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Why Do Plastic Chairs Have A Hole At the Back?
Why Do Plastic Chairs Have A Hole At the Back? Here's The Science Behind The Design
The hole in plastic chairs isn’t just for design — it serves several purposes from reducing weight and production cost and air circulation.
You may have noticed that most plastic chairs have a hole at the back. While many assume it's simply part of the design, there are several practical reasons behind it — and they’re quite interesting. One of the main reasons is related to stacking. When plastic chairs are stacked on top of each other, air can get trapped between them, creating suction and making it difficult to separate the chairs. The hole allows air to escape easily, preventing them from sticking together and making them much easier to pull apart.
The hole also improves air circulation for the person sitting, helping to avoid discomfort caused by sweating. And in case water is spilled onto the chair, it can easily drain out through the hole instead of collecting on the surface.
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