Shemot 26:18-20

Orthodox Jewish Bible

¹⁸ And thou shalt make the kerashim (planks) for the Mishkan, twenty kerashim (planks) on the south side southward.

¹⁹ And thou shalt make arba’im sockets of kesef under the twenty kerashim (planks); two sockets under one keresh (plank) for its two yadot (tenons, projections), and two sockets under the next keresh (plank) for its two yadot.

²⁰ And for the second wall of the Mishkan on the tzafon (north) side there shall be twenty kerashim (planks):