PASSPORT PRODUCTS

INTERIOR DOOR

Manufacturer:

LLC "SKY DOORS", Russia, 8 tel. (84

Operating instructions

1. The door leaf is a product of normal moisture resistance and is intended for use only in dry heated rooms with an air temperature not lower than +10°C and not higher than +40°C and a relative air humidity of 30-70%. Retain the plastic packaging for as long as possible until installation. Before installing doors, especially in winter, it is recommended to bring them indoors for at least a week for acclimatization.

2. Do not install doors near heating or heating devices. Sudden temperature fluctuations environment may lead to cracks in the coating and warping individual elements canvas, boxes, platband.

3. Avoid rough mechanical impact on the product.

4. During operation, to preserve appearance products, it is recommended to periodically use products to care for natural wood furniture.

5. To care for the door surface, do not use cleaning products containing abrasive materials and strong chemical substances, as well as solvents. Use only neutral furniture care products in accordance with the instructions for their use.

6. When using interior doors in a bathroom, it is necessary to completely ventilate the room after using the bathroom for its intended purpose.

WARRANTY TERMS

1. The manufacturer establishes a warranty period of 12 months from the date of sale, but not more than 24 months from the date of manufacture.

2. Identified product defects recognized as arising through the fault of the Manufacturer are eliminated at his expense.

Warranty obligations do not apply to defects in the door leaf, frame elements and trims resulting from:

Unqualified installation;

Transportation from the trading organization to the Buyer;

Violations of the Rules for storage, installation and operation.

ATTENTION!!! We warn you that the color and texture of the wood are natural. natural characteristics and cannot be completely identical in the delivered batch of goods. Therefore, carefully consider the choice of double-floor canvases

Technical characteristics of the product and their configuration are current at the time of publication and may be changed by the SKY DOORS factory without additional notice.

We thank you for your purchase and hope that the interior doors you purchased will be worthy decoration Your interior.

CONTENTS OF DELIVERY

Package Included:

Product passport with installation instructions

Door leaf

Original packaging

ATTENTION!!! The number of molded elements (door frame, platband, extensions, connecting and trim strips) is determined individually for each door leaf.

TRANSPORTATION AND STORAGE

1. When storing and transporting doors, measures must be taken to protect them from mechanical damage, contamination, moisture, exposure to precipitation and direct sunlight.

2. Transportation of doors is possible in covered vehicles all types in accordance with the current rules for the transportation of goods.

3. It is strictly forbidden to store packaged doors in premises where construction and repair work with a high moisture content is being carried out, for example: wallpapering the premises, whitewashing, plastering work, screed device, etc.

4. During storage, it is necessary to avoid direct contact with the door for a long time. sunlight, which can cause uneven fading of the door tint and paintwork.

5. It is prohibited to store doors near heating devices, in a draft, or in unheated rooms. Sudden changes in ambient temperature can lead to the appearance of cracks and bending of individual structural elements.

INSTALLATION INSTRUCTIONS

ATTENTION!!! It is better to entrust the installation of the door block to a qualified specialist. If you decide to install the door block yourself, please read our recommendations

1. Door leaves are available in standard sizes and can be installed without additional materials into standard doorways according to SNiP.

2. Assemble the door frame, on flat surface, with a gap of 3 mm around the perimeter of the blade. Cut the frame elements at an angle of 45° and secure them together with screws or a dovetail key.

3. Install hinges and lock. Sampling must be done manually using an electric milling tool, take into account that the design of the canvas is not uniform and in processing it differs significantly from solid wood. The hinges should be located at a distance of mm from the edge of the canvas, the lock mm from the floor to the center of the handle.

4. Install the frame (if necessary, using extensions 95/135/195) in the doorway level using a mounting block, distribute the gaps evenly (the gap should not exceed 40 mm).

5. Close the blade and install 3 mm thick spacers between the blade and door frame with a pitch of 200 mm

6. Protect the door leaf and frame from foam, and fill the gap between the door frame and the opening around the entire perimeter with foam. The canvas can be opened no earlier than after 4 hours.

7. After complete curing polyurethane foam, cut off the excess and install the trim.

ATTENTION!!! Fittings for installation (locks, hinges, latches) must be selected for panels with a thickness of 37 mm or more

The catalog of interior doors from the Krasnoderevshchik factory presents a collection of classic and modern solutions for interior decoration, including new items for 2018.

