Exodus 26:13-18 New International Version (NIV)

13. The tent curtains will be a cubit longer on both sides; what is left will hang over the sides of the tabernacle so as to cover it.

14. Make for the tent a covering of ram skins dyed red, and over that a covering of the other durable leather.

15. “Make upright frames of acacia wood for the tabernacle.

16. Each frame is to be ten cubits long and a cubit and a half wide,

17. with two projections set parallel to each other. Make all the frames of the tabernacle in this way.

18. Make twenty frames for the south side of the tabernacle

Exodus 26