What is the size of the door curtain of 8 printing pots in rural large iron pots?

The specific dimensions are as follows:

In ancient times, eight feet on a week was one, seven feet on a week was one, and one foot on a week was about 23 cm, so eight feet should be 184 cm, and eight printing pots are equivalent to eight feet, that is, the diameter is 1472 cm, which is too different from the fact, and what we usually call eight printing pots. Moreover, due to different local standards, this error is quite large. For example, the diameter of the Bayin kettle in some parts of Northeast China is only 68 cm.