GOST 12029-93 furniture. chairs and stools. determination of strength and durability

Seat and back

In the case of a metal frame, there can be a lot of seating options. It goes well with most materials. It can be wood, plastic or tempered glass. All of the listed options do not require the use of filler or upholstery and are classified as hard. If the base of the seat is made of furniture plywood, then, as with any soft seat, there will be a layer of filler covered with leather, its substitute or durable textiles. This affects not only the design of the chair, but also the comfort of its use. In some cases, the back and even the armrests may be soft.

The standard depth of a chair is 45 cm, and its width varies from 45 to 50 cm. At the same time, it will be up to 90 cm in height. This parameter can be conditionally divided in half. 45 cm will be from the floor to the seat and the same from the seat to the upper points of the back.

GOST 13025.2-85 Household furniture. Functional dimensions of furniture for sitting and lying

INTERSTATE STANDARD

Edition (November 2005) with Amendments No. 1. 2, approved in October 1989, May 2005 (IUS 2-90, 8-2005).

By Decree of the USSR State Committee on Standards dated June 27, 1985 No. 2040, the introduction date was set

01.01.87

The validity period was lifted according to Protocol No. 7-95 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-95)

1. This standard applies to household furniture and establishes the functional dimensions of chairs, work chairs, sofas, lounge chairs, sofa beds, chair beds with and without armrests, stools, beds and mattresses.

The standard does not apply to ottomans, couches, chairs and folding chairs.

(Changed edition, Amendment No. 1, 2).

2. The dimensions of chairs and work chairs must correspond to those indicated in the table. 1, damn. 1 and .

Table 1

Crap. 1

Crap. 2

2.1. The width of the seat at the widest part must be at least:

360 mm - for chairs;

400 mm - for work chairs.

2.2. The distance between the armrests must be at least 420 mm. The size is determined at a distance of 180 mm from the back.

2.3. The radius of curvature of the backrest (in plan) must be no less than:

450 mm - regular;

220 mm - lumbar.

Note. A regular backrest is a backrest whose upper edge is located above the seat at a distance of more than 320 mm.

By lumbar we mean the backrest, the upper edge of which is located above the seat at a distance of up to 3120 mm inclusive.

2.4. The distance from the floor to the lower edge of the front frame or drawer must be at least 300 mm.

3. The dimensions of sofas, lounge chairs, sofa beds and chair beds must correspond to those indicated in the drawing. 3 and in table. 2.

Crap. 3

table 2

mm

Note. Allowed seat depth B

more than 600 mm with additional support pads.

(Changed edition, Amendment No. 2).

3.1. The width of one sofa seat must be at least 500 mm.

3.2. The seat width of the chair at its widest part must be at least 480 mm.

3.3. The distance between the armrests or sides of the seats must be at least 480 mm. The size is determined at a distance of 300 mm from the back.

3.4. The dimensions of the sleeping place must be no less than:

1860 x 700 mm - for sofa beds;

1860 x 600 mm - for chair beds.

4. The depth of the seat is measured from the front edge of the seat to the line of its intersection with the back or with the vertical passing through the inflection point of the back.

5. The height of the armrests is measured from the middle of the seat depth.

6. The dimensions of the stools must correspond to those indicated in the drawing. 4 and .

Crap. 4

Crap. 5

Note. A kitchen stool with a height of 650 mm or more must have a footrest.

(Changed edition, Amendment No. 1).

7. The choice of height dimensions for chairs, work chairs, stools and tables must be carried out in accordance with GOST 13025.3-85.

8. The dimensions of beds and mattresses for them must correspond to those indicated in the table. 3 and to hell. 6.

Table 3

__________

* Size 120 min does not apply to beds with plinth supports.

Crap. 6

(Changed edition, Amendment No. 1, 2).

