Make the curtains on one side fifteen cubits long, with three posts and three bases,
Before the tabernacle there was to be a court or yard, enclosed with hangings of the finest linen that was used for tents. This court, according to the common computation of cubits, was fifty yards long, and twenty-five broad. Pillars were set up at convenient distances, in sockets of brass, the pillars filleted with silver, and silver tenter-hooks in them, on which the linen hangings...
Commenting on Exodus 27:9-19
The hangings of one side of the gate,.... Or entrance into the court: shall be fifteen cubits; or seven yards and a half: their pillars three, and their sockets three; and so stood at the same distance from one another as the rest of the pillars did, the distance of five cubits.
The hangings of one side [of the gate shall be] fifteen cubits: their pillars three, and their sockets three. (f) Of the door of the court.