Sofa sizes: standard and non-standard solutions, which dimensions to choose

The sofa is firmly associated with homeliness and comfortable rest. Often, it is enough to purchase and install upholstered furniture so that the room is completely transformed and acquires a special flavor. It is this symbol of bliss and luxury that becomes the visual center, the focal point in the living room interior, adds softness and sophistication to the strict lines of a modern kitchen, and has a calming effect in the hallway or loggia.

Sofas do not go out of fashion, remaining relevant in the 21st century. Manufacturing factories offer new design solutions, combine different functions, improving their products. And consumers can only choose the most suitable model.

One of the main parameters is the correct dimensions of the product. Today we will talk about the classification of upholstered furniture by size. We'll give you tips on choosing the right size sofas.

What to consider when choosing a sofa size

Often, when choosing the dimensions of a model, property owners focus only on the measurements taken and the dimensions of the free space in the room. Undoubtedly, this is an important parameter, but not the only one.

There are a number of factors to consider:

• the number of family members permanently residing in the given territory;
• hospitality, way of life of the owners. If friends and relatives often appear in the house, or overnight guests arrive, you need to take care of their comfortable accommodation;
• individual habits of parents and children;
• the physique of the inhabitants of the house;
• presence of pets – cats, dogs.

For example, for a married couple who prefers a quiet, secluded life, a small two-seater sofa is enough. This model is also suitable for people living alone. If the family is large, you will have to look for more spacious models.

Since upholstered furniture is used for 8-15 years or even more, you should think about the prospects. Perhaps the family is planning the birth of their first child or the next child in the coming years, and additional seating will be vital. There should be enough space on a cozy sofa for all household members, without exception.

And each of them should be positioned as comfortably as possible for themselves: stretch out or, conversely, pick up their legs, lean on their back or side, put their head on a soft pillow.

How to choose product dimensions

Be smart when choosing the size of your sofa. You must rely on:

• room possibilities;
• Interior Design;
• required sofa capacity.

The optimal height of the sofa for each family member is 70 cm when disassembled, 50 cm when assembled.

In fact, there is barely enough space in it, so you spend more: it is better to buy additional modules or use more spacious models.

A large family needs three-seater corner sofas, one-and-a-half fold-out products, etc. The optimal height of the sofa for each family member is 70 cm when disassembled, 50 cm when assembled. Based on this calculation, a double version with a length of about 200 cm can accommodate three people. In fact, there is barely enough space in it, so make it more wasteful: it is better to buy modules or use more spacious models.

In small rooms, double sofas 1.8-2 meters long are installed.

The additional module slides out compactly, making these devices a comfortable place to sleep

In small rooms, double sofas 1.8-2 meters long are installed. They can be cut to a depth of up to 70 cm. Height is 7-8 decimeters. If the size of the apartment allows, it is better to buy three-bed corner models. The additional module slides out compactly, making these devices a comfortable place to sleep. Its height should be enough for a person to feel comfortable while resting.

If the size of the apartment allows, it is better to buy three-bed corner models.

The height should be enough for a person to feel comfortable while resting.

Designers advise choosing sofas with high backs. Visually expand the space around the furniture. In addition, it should not exceed the level of the window frames in the house.

Designers advise choosing sofas with high backs.

The height should not exceed the level of the window frames of the house.

Standard sofa sizes

There is an old, still Soviet GOST 13025.2-85, which regulates the sizes of sofas according to average anatomical and medical standards. According to it, the standard dimensions are:

• height (distance from the floor to the top point of the seat cushions) – 44 cm;
• width of one seat (distance between side points) – 50 cm;
• The width of the sleeping bed for one person is 70 cm.

The average seat depth is 60 cm. It is most comfortable for a seated person, as it allows you to reach the floor with your feet while resting your back on the back of the sofa.

However, the times when Russian industry produced only a few types of sofas are long gone. Today, there are a lot of models available to consumers, with a variety of shapes and sizes. Every developer strives to create a special product, hoping to surpass the competition. Therefore, the dimensions of the products differ greatly.

The modern classification of sofas by size is based on the number of seats and considerations of maximum comfort. Also, a lot depends on the shape of the product, the presence of a transformation mechanism, and corner elements. Approximate values ​​are:

• length of double sofas from 175 cm;

• from 210 cm length for three-seaters;
• from 250 cm for four seats;
• five-seater – from 300 cm.

Compact baby sofas are 120-150 cm long. The width (seat depth) varies from 70 to 90 cm, excluding the backrest. With a back, the width is 90-110 cm. The height of the products from the floor to the upper edge of the back is from 70 to 120 cm. For corner sofas and transforming models, the overall dimensions are calculated by adding the sizes of all elements.

