King James Version (KJV)

Exodus 36:21

“The length of a board [was] ten cubits, and the breadth of a board one cubit and a half.”

Verse in context — Exodus 36

And he made a covering for the tent [of] rams' skins dyed red, and a covering [of] badgers' skins above [that].

And he made boards for the tabernacle [of] shittim wood, standing up.

The length of a board [was] ten cubits, and the breadth of a board one cubit and a half.

One board had two tenons, equally distant one from another: thus did he make for all the boards of the tabernacle.

And he made boards for the tabernacle; twenty boards for the south side southward:

God delivers Israel from Egypt, gives the Ten Commandments, and establishes His covenant with His people.