You can download the catalog in electronic form (.pdf).

Warranty certificate on the cabinetry door

Passport for door block contains information about the rules for operating doors from the Cabinetry factory.

You can download your passport in electronic form (.pdf).

Catalog of doors model line 700

A booklet about the new collection of interior doors 2017 from the Cabinetry factory offers you to familiarize yourself with the 700 model line. A description of the advantages and features of the 700 model line, photographs of new door models, types of finishes and other useful information.

Cabinetry door catalog 2017

The 2017 catalog of interior doors invites you to familiarize yourself with the list of products manufactured by the Cabinetry company. general information about the factory, description of advantages, the lineup interior doors 2016, ready-made solutions and a lot of useful information.

You can download the catalog in electronic form (.pdf).

Cabinetry door catalog 2016

The 2016 door catalog offers you to familiarize yourself with the list of products manufactured by the Krasnoderevshchik company. General information about the factory, a description of the advantages, the 2016 model range of interior doors, ready-made solutions and a lot of useful information.

You can download the catalog in electronic form (.pdf).

Cabinetry door catalog 2015

Door catalog for 2015.

You can download the catalog in electronic form (.pdf).

Catalog of special doors

Special doors - fireproof, soundproof, vandal-proof, moisture-resistant, chemical-resistant and others.

You can download the catalog special doors in electronic form (.pdf).

You can download the price sheet in electronic form (.pdf).

The price list shows prices for cabinetry products for all model lines, including prices for door moldings.

You can download the price sheet in electronic form (.pdf).

The 2013 catalog presents a new collection of interior doors from our factory, ready-made solutions for design and construction organizations, as well as a special offer for DIY retail chains.

Presented to your attention detailed information for each model line, the unique advantages of our products.

You can download the catalog in electronic form (.pdf, 11.5 MB).

Interior catalog

The catalog presents brief information about the factory, photographs of all produced door models are posted, and a brief description of their advantages is given. In addition, the catalog contains some manufacturer's recommendations for installing doors.

You can order a catalog (free of charge) by providing information about yourself and your postal details in the letter.

The catalog is sent by mail, or received directly from JSC FSSI "Krasnoderevshchik" at the address: Russian Federation, Chelyabinsk, st. Mechanical, 40. Order catalog

You can also download the catalog in electronic form (.pdf, 2.8 MB).

Directory

You can get acquainted with the factory's products, including the latest innovations, in the new Buyer's Guide, which presents information in the form of illustrations and brief description characteristics of door models. Ask for the directory at all retail outlets where our products are presented.

These technical specifications apply to wooden interior door blocks (hereinafter referred to as doors), manufactured by LLC"ХХХ", Cheboksary.

Doors designed for residential and public buildings.

These technical specifications apply to the following types of doors (according to GOST 6629):

- DG - solid doors;

- BEFORE - glazed doors.

An example of recording products in other documents and (or) when ordering:

“Wooden interior door DG TU 5361-001-ХХХХХ-2012”

List of reference and normative documentation of these technical specifications presented in Appendix A.

1. TECHNICAL REQUIREMENTS

1. General requirements

Doors must comply with the requirements of GOST 475, the requirements of these technical conditions and be manufactured according to the working drawings of the manufacturer.

1. Main parameters and characteristics
2. The appearance and color of the doors must correspond to the standard samples approved by the head of the manufacturer.
3. The nominal dimensions of doors must comply with the standards given in Table 1.

Table 1

1. Maximum deviations from the nominal dimensions in curvature should not exceed± 4 mm.
2. Doors, their assembly units and parts must have the correct geometric shape.

The deviation of door leaves from flatness should not exceed

2 mm in height, width and diagonal.

The deviation from the perpendicularity of the sides of the door leaves should not exceed 2 mm per 1 m.

In corner tenon joints of boxes, the height of the sag should not exceed 0.5 mm, and in corner connections panel straps - 0.3 m. Gaps in the shoulders of tenon joints of boxes should not be more than 1 mm.

Sagging at the ends of tenon joints in canvases is not allowed, and in boxes there should not be more than maximum deviations from the nominal length of parts.

1. The frame should be made of spliced ​​pine beams, onto which 6 mm thick MDF sheets are glued on both sides.
2. Doors must be lined with thick PVC films

(0.3 - 0.4) mm.

