Exodus 36:20-30
36:20 He made the frames for the tabernacle of acacia wood as uprights.
36:21 The length of each frame was fifteen feet, the width of each frame was two and a quarter feet,
36:22 with two projections per frame parallel one to another. He made all the frames of the tabernacle in this way.
36:23 So he made frames for the tabernacle: twenty frames for the south side.
36:24 He made forty silver bases under the twenty frames – two bases under the first frame for its two projections, and likewise two bases under the next frame for its two projections,
36:25 and for the second side of the tabernacle, the north side, he made twenty frames
36:26 and their forty silver bases, two bases under the first frame and two bases under the next frame.
36:27 And for the back of the tabernacle on the west he made six frames.
36:28 He made two frames for the corners of the tabernacle on the back.
36:29 At the two corners they were doubled at the lower end and finished together at the top in one ring. So he did for both.
36:30 So there were eight frames and their silver bases, sixteen bases, two bases under each frame.