Exodus 36:18

15 the length of the one curtain [is] thirty by the cubit, and the breadth of the one curtain [is] four cubits; one measure [is] to the eleven curtains;

16 and he joineth the five curtains apart, and the six curtains apart.

17 And he maketh fifty loops on the outer edge of the curtain, in the joining; and fifty loops he hath made on the edge of the curtain which is joining the second;

18 and he maketh fifty hooks of brass to join the tent -- to be one;

19 and he maketh a covering for the tent of rams` skins made red, and a covering of badgers` skins above.

20 And he maketh the boards for the tabernacle of shittim wood, standing up;

21 ten cubits [is] the length of the [one] board, and a cubit and a half the breadth of the [one] board;