1. The wood moisture content of door parts should be 8± 1%.
2. Connections of door parts must be made in accordance with the requirements of GOST 9330.
3. The door frame, lined with MDF on both sides, is pressed in a hot double-sided press for 20 minutes.

After processing and applying the appropriate patterns, the canvas is covered with PVC film and kept in a vacuum membrane press.

Assembly door leaf It can also be produced using the dry method on dowels with fastening at four corners using tie-down screws.

1. When covering doors, glue is usedKhomakol 133 according to TU 2252-007-59759080-04.
2. Roughness of the front surfaces of doors under opaque finishing coating should not be more than 200 microns, for a transparent finishing coating - no more than 60 microns (in accordance with the requirements of GOST 7016).

Fringes and burrs in instrument sockets must be cleaned off.

1. On the front surfaces of doors with decorative cladding sheet or film materials, the size and number of scratches, dents, stains, as well as unevenness of gloss and dullness must correspond III class according to GOST 24404. Mechanical damage door surfaces (scratches, dents, abrasions) are unacceptable. Foreign inclusions under facing material- are unacceptable. Irregularities are unacceptable.
2. The types, sizes, finishes and workmanship of fixtures and fasteners used for doors must meet the requirements of the standards for these products and parts and indicateaccording to the customer's specifications.
3. Devices, flashings, layouts and other parts must be secured with screws, pins and nails in accordance with the requirements of the standards for devices and this standard.

The screws must be screwed in. Driving screws and the ends of fasteners coming out onto the surface of the doors is not allowed.

1. Glazing should be done using silicone and special inserts.

Glass used for glazing doors must comply with GOST 111, GOST 5533 and GOST 7481.

1. The surfaces of the glass must be clean; dirt, oil stains, chipping of the glass, chips, protrusions of the glass edges, and damage to the corners of the glass are not allowed.
2. Requirements for materials and purchased products
3. Materials and products purchased for the manufacture of doors must comply with the requirements of GOST 475 and current regulatory documents.
4. Materials purchased for the manufacture of doors, including foreign-made materials, must have a certificate of conformity or other document confirming quality.

Polymer and synthetic materials used to make doors must have a sanitary-epidemiological certificate and fire safety certificates.

1. The basis of the door leaf is a frame made of spliced ​​pine beams (humidity 8± 1%), onto which MDF sheets (fibreboards for construction and household needs according to TU 5536-009-44779728-2003) are glued on both sides by hot pressing using industrial glue (Homakol 133 according to TU 2252-007-59759080-04) 6mm thick.
2. The door leaf is covered with PVC film (GOST 24944) with a thickness of 0.3-0.4 mm. The ends of the canvas are also covered with PVC film on all four sides. Glazed doors are equipped with glass (GOST 111 / GOST 5533 / GOST 7481) thickness 4 mm (8 mm), inserted through the upper groove of the door leaf.
3. Completeness
4. Doors are supplied to consumers in original packaging, separately door leaves and separately frames and trim. By agreement with the consumer, doors and door stock can be equipped with related fittings.
5. Doors must be fully factory-ready final finishing, not requiring additional work, installed, glass and sealing gaskets.
6. The delivery package should include: a quality document (label on the package) and instructions for operating the doors, including installation recommendations.

1. Marking
2. Each product is marked with a waterproof marker or theselabel indicating the name of the manufacturer, nameproduct, date of its manufacture and (or) order number, sign(stamp) confirming acceptance of the product by technical control lem.

Labeling must be clear and easy to read. The method of marking must ensure its safety during transportation and storage.

1. The door devices included in the product must be marked in accordance with the regulatory or technical documentation for these products.
2. It is allowed to display the markings in accompanying document on the supplied batch of doors, and on each door indicate only its designation.
3. The accompanying document for the supplied batch of doors must indicate:

- name and (or) trademark manufacturer;

- name and (or) symbol doors;

- batch number and date of manufacture;

- Number of doors;

Door size;

- designation of these technical conditions.

1. Transport marking - according to GOST 14192.

Transport marking of glazed doors must include the handling sign “Fragile. Carefully".

It is allowed to apply other handling signs and information inscriptions that ensure the safety of doors during loading and unloading operations, transportation and storage.

