Create Plywood Frame Rings
At 2:28 in
I Built A Cold Plunge With Filtration That ACTUALLY WORKS
What happens here
A sheet of subflooring plywood is used to create two oval rings that will form the top and bottom of the wooden frame. The builder places the 150-gallon poly tank directly onto the plywood and traces its outer perimeter. He then measures and marks an additional 3.75 inches around this traced line to accommodate the 2x4 vertical supports and insulation, creating the outer edge of the frame. A piece of 2x4 is used to accurately trace the inner curve for the tank's recess. After cutting out the first set of inner and outer oval pieces using a Ryobi jigsaw, he realizes he needs two identical rings (top and bottom) and must purchase an additional sheet of plywood to complete this step.
Goal: The builder prepares the top and bottom rings for the wooden frame by tracing the tank onto plywood and cutting out the oval shapes. He corrects an initial material miscalculation.
Tools and materials
- 2x4 wood
- 4x8 sheet of Subflooring Plywood
- Jigsaw
- Measuring Tape
- Pencil
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