Exodus 26:2

The length of each curtain shall be twenty-eight cubits, and the width of each curtain four cubits. And every one of the curtains shall have the same measurements.

Surrounding context

26:1 "Moreover you shall make the tabernacle with ten curtains of fine woven linen and blue, purple, and scarlet thread; with artistic designs of cherubim you shall weave them.

26:2 The length of each curtain shall be twenty-eight cubits, and the width of each curtain four cubits. And every one of the curtains shall have the same measurements.

26:3 Five curtains shall be coupled to one another, and the other five curtains shall be coupled to one another.

Translation and sources