Exodus 36
Bible in Basic English (BBE)
21 The boards were ten cubits long and one cubit and a half wide.
Young's Literal Translation (YLT)
21 ten cubits `is' the length of the `one' board, and a cubit and a half the breadth of the `one' board;
King James Version (KJV)
21 The length of a board was ten cubits, and the breadth of a board one cubit and a half.