King James Version (KJV)
Ten cubits was the length of a board, and a cubit and a half the breadth of one board.
Modern English
Ten cubits was the length of a board, and a cubit and a half the width of each board.
Ten cubits was the length of a board, and a cubit and a half the breadth of one board.
Ten cubits was the length of a board, and a cubit and a half the width of each board.