Styles

The appearance of the chair will be greatly influenced by its style:

• Country. Metals in this style are not used very often. Moreover, they must be combined with wooden elements. Not coated with shiny chrome coatings. Black or transparent varnish is available. The seat and back will be square. The chairs are characterized by unusual wood decorations, close to natural ones;
• High tech. This is a paradise for chrome models combined with plastic or tinted tempered glass. Chairs with transparent backs, unusually shaped legs and designer options will fit just perfectly. It is allowed to use bright colors of polymer or upholstery;
• Provence. The chair will have a rounded back with an obligatory oval-shaped soft insert. The seat also takes on rounded corners or a trapezoidal shape, noticeably widening at the front. The legs are high, set wide down. They may taper noticeably at the top or be straight. This style is characterized by square and low chairs with armrests, reminiscent of armchairs;
• Modern. The furniture is made with smooth contours and intricate carvings in the elven style. A lot of wood, combined with openwork forging. There are no sharp corners. Many models are made soft;
• Vanguard. Here, bold color schemes are combined with abstract and unusual frame designs. Designer models in the avant-garde will look like fish in water. Legs and backs of the most intricate shapes. Traditional models are quite rare.

Frame - types of metals, connection methods, processing

Classic iron is least often used to make chairs on a metal frame. This is due to its heavy weight and instability to moisture. But it is readily replaced with various steels. They are much more suitable in this regard. Inert metals with a low tendency to chemical reactions (aluminum, titanium, copper, chromium) are often used. If the metal is soft (copper, bronze), then they try to combine it with a harder coating (chrome plated).

The main methods for connecting parts include:

• Welding. Used only in places that are not conspicuous. The method is not very beautiful, but it has the highest connection reliability;
• Bent elements. The plasticity of the metal makes it possible to create frames from a single hollow tube, bent into the desired shape. In this case, fasteners are not needed at all. The most optimal and beautiful option;
• Bolts. The lion's share of elements are connected in this way. The fastener can be placed on the inside; it is not visible from the face. But check the tightness regularly. Nuts tend to loosen during use.

There are also several variations of the frame itself. The most common are solid ones. These are familiar chairs with a small amount of fasteners. The frame is fixed, so the furniture will occupy a certain place in the space. This completely depends on its dimensions. Folding variations of metal chairs are a little less common. In this case, the elements are movably fastened and the furniture can be literally “flattened”. They are good because they save space during storage. Very convenient to use. But, this slightly reduces their ability to withstand loads. Overweight people are better off choosing the first option.

To give the frame protective and decorative properties, the following coatings are used:

• Coloring. Nowadays there are a lot of enamels for metal on sale. They withstand humidity, heat and other negative factors typical of bathrooms and kitchens. They look great, with bright and glossy surfaces after drying. Reliably protect against corrosion;
• Spraying. Most often, chromium or titanium is used for this. They are loved for their high decorative effect, shine, strength and high-quality protection of the base material from corrosion. Undemanding to care. Not afraid of mechanical damage;
• Etching. Such coverages are conditional. Metals are immersed in chemical solutions, which are absorbed into the material. Usually one metal is given the properties of another. At the same time, the color also changes;
• Varnishing. Can be black, colored or transparent glossy. It perfectly protects against all negative factors, but it needs to be updated quite often.

According to the design of the base, all chairs can be divided into:

• Traditional. These are 4 legs placed under the seat. Stable, but prone to loosening fasteners;
• One support. The leg in this case thickens and is equipped with a wide round or ring-shaped base at the bottom. Very stable and can be equipped with rotating mechanisms;
• Poeng. This is the name given to the development of a Japanese designer. The legs are 2 square solid loops. They are not closed, but merged with the back. They are very stable and tend to sway slightly when sitting.

general information

About company

High-quality furniture is easy to recognize if you have already bought some home furnishings at least once. The GostMebel company offers you an excellent selection of inexpensive and at the same time stylish furniture in various designs and color variations. The GostMebel company, when developing its model range, takes into account the needs of 90% of the Russian population in choosing upholstered furniture.

