Exodus 36:21 KJV
The length of a board was ten cubits, and the breadth of a board one cubit and a half.
Exodus 36:19–23 KJV Chapter Context
19
And he made a covering for the tent of rams’ skins dyed red, and a covering of badgers’ skins above that.
20
And he made boards for the tabernacle of shittim wood, standing up.
21
The length of a board was ten cubits, and the breadth of a board one cubit and a half.
22
One board had two tenons, equally distant one from another: thus did he make for all the boards of the tabernacle.
23
And he made boards for the tabernacle; twenty boards for the south side southward: