Exodus 26:17-27

17 with two projections set parallel to each other. Make all the frames of the tabernacle in this way.
18 Make twenty frames for the south side of the tabernacle
19 and make forty silver bases to go under them—two bases for each frame, one under each projection.
20 For the other side, the north side of the tabernacle, make twenty frames
21 and forty silver bases—two under each frame.
22 Make six frames for the far end, that is, the west end of the tabernacle,
23 and make two frames for the corners at the far end.
24 At these two corners they must be double from the bottom all the way to the top and fitted into a single ring; both shall be like that.
25 So there will be eight frames and sixteen silver bases—two under each frame.
26 “Also make crossbars of acacia wood: five for the frames on one side of the tabernacle,
27 five for those on the other side, and five for the frames on the west, at the far end of the tabernacle.