If the furniture size differs from the standard by a few centimeters, although there is no major difference from the appearance, people may experience spinal deformation, lumbar strain, vision loss and other problems after using it for a long time. We have listed several common furniture standard sizes for your reference. 1, sofa: sofa seat front width should not be less than 480mm; seat surface depth should be between 480mm-600mm; seat height should be in the range of 360mm-420mm. Today, some simple and stylish low sofa, multiplied by the young people’s favor. However, the height and width of the sofa has a close relationship with health. If the front width of the sofa seat is less than the standard, the space of the sofa will become narrow; seat surface depth is too deep, the calf can not naturally sag, the leg belly is easy to be compressed; too shallow, and will make people have a feeling of sitting; seat surface is too high, like sitting on a high chair, very uncomfortable, if too low, people will feel more effort when standing up some. 2.Bed: 440mm is the healthy height (measured by the height of the futon surface from the ground). Many people like short beds like tatami mats and feel that such beds are simple and convenient. There are also some people who often use the bed as a storage room under the bed, and use a small cabinet to make the mattress very high. In fact, the edge of the bed is too high or too low from the ground, will make the legs can not be normal on the ground, over time, the nerves in the legs will be squeezed. 3, pillow: the adult pillow height of 150mm, the elderly and children slightly lower. Because the height of the pillow will directly affect the sleep, the pillow is too high, people can not be in a natural state of relaxation, affecting the quality of sleep, obstructing blood circulation, especially for children’s growth and development and the health of the elderly is not good. 4, table and chair height difference between 280mm-300mm; writing desk below the height of not less than 580mm, width of not more than 520mm. table too short or chair too high will affect the human spine and lumbar spine, especially not conducive to children’s vision and growth and development. If the space under the writing desk is not up to standard, the legs will not be able to move freely. In addition, as each family in the TV model size is not the same, in the choice of TV cabinet, to combine the height of the TV and sofa to calculate. If people’s line of sight falls exactly in the center of the TV screen, it means that the height of the TV cabinet is appropriate. The best way to determine whether the size of the furniture is suitable is to try it in person. If you work at the computer desk for a while to feel back pain, sleep enough but do not feel relaxed, it is likely that the size of your furniture is wrong. Therefore, when selecting furniture, be sure to try more, more questions, but also according to personal circumstances, looking for manufacturers directly customized.