C. F. Keil and Franz Delitzsch on Exodus 27:9-11

Exo 27:9-11 (cf. Exo 38:9-20). The Court of the dwelling was to consist of קלעים “hangings” of spun byssus, and pillars with brass (copper) sockets, and hooks and fastenings for the pillars of silver. The pillars were of course made of acacia-wood; they were five cubits high, with silvered capitals (Exo 38:17, Exo 38:19), and carried the hangings, which were fastened to them by means of the hooks and fastenings. There were twenty of them on both the southern and northern sides, and the length of the drapery on each of these sides was 100 cubits (באמּה מאה, 100 sc., measured by the cubit), so that the court was a hundred cubits long (Exo 27:18).