Starting from the stem’s mount point, calculate the approximate distance the arm of the hoist will need to swing out from your balcony in order to provide sufficient clearance when you’re lifting up an item.
If you plan to hoist up any bulky items, be sure to account for any possible rotation on the way up.
Thread one end of the outer stem and attach the 1½" metal flange. (Home warehouse stores usually cut and thread pipes for free if you purchase them there.) Then thread one end of the hoist’s inner stem.
Connect the inner stem and the metal pipe nipple into the 1" metal tee, so that they’re in line with one another.
Insert the longer segment of the inner stem into the outer stem.
The resulting apparatus will stand vertically on your balcony. Trim it so that it’s approximately ½" less than your balcony’s height. Make sure to thread and trim your hoist’s outer arm.
Use a drill and hole saw attachment to bore holes approximately ¾" deep into the 2 wood squares. Each hole should accommodate one end of the stem.
Attach the small wood blocks to the corresponding end of the stem apparatus from Step 3, and stand it up vertically.
Make small adjustments to the metal pipe with the hacksaw until the full stem fits flush between the floor and ceiling. Ensure that the inner stem swivels comfortably by widening the hole in the upper wooden block as necessary.