Height and other dimensions

The height of sofas is usually not given too much attention, which is quite strange, because the back is a very important element that supports the spine. Mostly the dimensions of the sofa back depend on where it is used. Children's models are usually low, there are even products below 60 cm. Among “adult” sofas, the lowest are modular options, the height of their backs is approximately 70 cm.

Some models simply sit on the ground, while others have legs. The standard does not determine the height of the sofa and it depends only on the design idea. As for the armrests, their size, like the dimensions of the furniture itself, depends on the design. For example, a product in a minimalist style may have no armrests at all and be very comfortable, while a sofa for a baroque interior will take up a lot of space and has wide armrests.

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Size of a straight sofa without transformation mechanism

A classic version of a sofa, which is a comfortable, soft seat or bed for one person, if its length allows you to lie down. They are installed along the walls in rooms, hallways and corridors. Compact single and double options are often used in niches, narrow walls, glazed balconies, and kitchens.

Standard sizes:

• the depth of the product is 60-90 cm;
• length of mini-sofas – from 100 to 160 cm;
• the length of full-fledged straight models is from 170 to 250 cm.

The main advantage of a straight sofa is its durability at low cost. A reliable frame, strong legs and upholstery made of wear-resistant materials allow you to use the product for ten years or more. There is simply nothing to break in it. And the filling of sofa cushions can be replaced over time.

However, there is a serious drawback: a straight sofa can only be used in one capacity: as a comfortable seat. It won't make a comfortable bed.

Standard height from floor

Of course, there are people significantly higher or lower than the majority. And also people with unusual body proportions. But standards are not made according to them, but according to the average.

Since furniture is a universal thing, the average height of adults of both sexes was taken for men and women. The indicators were added and divided by two. The result was about 170 cm, this figure is used as a guideline when drawing up the standard.

The table below shows the standard sofa height for an adult in 2022, whether male or female. These indicators are obtained over the past ten years, which makes them current. In fact, the growth of Homo sapiens did not change significantly during this time.

Perhaps these parameters will be different in the future. They are likely to increase as the average man and woman on the planet gets taller. If you look at furniture from earlier times, you will notice that many sofas and more were lower.

This is directly related to the lowest average height of people in the past. For example, in the middle of the last century in the USSR it was about 164 cm. Therefore, before buying a retro sofa, you should try it on centimeter by centimeter and make sure that this piece of furniture meets the basics of comfort and ergonomics.

Dimensions of sofas with transformation mechanism

Multifunctional transformable sofas are the most popular type of model today. They are equipped with transformation mechanisms that allow you to unfold the sofa, turning it into a comfortable single or double bed. The type of design can be different - “book”, “accordion”, “dolphin”, direct and withdrawable systems.

The dimensions of the sleeping place depend entirely on the length of the sofa and the mechanism used.

• The length of the sleeping place near the sofa-book is equal to its length, since the person lies lengthwise. Width is the sum of the seat depth and backrest height.
• For sofas that fold forward, the width of the bed is equal to their length when folded. And the length of the bed can be from 170 to 250 cm. Such models are more compact when folded, and the sleeping area is larger in size.

When choosing the type of transformation mechanism, it is necessary to take into account the availability of free space in the room. The sofa, when unfolded, should fit freely in the space allocated to it.

Elite corner sofas

Beautiful and comfortable proportions: the depth of the side modules is 60% of the length of the main part, and it varies depending on the number of seats. The average base size is 3 m. The minimum for a three-seater model is 2.6 m, for a four-seater U-shaped sofa is 3.5 m. The maximum perimeter length is limited only by the size of the room, since all corner sofas are modular.

Product forms

In addition to a variety of contents, functional pieces of furniture can have classic and original contours, as well as unusual decoration. All models can be divided into several types according to their shape:

• rectangular - standard design with several wide lower drawers and two upper ones, separated by a partition;
• corner - occupy a minimum of space, can have an L-shaped, L-shaped, trapezoidal contours, consist of five walls;
• radius - instead of the usual strict angles, models have convex or concave surfaces, curved shapes;
• combined - chests of drawers with moving modules, relevant in the design of modern interior styles.

Combined

Rectangular

Radial

Angular

There are designer models, which are given an unusual shape, and products are made in non-standard dimensions. The type of installation of the product depends on the shape of the chest of drawers. Furniture can be installed along the walls, placed in a corner, hung on the walls, placed in the center of the room - island options with drawers that slide out in both directions. The dimensions and dimensions of the chest of drawers should be such that the product is comfortable to use in everyday life and to store many things in the drawers.

Individual selection by height

Some people find standard height options uncomfortable. If a person is about two meters tall, he needs at least 50 cm of seat height. So, if your height is very different from the average, you should not be guided only by the standard. It is important to sit on the sofa in different positions to ensure its ergonomics.

Goals are worth setting. It’s one thing if it’s a decorative sofa for the living room, on which it’s nice to sit with guests. Here the issue of height is not fundamental, because a person will not constantly use such furniture.