The GostMebel factory has developed a unique system for assembling upholstered furniture, combining European and Russian assembly quality standards. The frame is based on timber and ortho lamellas of coniferous wood. During assembly, all load-bearing parts of the frame are glued with furniture glue, which gives the frame durability, reliability and eliminates squeaking. Ortho slats are located in the direction of the sleeping place (as on beds) and distribute the load on the spine, making sleep as useful and comfortable as possible.

Due to the use of ortho lamellas and filler (PPU mattress), the sleeping place is ventilated and does not deform over time, but, on the contrary, due to the flow of air circulating between the ortho lamellas, the filler quickly restores its shape and does not allow the upholstery material to stretch.

When producing furniture, we set out to break the stereotype that sofas are uncomfortable to sleep on. And when assembling sofas, they began to use the system and materials used in assembling bed bases - ortho slats, slatted holders. When surveyed, 90% of our clients sleep on the sofa every day and they did not expect such a result; it is really comfortable to sleep.

The GostMebel factory works with reliable partners, both domestic and foreign, to supply materials and components (fabrics, mechanisms, supports, raw materials) for production. Thanks to direct deliveries, the factory can maintain high quality and delivery times at a low cost. Another feature of the low cost is the modern approach and equipment (Italy), which allows several operations to be performed simultaneously, thereby saving time and labor.

When updating your interior, you always want the new thing to be in harmony with the entire room and give it coziness. All people strive for the best, so absolutely everything in new furniture is important! Starting with the color, ending with how quickly and easily it folds and unfolds. Therefore, it is better to choose furniture from a direct manufacturer in a showroom. Only in this case will your new bedroom or living room become the most comfortable place!

The GostMebel company focuses on the most fashionable trends. We keep up with the times, selling quality furniture at reasonable prices. We make comfort more accessible. Our experienced consultants will help you choose the right upholstery and tell you which material will be more durable when used in different rooms. Owners of small apartments will be able to choose the ideal furniture that is easily transformed and convenient to use.

Our production uses only environmentally friendly materials, and furniture manufacturing technologies comply with all GOST standards. Our company's furniture assemblers are neat and professional employees who will carefully assemble the product you ordered. Our website presents our main products and promotional items. Come to our website and find out - maybe your favorite sofa model is currently offering a discount!

“GostMebel” is reliable, durable furniture from the manufacturer, the quality of which is confirmed by numerous buyers and, of course, a guarantee for its use. When shopping with us, you get comfortable and stylish upholstered furniture!

Do you like our furniture?

Dear Clients! Our company participates in the rating of furniture factories in the Saratov region. We ask you to vote for us. Voting results: .

Click “Like” if you are completely satisfied with the quality of our products. Click “Dislike” if you are not satisfied with our products.

Metal chairs in the interior - advantages and disadvantages

Metal chairs have more than enough positive aspects:

• They look expensive. Despite the affordable price tags, such furniture looks expensive in the interior;
• Consistent sense of style. Metal fits optimally into the vast majority of modern styles;
• Reliability. Each model can withstand up to 150 kg of direct load;
• Durability. The metal will last for decades. The wood is not prone to pest damage and drying out;
• A large number of decoration methods. Despite the dull color, dozens of techniques are now used that can give metals uncharacteristic shades. This is galvanizing, sputtering, etching. Even without special painting, the frame can be bright blue, with a greenish tint or mirror-like;
• The plasticity of the material allows you to give the frame and legs any intricate shapes;
• Undemanding to care. Comparing with wood or rattan, you will be surprised at how unpretentious chairs on a metal frame are in this regard.

There are few cons. The absence of a protective coating can cause the formation of corrosion spots. Therefore, make sure that the model is protected by spraying or special varnishing. The significant increase in weight compared to wooden ones is upsetting. This disadvantage is combated by making the parts hollow inside.

