The filler of upholstered furniture affects its service life and comfort. Therefore, when buying, it is important to consider this parameter. One of the common fillers are springs. They are divided into several types. Before purchasing, it is important to understand all the intricacies of this issue.
Content
What is it and how arranged
Springs have been used for upholstered furniture for a long time. They are a single block fixed to a wooden frame. The outer part is often wrapped with material.
In high-quality models, such a fabric layer is made under and above the springs. The reliability of the structure depends on the listed components.
Therefore, it is recommended to choose products made of wood, with a double layer of durable fabric.
Springs act as shock absorbers, allowing the structure to be elastic, resilient and soft. They help to avoid sagging and keep the shape.
Types
There are 3 main types, shown in the table.
| Type | Description |
| Independent | They are distinguished by their reliability. Steel five-turn parts are in fabric covers. When loaded, not the entire system is activated, but a separate part of it. Therefore, the spine takes a natural, correct position. The load is distributed evenly. Products with a small diameter, made of thin wire to increase their number, are more often used. This has a positive effect on the elasticity and density of the structure. |
| Bonnel | In this case, double-cone, steel ones are used. They have 4-5 turns and are fastened with a special frame. The block has several frames and is distinguished by its rigidity and reliability. |
| Snake | Used for soft bases. Galvanized steel is used for manufacturing. It is bent using high temperatures. The more bends, the more reliable the structure will be. The name appeared due to the appearance, reminiscent of a snake. Fastening in the frame occurs transversely with steel wire staples. |
Advantages and disadvantages
The following advantages exist.
- Long service life, provided that excellent quality parts are used.
- Reliability.
- Capable of withstanding heavy loads.
- They form a flat surface without sagging.
- Good elasticity.
- The air circulates freely inside, which helps create a healthy microclimate.
- Good level of moisture exchange.
- Convenience and comfort of use.
Independent spring block of a modern mattress - Positive effect on the spine. The product is able to adapt to the shape of the human body. It supports the back in a comfortable position, which helps relieve fatigue and tension. This promotes healthy, effective, full rest.
But there are also some disadvantages.
- A creaking sound may occur.
- Some models have a high price.
- The range of shapes is limited and not very diverse.
- If there is a need for repairs or a complete replacement of the unit, you will have to spend a lot.
If the spring block is broken, you can replace it or try to repair it. 
DIY repair of a sofa with a spring block
How to choose correctly
To purchase a reliable and high-quality product, it is necessary to take into account a number of characteristics when purchasing, including the purpose of the sofa and its rigidity. Therefore, it is worth considering the following.
- The optimal level of rigidity is considered to be medium. Otherwise, pain and discomfort in the spine arise.
A mattress with a Multipocket system with honeycomb spring arrangement is an ideal solution for a comfortable sleep for a married couple, especially if the partners have a large difference in weight - Choose a steel block, it is reliable and of proper quality.
Eurobook sofa with independent spring block - If you plan to sleep on the sofa, then the back and seat should have the same filling.
Filling the accordion sofa model for use as a sleeping place 
Filling of a sofa for sitting with constant and intensive load - It is desirable to have a cover. This will make it easier to care for the furniture. When buying, the cover allows you to see the filler.
- To increase comfort and avoid allergic reactions, buy furniture made from natural fibers.
The choice will be influenced by the design of the sofa, its dimensions and transformation mechanism. It should fit organically into the overall interior, not take up too much space and be easy to disassemble. Then it will be convenient to use.