1. Package
2. Doors must be packaged in accordance with the manufacturer's drawings. Packaging must ensure the safety of products during long-term transport and repeated storage transfers in compliance with safety precautions.
3. The finished fabric is packaged in corrugated cardboard(GOST R 52901) on all 4 end sides.
4. Before transportation, door leaves must be securely secured with strips, ties or other devices that do not cause damage to the products.
5. Packed doors can be laid horizontally or installed vertically on wooden pallets in accordance with GOST 9557, GOST 9570, GOST 22831, GOST 26381 and fastened in accordance with GOST 21650. The height of the door stack is no more than 1000 mm. The design of the pallet provides for installation in two tiers.
6. By agreement with the customer it is allowedthe use of other types of packaging materials, as well as the delivery of doors unpackaged.

6. MANUFACTURER WARRANTY

1. The manufacturer guarantees that the doors comply with the requirements of these technical specifications, subject to the conditions of transportation and storage established by these technical specifications, as well as installation instructions.
2. The warranty period is 1 year from the date of completion of installation work.

1. General information

1.1. Real products - wooden window and door balcony blocks of single design with double-glazed windows, are a modern design certified in the GOST R Certification System for use in standard or individual construction.

1.2. Results of certification tests of wooden window and door balcony blocks with double-glazed windows manufactured by 33 Du6a LLC.

1.2.1. Reduced heat transfer resistance coefficient (): for products with a 40 mm double-glazed window (4-16-4-12-4) - 0.706, which corresponds to class “B1”. Scope of application: residential and public buildings and structures.

1.2.2. Noise absorption for products with double-glazed windows is 26 dB.

1.2.3. The air permeability of products with a double-circuit seal corresponds to class “A”.

1.2.4. Reliability of window devices and hinges - 20,000 cycles without destruction, damage or change in shape.

1.3. Locking fittings from AUBI (Germany), installed on these products, can provide four types of opening: rotary, tilt, tilt-and-turn and depressurizing (night ventilation), which prevents “fogging” of the glass.

1.4. The design of the products ensures highly effective sealing of rooms (no drafts through loose joints), as a result of which it is necessary to regularly ventilate them for hygienic reasons, as well as to remove excess humidity, which manifests itself in the form of “fogging” of glass, to prevent the formation of white corrosion on the fittings underneath. exposure to high humidity.

High humidity leads to wood swelling and subsequent surface defects. Lack of ventilation (ventilation) increases the likelihood of wood being damaged by fungi.

2. Completeness

The order package includes:

2.1. Finished goods with installed double-glazed windows, sealing gaskets and locking devices.

2.2. Handles with fastening screws.

2.4. Other additional elements(additional profile, window sill boards, ebbs, etc.), stipulated by the order conditions.

2.5. Real passport.

3. Operating rules and maintenance

You purchased window system that requires maintenance. To ensure that your windows remain reliable for many years to come, you should follow these guidelines:

Open (close) the doors smoothly, without jerking;
- for rotary (normal) opening of the sash, it is necessary to turn the handle from the “closed” (down) position 90 degrees to the horizontal position;
- to tilt the sash like a transom, you need to turn the handle from the “closed” (down) position 180 degrees to the up position;
- for depressurization (“night” ventilation), it is necessary to turn the handle from the “open” position 45 degrees upward.

Attention!

Turn the handle only when the sash is completely closed! When the sash is open (turned or tilted), the handle is locked against rotation.

If, when the sash is open, it is simultaneously tilted (by pressing the leaf spring and turning the handle upward), it is necessary to return the sash to its normal position as follows:

Press the leaf spring located on the side of the sash towards you at the level of the handle;
- set the handle to the up position;
- close the sash like a transom and turn the handle, without releasing the spring, 90 degrees to a horizontal position;
- release the leaf spring, close the sash completely and turn the handle to the “closed” (down) position.

If it is necessary to press the valves more tightly (“night” ventilation), turn the locking rollers with a 6-sided (S = 4 mm) wrench so that the mark on the locking rollers faces towards the seal.

Attention!

Installation of the product should be carried out after finishing finishing work (pouring floors and plastering walls) associated with changes in humidity in the room.

Manufactured windows and doors are painted with special environmentally friendly, deeply penetrating primers and paints. Soil components protect the wood surface from various pests and rot. Thick-layer paints and glazes applied by spraying protect the surface from external influences and moisture penetration long time, at the same time making it vapor-permeable, which allows maintaining equilibrium moisture in the wood. Such weather-resistant coatings require special care.

