How to choose a chair, adjustable in height?

For adults and children who spend a lot of time behind a desk or desk, it is very important to maintain performance. Comfortable and comfortable position provides height-adjustable chairs.

Chairs with lifts can be used by both children and adults. Surfaces for sitting and back can be normal or orthopedic, corresponding to the shape of the body.

Orthopedic models can have the following configurations:

• Rollers for the lower back and hips;
• Armrests;
• Head restraints (with a change in the angle of inclination);
• Supports for the legs (front or circular), which allows to improve the blood circulation of the legs. They can also be folding or stationary);
• With stops for legs and knees (visually these models do not look very comfortable,but allow you to redistribute the load from the back to the legs);
• Vertically divided back (lightens the load on the spine).

Depending on the mechanism of ascent or descent, the following types are distinguished.

• With manual control mode:
  • Screw - The easiest option. You can change the height just by turning the seat: counterclockwise for lifting and clockwise for lowering. Practically not used, as there are more modern and convenient options.
  • Stepped - when the plane for sitting and backs move along the base and are fixed with special clamps. Such mechanisms are usually equipped with children's desks, where the adjustment is made as the child grows.

• Semi automatic (with gas lift) - these are systems in which the change in height is controlled by a lever. You need to click on it, and the mechanism will work.
• Automatic. In them, a piston is pressurized on a gas cylinder embedded in the support. Gas compresses the springs and allows the seat to move. Smooth movement depends on the shock absorber. It is better if it is metal, not plastic.
• Transformers. This chair can be swivel, with adjustable tilt and change the distance from the front edge of the seat to the back.They are suitable for all people who spend at the computer for more than three hours a day.

The most natural, eco-friendly and therefore suitable even for children's models is the tree. It is better if harder trees are used, so the product will be stronger. In addition, they have a better visible texture. To prevent wood from cracking and cracking, keep such a product away from heating devices and sources of moisture. In addition, the tree requires special care and treatment.

Modern chairs are rarely made from the same material completely, since such models will be less durable. In addition, each material has its own processing features. Usually, the frame is made of metal or plastic with a metal profile inside, at least - of plywood. It is better if the supports are also partially or completely metal. Metal and plastic are easy to clean, they are resistant to moisture. The main thing - to pay attention to the thickness of the frame. In no case should he bend.

Depending on the amount of filler, the following types of chairs are distinguished:

• Soft;
• Semi-mild;
• Hard.

As a filler can be used as a cheaper foam rubber or felt, and more expensive polyurethane foam (it is more resilient, less peroxide and deformed).

For upholstery using different matter:

• Textiles (microfiber, mesh cloth, acrylic, polyester). Fabrics are durable and breathable. They are most often used for children's models.
• Leather. Differs in high cost, it is steady against deformation, wear and pollution.
• Artificial leather (vinyl). Inferior to its natural counterpart, less durable, does not let the air through.

The average seat height for an adult is from 45 to 50 cm, the support surface of the back is at least 32 cm, and the width is not less than 38 cm.

The cross-section parameters of the seating plane can be:

• Narrow - up to 50 cm;
• Medium - from 50 to 60 cm;
• Wide - from 60 cm.

The longitudinal parameters are as follows:

• Small - from 50 to 60 cm;
• Medium - from 60 to 70 cm;
• Deep - from 70 cm.

Setting the height of the seat for children, you can use the following table:

The height of the back of the child should be up to the middle of the shoulder blades. For teens, you can use the parameters of adults. Naturally, it must be borne in mind that all people are individual, and the proportions of the body are different for everyone: someone has a longer torso, someone has legs. Therefore, to select furniture for long-term and constant use should be in accordance with your physique.It will be better to measure all the parameters of a person in a sitting position before buying.

First of all, any furniture should fit the interior of the room, office, office, institution. If the chair has already been purchased as a gift or provided by the employer, its color can be changed only by wearing a case, changing the upholstery, or painting the colors appropriate for the material. If the selection process is not completed yet, then you should think about how it will look.

The model and color range is truly huge. It can be both monophonic, and color options. But not all ideas can be implemented in life, since much depends on materials. Wooden surfaces can be natural shades, painted or patinated. Their palette is somewhat limited. The metal can be painted or chrome-plated, with a shiny or matte surface, the color scheme in this case is limited to the choice of paint.

Plastic is a more convenient material for processing and painting. Products from it can be a variety of shapes, colors and textures. The greatest demand is for models that combine two or three colors.

As decorations can serve as the main components of the chair, and its additional, for example, a rug, if the model is on wheels, or a cover. The back can be of different shapes - oval, trapezoid, rectangular or other arbitrary. The original form, and even a contrasting color, is not suitable for ergonomic models, but will become a bright element of the interior. For the student armrests are not needed, but if you are working on a computer, they are simply necessary. The armrests can be of different shapes and fastened both to the back and to the seat.

