Exodus 36:9 KJV
The length of one curtain was twenty and eight cubits, and the breadth of one curtain four cubits: the curtains were all of one size.
Exodus 36:9, King James Version
In context
8 And every wise hearted man among them that wrought the work of the tabernacle made ten curtains of fine twined linen, and blue, and purple, and scarlet: with cherubims of cunning work made he them.
9 The length of one curtain was twenty and eight cubits, and the breadth of one curtain four cubits: the curtains were all of one size.
10 And he coupled the five curtains one unto another: and the other five curtains he coupled one unto another.