Definition of sustainability

Furniture. Chairs. Determination of stability

OKP 56 0000

GOST 30211-94 (ISO 7174-1-88) GOST R 50051-92 (ISO 7174-1-88)

Date of introduction 01/01/94

This standard specifies methods for determining the stability of all types of upright chairs, stools and poufs. These methods are not suitable for determining the stability of sofas and other bench seating, reclining chairs when the backrest is at an angle, swivel chairs and rocking chairs. Nevertheless, these methods are used when testing chairs with mechanisms for adjusting the angle of the back, seat position, etc., if during the test the chairs are in their original, not transformed position.

The stability of chairs can be determined using experimental or calculation methods, which are specified in this standard. If the same force is applied to the same points, the two methods produce the same results.

The calculation method is not applied directly when testing lounge chairs and sofas, as well as in the following cases:

a) to upholstered furniture products made using springs that do not have constant elasticity;

b) chairs that deform when a load is applied, such as folding chairs, some metal chairs and those made of plastic.

The calculation method is also not suitable for chairs that have a deflection of more than 25 mm when a load is applied, which is clearly visible. It is advisable to use the calculation method in cases where it is difficult to move a load of significant mass.

Test results are only valid for the tested product. If the test results need to be extended to other similar furniture products, then the test samples must be taken from the industrial series of products.

In the event that the test procedure does not apply to furniture products of a particular design, the tests are carried out as close as possible to this description and all deviations from the specified order are recorded.

Appendices 2, 3 to this standard are recommended. This standard applies to chairs for adults of any type and any design.

In return

GOST 13025.7-71, GOST 13025.8-71, GOST 13025.9-81, GOST 13025.10-81, GOST 13025.11-71, GOST 13025.16-73

MKS 97.040.10 97.140 OKP 56 1000

Resolution of the USSR State Committee on Standards dated June 27, 1985 No. 2040 date of introduction

installed

01.01.87

The validity period was lifted according to Protocol No. 7-95 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-95)

1. This standard applies to household furniture and establishes the functional dimensions of chairs, work chairs, sofas, lounge chairs, sofa beds, chair beds with and without armrests, stools, beds and mattresses.

The standard does not apply to ottomans, couches, chairs and folding chairs.

(Changed edition, Amendment No. 1, 2).

2. The dimensions of chairs and work chairs must correspond to those indicated in the table. 1, damn. 1 and 2.

Table 1mm

Crap. 1

2.1. The width of the seat at the widest part must be at least: 360 mm - for chairs;

400 mm - for work chairs.

Official publication Reproduction prohibited

Edition (November 2005) with Amendments No. 1,2, approved in October 1989, May 2005.

(IUS 2-90.8-2005).

8

2.2. The distance between the armrests must be at least 420 mm. The size is determined at a distance of 180 mm from the back.

2.3. The radius of curvature of the backrest (in plan) must be no less than:

450 mm - regular;

220 mm - lumbar.

Note: A regular backrest is a backrest whose upper edge is located above the seat at a distance of more than 320 mm.

By lumbar we mean the backrest, the upper edge of which is located above the seat at a distance of up to 320 mm inclusive.

2.4. The distance from the floor to the lower edge of the front frame or drawer must be at least 300 mm.

3. The dimensions of sofas, lounge chairs, sofa beds and chair beds must correspond to those indicated in the drawing. 3 and in table. 2.

Damn.3

table 2

Note. A seat depth B of more than 600 mm is allowed with additional support cushions.

Photo of adjustable chairs

What is a chair

A chair is a piece of furniture that is designed to seat one person. These items are made from various materials, usually without armrests and with a high back. As a rule, apartment owners select dining chairs to match the style of the dining table and the overall interior concept of the room.

The first mention of the prototype of a modern seat dates back to the third millennium BC. The ancient Egyptians, who belonged to the highest social classes, had similar furniture.

Chairs are the most common type of furniture. They are present in almost every home. There are a large number of variations of dining furniture, which differ in shape, model, material of manufacture and other characteristics.