The chair can have one support or two (depending on the method of height adjustment). They can be contrasted with other parts or match in color. If the decor of the room a lot of shiny surfaces, then the support can be shiny. A cross (as a rule, with five rays) can also be of a contrasting color. Wooden models can be decorated with carved details, decorative plates with oddly curved supports.

Another decoration can serve as upholstery. It can be monophonic, with a pattern (for example, with the image of a favorite hero from a cartoon or film).The back can be completely covered with textiles with volume details in the form of an animal.

Regarding the height-adjustable chairs, due to their design features, it is difficult to come up with any original solutions. However, new items never cease to amaze. If the model looks unusual, it does not mean that it is uncomfortable to sit on it. On the contrary, chairs with knee support effectively relieve the spine, and some original models can be used from birth to adolescence. A chair with an impressive complex mechanism will look great in the interior, where the latest technical innovations are used. A bright, elegant, compact chair will take center stage in a modern interior. Bold options are suitable not only for the home, but also to defuse the situation in the office.

Children's models are significantly different from adults.

When choosing them you need to take into account several nuances:

• The first requirement for all children's furniture - strength, reliability of fixtures and safety of materials.
• A desk with a simple chair is suitable for kids, while the most comfortable and multifunctional chair and table are necessary for the student.
• The landing should be correct: there is a right angle between the thighs and the shin, the feet are pressed to the floor and the back to the back. The junior student should not have armrests (elbows should lie on the table) and a head restraint (so that the child does not sit lounging).

• It is not necessary to equip a first-grader's chair with complex mechanisms and rollers (when swaying or circling, the child will be distracted), this is an option for older people.
• Upholstery must be breathable. To facilitate cleaning, you can stitch or order removable covers.
• Of course, practicality is important in this matter, but, seeing pleasant colors or patterns, the child will start performing the lessons with great pleasure.
• Despite his age, the child must also participate in the selection process. So the child will not only appreciate and take care of the furniture, but also feel its importance.

These chairs have become popular due to their merits:

• The main advantage over conventional chairs is that they can change their parameters and, because of this, are more comfortable;
• Growing models save money and time to choose other models if the child has grown;
• Due to the changing height, a person of any height can be placed on such a chair;
• A chair fixed in different positions will allow you to sit at a table of different heights;
• Allow to preserve and maintain health.

They are not without flaws:

• If the chair is designed for a certain load, it is impossible to sit on it with people exceeding the maximum permissible weight;
• Models with gas lift should not be used at low temperatures. To determine the parameters you need to stand, and only then sit down and make sure that they are comfortable;
• Models with a stepped system allow you to increase the height by a certain step, it is less convenient than continuous increase.

When choosing a chair, “rastishki” or just a convenient office chair, you can refer to reviews of friends or read them on special sites. Some of the most popular manufacturers should be considered.In general, the brand received good reviews. "Bureaucrat". Buyers are satisfied with the price-quality ratio, a wide assortment range of both children's and adult chairs and sets, good work of mechanisms, bright colors. Small complaints caused upholstery. Somewhere in one and a half-two years of use the leather substitute lost its appearance.

Manufacturer "Demi" also has a lot of positive feedback. Users note the convenience and ergonomics of growing models, high quality, a large range, ease of assembly of all products in general. Among the wishes of the manufacturer note the need to include covers in the package.

No worse than the above, brand views Ikea. Of the minuses, there is a hard back and a special brake on the wheels. However, for someone it will be a plus.

TCT Nanotec does not cause any complaints to users, on the contrary, there are additional details like a special handle on the back side for easy movement and the presence of blockers. However, as the chairs Kettlerwhose only drawback is a lot of weight.

Series "Shkolyarik" from furniture factory "Absolute" relished its naturalness (mostly all products from natural wood). However, the cost of such furniture is above average.

Company "Smartstool" causes only positive responses, especially the model with the redistribution of load on the legs and knees.

• In the economy class series, there are also models with the ability to change the height. They can be used as school furniture or in other children's institutions.
• Models with a brighter design will cost a little more, but they will also look appropriate.
• Chair “rastishka” for preschoolers suitable for any ordinary table or easel table.
• The most familiar height-adjustable models still remain seats with gas lift.

• Versions with a back in the form of an animal will not leave children and adults indifferent.
• In addition, you can choose upholstery with images of your favorite characters or just a suitable abstract pattern.
• All kinds of orthopedic models will help preserve and improve health at any age.

How to choose the right chair, you will learn from the video below.