Complete stabilization of the paint coating occurs two to three weeks after painting, so during this time, with direct exposure to humidity, the texture of the wood may appear and white spots may appear on the surface of the window. As the humidity decreases, the stains disappear and subsequently do not appear. This is due to the high hygroscopicity of natural wood.

A distinctive feature when painting with water-based paint systems is a slight rise in the wood structure with the penetration of water into the product.

In addition, when priming window products made of wood glued to micro-tenons With transparent primers, slight variations in color may occur on the surface of the product due to the different densities of the wood blocks that make up the product.

However, on operational properties These factors do not influence the paintwork.

Attention!

Depending on environmental influences, preventive measures must be carried out at intervals of one to five years.

It is necessary to lubricate the moving parts of the fittings with non-moisture-absorbing technical petroleum jelly at least once a year.
- Check the seals for damage (if the seals are damaged, they must be replaced).
- Regularly (once every six months) to clean the paint surface from dirt, you should use conventional cleaners - solutions of washing powders. After this, treat the surface with GlasuritQuick&EasyHolzbalzam.
- If it is necessary to update the surface paintwork wooden windows carried out using paints and varnishes from Glasurit (Germany).
- Periodically check the cleanliness of the drainage holes located outside on the bottom of the product.
- Glazing surface Wipe with glass care products.

Attention!

Data window systems They close very tightly and thereby save a lot of heat. To prevent this advantage from turning into a disadvantage in the form of condensation, you should ensure that the room is regularly ventilated throughout the day.

4. Warranty

To choose quality wooden doors– you must ask the seller for a certificate. If it is, then you are dealing with products from a responsible manufacturer who complies with all technical conditions and standards.

It is worth noting that certification of wooden doors is not a mandatory procedure; only those manufacturers who are confident in the quality of their products undergo it voluntarily.

And if the product does have a certificate, the wooden doors and all their structural elements are manufactured in accordance with GOST requirements. This means that you won’t have to deal with repairing or replacing doors in the near future.

Regulated by GOST 6629-88. The presence of a certificate of compliance with this standard means that the door is manufactured in compliance with technology from quality materials.

In addition, this GOST for wooden doors determines the parameters of fastening points, glazing (if provided), installation in the opening, etc. Despite the fact that these standards have been used for a very long time, and over the years since their adoption many new ones have appeared finishing materials, there have been no major changes in the basic door production technology.

As before, today the requirements for wood quality and permissible deviations from the specified sizes.

Do not think that GOST applies only to domestically produced wooden doors. Imported products are also subject to regulation; for this purpose, there is an International Standard regarding doors for residential, administrative, and public buildings.

All components of a wooden door block, down to sealing gaskets or glass inserts (see), must be checked by the manufacturer for compliance with manufacturing specifications. The results of this check are recorded in accompanying documents.

Types of structures regulated by GOST 6629-88

In our homes, the most common type of doors are panel doors with fine-hollow filling. Noise and thermal insulation properties(see) such a door depends on the type of filling, and its decorative characteristics depend on the quality of the finishing.

But there are also such parameters as functionality and strength, which are determined by compliance with all standard sizes of individual parts and their correct layout. If you look at the passport, which is attached to each batch of doors, you can find designations that are completely incomprehensible to an ignorant person.

For example: DO20-16 LP GOST 6629-88, PG21-10 N GOST 6629-88. To decipher them, you need to know the GOST classification of wooden doors:

• First letter D is the door, and P is the door leaf without the frame.
• The second letter indicates the type of construction, where G is a blind panel, U is a reinforced panel, O is glazed, and K is swinging (i.e., capable of opening in any direction relative to a fixed axis).
• The numbers following the letters are the height and width of the opening in decimeters.
• Letters after numbers indicate design features doors: P – threshold, N – with overlap, L – opening to the left (opening to the right is not indicated in any way).

Thus, the code DO20-16 LP GOST 6629-88 designates a double-glazed door for an opening 20 inches high and 16 inches wide, opening to the left, with a threshold, made according to GOST wooden doors. At the request of consumers, the standard allows for the production of door blocks of other sizes, as well as different widths of leaves for double-leaf doors of a fixed or glazed type.

At the same time, the consumer should be aware that the entire door block, that is, the leaf and the frame, must be made from the same type of raw material and supplied fully assembled.

