By B15m1lah. Chair. At Sunday, July 01st 2018, 06:04:24 AM.
Folding chairs are a great solution to situations where chairs are necessary but not on a daily basis. For example, a multi-purpose hall in a school could be used for gymnastics displays as well as assemblies, chairs being set out and folded away as and when necessary. In a school environment you will generally find wood used as the preferable material for these chairs, although there are plenty of modern-day alternatives.
The single most overlooked feature to consider when looking at buying office chair is the base. It is standard for these chairs to have casters or wheels. However some chairs come with only four spokes, or for legs with wheels; others with five, or six. It is important to get a chair that has more than four legs. With only four legs, depending on the orientation of the chair, it can be easy to tip out of the chair. Because of the head rest, someone sitting in the chair will be inclined to sit back and lean back in the chair. If the chair has only four legs, i.e. a base with four wheels, if they are leaning back between two of the legs, the chair could tip over backwards. (The taller back of an executive chair makes this more likely than with a smaller, standard office chair.) With five or more wheels, the chair becomes more stable. Of course, the other determining factor of the stability is the width of the base. Again, high-end executive chairs will have a wider base.
Having the right back height for your office chair can be of particular importance for those who suffer from back pain and even for those who want to avoid back pain. A good way to determine the back height that will be needed for your chair is to look at your current office chair. If you currently suffer from upper back you will want to look for a chair that's back will come up high enough to support your shoulder blades. Have a friend measure your back in its entirety from the top of the seat on your current office chair up to your shoulder blades to calculate how tall you will need your back rest to be.