In addition, the product can be a symbiosis of several materials. There are also hard and soft chairs, with equipped seats filled with soft filling.

Bar

In modern kitchens and dining areas, designs such as an adjustable bar stool are often found.

They help to support the unique concept of the interior solution and emphasize the individuality of the room design, while you can choose chairs with seats and complemented by backs.

When choosing adjustable structures, it is necessary to rely on factors of comfort and ease of use in combination with the aesthetics of the design.

Beautiful and functional interior items will help transform any room and ensure the preservation of health and well-being for children and adults.

BASIC REQUIREMENTS FOR TESTING

4.1. A chair or stool is placed on a horizontal surface, stops are installed on the legs to prevent the product from sliding, but not tipping over.

When testing furniture products with a rotating support element, rotate the support element relative to the seat so that in this position the chair or stool is most susceptible to tipping over.

Secure all connecting and fastening fittings.

Height-adjustable chairs are set to the height at which the chair is most likely to tip over.

When testing a chair or stool with a round support element, the stops are positioned in the same way as for chairs with four legs.

When testing chairs with 3- and 5-beam supports, stops are placed on two supports.

4.2. Permissible deviations:

applied forces ±5%;

mass of cargo ±0.5%;

dimensional error ±0.5 mm.

(Changed edition, Amendment No. 2).

3.1. The width of one sofa seat must be at least 500 mm.

3.2. The seat width of the chair at its widest part must be at least 480 mm.

3.3. The distance between the armrests or sides of the seats must be at least 480 mm. The size is determined at a distance of 300 mm from the back.

3.4. The dimensions of the sleeping place must be no less than:

1860 x 700 mm - for sofa beds;

1860 x 600 mm - for chair beds.

4. The depth of the seat is measured from the front edge of the seat to the line of its intersection with the back or with the vertical passing through the inflection point of the back.

5. The height of the armrests is measured from the middle of the seat depth.

6. The dimensions of the stools must correspond to those indicated in the drawing. 4 and 5.

320mirt

Crap. 4

Crap. 5

Note: A kitchen stool with a height of 650 mm or more must have a footrest. (Changed edition, Amendment No. 1).

7. The choice of height dimensions for chairs, work chairs, stools and tables should be carried out in accordance with GOST 13025.3-85.

8. The dimensions of beds and mattresses for them must correspond to those indicated in the table. 3 and to hell. 6.

Table 3 mm

* Size 120 min does not apply to beds with plinth supports.

Crap. 6

Height is an important criterion

When choosing chairs for the kitchen or dining room, special attention should be paid to the height of the models. This directly determines how convenient and comfortable the products will be when used.

There are certain established standards that you should focus on during the acquisition process:

• The first important point is the height of the table. The standard indicator is 75 cm. Basically, this number was derived in relation to the average height of an ordinary person - 165 cm. Based on these indicators, you can choose the optimal table height.
• First you need to determine your height. Afterwards, you need to measure the height of the table. The resulting indicators must be multiplied and divided by 165. For example, if a person’s height is 174 cm and the table height is 75, the optimal furniture option will be 79.1 cm. You can also calculate the indicators for the whole family. To do this, you need to determine the average height of the household.

• As for the chair, here it is worth focusing on the established GOST standards. The average distance from the top of the table to the seat is 30 cm.
• You can also use a ready-made formula. If a person’s height is 168 cm, the optimal height is 45 cm. With indicators from 162 to 168, you will need a chair of approximately 42-43 cm. If a person’s height is below 162 cm, you need to choose furniture with a height of 40 cm.

• Calculating the required indicators is quite simple. For example, a chair with a height of 34.1 cm is suitable for a person with a height of 172 cm. To do this, you need to subtract 45 cm from 79.1 cm.
• A good choice for a family of several people of different heights would be adjustable furniture. The height can be increased or decreased if desired. You can adjust the indicators using a simple mechanism.
• It is worth noting that experts have identified the so-called gold standard. In this case, the height of the furniture from the floor level should be at least 80-90 cm. The optimal indicators for the backrest are 40-50 cm. The height from the floor to the seat should be at least 40-45 cm. It is worth choosing a chair with a depth of 50-55 cm .

