Things You'll Need
Instructions
Glue each end of each 10-inch pipe into the 3-way corner joints so you have a 12-by-12-inch square frame. The open end on each joint should be facing up when the frame lays flat. Glue a 1-by-8-inch pipe in each of these holes. Let the glue dry according to the instructions listed on the package. This is the frame for your mini adjustable platform.
Slide a 1-1/4-by-8-inch pipe over each 1-by-8-inch pipe and drill seven 1/8-inch holes through each of the four pairs of pipes so they're spaced 1 inch apart. Insert a 1-1/2-inch metal pin through each pair of pipes. These are the adjustable legs for your mini adjustable platform.
Turn your platform upright and set the 12-by-12-inch plywood on top of the PVC so the edges are flush. Drill eight 1/8-inch holes through the plywood so two holes go through each pipe. The holes should be spaced 6 inches apart. Bolt the plywood to the PVC pipe using the 1/8-inch bolts and your wrench.
Adjust your platform by removing the pins from the legs and extending the legs. Re-insert the pins when you have found your desired height.