What size of sonotube do I need?
I will be installing a 12’ x 14’ enclosure around my hot tub. The hot tub only will be sitting on a base of crush stones 0 / .75” and about 20” deep. I need to know what size of sonotube to use for my concrete posts (9 of them). The posts will be completely filled with concrete whit an adjustable patio support screwed on top of them. The frost line is 48”. The floor will be made of 2 x 6 pressure treated wood and spaced 12” apart. The contour, however, will consist of 2 pieces of 2 x 6 and .5” plywood between them; all glued and nailed together to fit properly in the supports. Thanks. MarcHRob