GOST guarantees practicality and convenience

The buyer himself chooses the type of finish of the wooden door and the type of its design, focusing on his preferences and the feasibility of installing just such a door. But it is difficult or even impossible to check the quality of the internal elements of the door if a certificate for wooden doors is not provided by the supplier.

Having a certificate of compliance with regulatory requirements gives the buyer confidence that everything technical requirements During the manufacture of this model, the doors were made.

GOST defines:

• Height of door hinges
• The height of placement of locks (see) and handles
• Methods of fastening door hardware
• Location of fillers
• Thickness of frame ribs
• Methods for connecting strapping, etc.

These requirements did not arise out of nowhere, but from many years of practice in operating doors and trial tests, which made it possible to determine the most convenient parameters from a functional point of view.

The location of the devices at the points specified by GOST allows the forces applied to them to be optimally distributed over the entire door structure. That is, from the standpoint of preserving the integrity of the door, the appropriateness of these standards is clear.

The rigidity of the structure, the safety of geometric parameters and noise absorption depend on how correctly the fillers are located in the body of the door - fiberboard strips, bars, paper honeycombs.

GOST 475-78

You should not think that GOST for wooden doors necessarily means monotonous shapes and textures, boring colors. In fact, whether a door meets the standard only means that it is assembled from high-quality materials in compliance with assembly technology.

This is why there is GOST 475-78, which regulates literally all the nuances of manufacturing wooden doors, including quality control of raw materials and even the sizes of fastening screws. But this does not prevent manufacturers and designers from creating a variety of models that amaze with their design.

Classification of doors according to GOST 475-78

According to this standard, wooden doors are distinguished by:

• Design features
• Purpose
• Opening method and direction
• Number of canvases
• Type of finish (see)
• Availability of glazing

For interior doors, properties such as ease of opening and resistance to mechanical stress are important, while complete sound insulation or increased strength are additional conditions. If there is a non-standard high opening, it is not always necessary to make a door to order, since GOST for wooden internal doors provides for a manufacturing option standard door with transom.

It can be either solid or glazed, which is an additional source of natural light. Depending on the number of leaves, doors can be single- or double-leaf; for double-leaf doors, it is possible to produce leaves of different widths.

According to the opening direction, swing doors are divided into right, left and swing doors - turning in any direction around a vertical axis. Sliding doors and flip doors can also be right- or left-handed, depending on which way they open. When purchasing a door, it is important to pay attention to the method and direction of its opening.

GOST establishes the following standards for internal wooden doors:

• For rooms with permanent high humidity(more than 60%) requires the installation of moisture-resistant doors. They are made from coniferous wood.
• In rooms with normal humidity, doors with normal moisture resistance are installed. As a rule, they are made from durable and hard hardwood wood resistant to decay.

As for finishing, it is done with transparent and opaque coatings. Varnish is classified as transparent, varnish is classified as opaque. various paints, enamels, decorative film and sheet materials.

Special requirements apply to the front surfaces that are visible when the doors are in use.

Specifications

1. How well a wooden door will perform its functions depends on its correct geometry. In connection with this, GOST defines maximum tolerances for sagging, deviation from the plane of the canvas and the vertical, which are measured in millimeters. It is almost impossible to notice these changes with the naked eye; they are determined by measurements using special tools. But in production they must be fixed and if the tolerance is exceeded, the doors are rejected.
2. In addition, the technical specifications determine the permissible number of wood defects per unit area - cracks, knots, resin pockets. They must be sealed with plugs made of the same material, puttied and sanded. In a word, the surface must be ideally prepared for subsequent coating.
3. For small-void filling, slats and bars with defects and rot are not allowed. All non-facing (invisible during operation) surfaces of the door must be treated with an antiseptic or painted.
4. In one model it is not allowed to use different woods: the material of the box must be identical to the material of the door leaf. Besides saving decorative effect this guarantees the normal functioning of the door.

Let us repeat that if you are asked to study the certificate upon purchase, the wooden doors are made in compliance with all the above technical conditions. In addition, the certificate of conformity guarantees that during the manufacturing process the quality of finishing materials, the strength of adhesive and tenon joints, and the correct installation of devices were controlled.

GOST 475-78 stipulates the application of relevant standards and technical conditions for each door assembly unit. The passport of each batch of doors contains test results, measurement data and specifications for parts supplied not assembled.