It is suggested that the disc should be considered as a whole, because in the history of furniture development, the earliest chair leg was one, then it became three, then four, and then it became a mature claw shape with five legs. That's because circles are more stable in uniform stress.

Then it is round, because the area is large, and the thickness must be thinner than the triangle. That's because the chassis counterweight is the same for everyone.

In terms of floor space, the circular shape is also slightly smaller than the widened clothes rack, but the widened clothes rack is easier to place, so everything depends on the specific situation. If there is enough space, it is more durable to choose a circle.