 30-40 mm on both sides, and then screw the brackets with self-tapping screws. If a lower guide element is mounted, then a recess of 20 mm deep must be made in the lower part of the door structure. Its width should be a few millimeters larger than the width of the lower bar, which is made in the form of a knife or flag. This process is quite difficult to perform in domestic conditions, so it is recommended to choose a lower guide element, which consists of a profile or several bars. Return to contents</a>How to hang the canvas correctly?Sliding door assembly diagram.Rollers with screws for support are installed in the upper guide element. Limiters are mounted on its ends. The door leaf must be installed on the flag of the lower bar and hung on the screws with brackets. The nuts for fixation must be slightly tightened. The door must be adjusted vertically, taking into account the gap above the floor base. The second door must be hung in the same way. Next, using a wrench, it is necessary to fully tighten the nut and lock the door leaf on the rollers. After this, it is necessary to foam the installed structure. Before starting this stage of installation, it is necessary to prepare the base so that in the future there are no difficulties associated with the removal of construction foam. The doors must be carefully covered with cellophane, and the frame must be pasted over with masking tape. After this, the space between the wall and the door frame can be foamed. The construction foam will dry for several hours. This material must have a low expansion coefficient, otherwise the door frame will quickly be damaged. At the end, decorative strips and fittings are installed. Installing a double-leaf interior door is quite simple, but it is important to follow the sequence of actions.</ ul>

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