How to choose the optimal sizes

If you need chairs for a family, models are selected for average height, calculated taking into account all its members. However, for certain purposes it is better to make an individual selection. This will help you maintain correct posture, not get tired during sedentary work, and feel comfortable and safe in your chair. Individual selection of height is carried out according to the following formula: multiply the height of the person by the height of the table and divide by 165. Subtract 40–45 cm from the resulting number (the taller the person, the closer to 45). This will be the optimal chair height.

For example, if you are 174 cm tall and have a table height of 75 cm, the required chair height should be about 39 cm.

Equally important is the correct ratio of table and chair heights. Today, tables with a height of 72-78 cm are more often made. At the same time, a standard chair for it has a height of 40-45 cm. If the stool has higher legs, there should be support under the feet.

For the comfort of sitting, the depth of the chair is important - the distance from the outer edge to the intersection with the back. Typically this parameter is determined as follows: three-quarters of the thigh length + a few cm for the gap (between the seat in front and the back of the popliteal surface). The average seat depth of a chair is 360-450 mm, an armchair – up to 500 mm. Children's chairs have a depth of 200-240 mm (for preschool children) and 270-360 mm (for school-age children).

Backrest height is the distance from the seat to the point at the level of the lower edge of the shoulder blade. The lumbar support will be functional if placed at the level of the 5th vertebra of the lumbar region. As the backrest angle increases, its height becomes smaller.

Chairs are furniture on which a significant part of any person’s life passes. Its correct selection is very important. An uncomfortable foot not only brings discomfort, but also harms health, causing pain in the back, neck, and legs.

Chair base

Office chairs can be divided into two types. They include:

• Mobile;
• Stationary.

Mobile options for office furniture can be easily moved to any point in the interior space. Stationary models have a metal base in the form of legs. This option is considered a cheap office chair.

The second type of chairs is divided into several types:

• Product with a “conference base”. There are 4 support legs and a flat seat base;
• Rotating mechanisms. They are a swivel chair;
• Armchairs in the form of a pedestal. The design is based on a cross-shaped support. This model does not have wheels for movement.

Contact details

Information about the legal entity

LLC "Vybor" OGRN 1126453004578, INN 6453123442 KPP 645301001, OKPO 37801315, OKTMO 63701000001 Year founded: 2016 Average number of employees: 01/01/2020 – 17 people General Director Komyagina Inna Gennadiev on

Types of activities (OKVED)

Main activity: 31.09 production of other furniture

Additional activities: 46.47.1 wholesale trade in household furniture 46.65 wholesale trade in office furniture

Manufacturer's address

Saratov region, city of Saratov, industrial center Zorinsky, building 1

Operating mode

Mon-Fri from 09:00 to 18:00. Sat-Sun weekend

Interesting solutions in the interior

There are many options for how to use different types of chairs in your kitchen interior. For a light design in a high-tech style, you should choose simple and laconic wooden models. It is best to choose options in a light color palette. For example, a white kitchen interior can be complemented favorably with blue chairs. A good option would be to decorate a bar counter using such furniture.

For a classic-style kitchen, wooden chairs decorated with carved backs are an ideal complement. It is best to choose products with fabric seats decorated with a print. Such chairs will not only beneficially complement the interior, but will also provide maximum comfort and convenience during use.

You can decorate the interior of a country-style kitchen with a dining set made from one type of wood. It is worth noting that such sets are often used even if the room itself is decorated from the same material.

Wooden chairs made in white will be a universal choice for many modern interiors. The products can be advantageously complemented with soft, removable seats.

Chairs will help provide maximum comfort. They can be either tall or have a standard height. It is worth choosing an upholstery material that will match the textiles on the windows.

See below for more details.