How to build a concrete pad for a hot tub. When you choose the place you must dig up the grass and the soil about 3 4then make a frame using the board about 118 l x 78 w. Firstly you prepare the space that you will build to be hot tub base pad. The disadvantage is it can be expensive and it is not very environmentally friendly as some of the other options detailed in this article.
Layer with crush stone and wire mesh to keep the concrete from shifting or cracking. Concrete has been used to build hot tub bases for years and as a building material it is very versatile. When building a landing for deck stairs typical codes require the pad to extend beyond the steps about 36 inches behind the steps about 12 inches and on the sides of the steps about 6 inches.
Remove all the grass and dig down at least 6 8 inches to prepare the base for your concrete spa pad. It is easy to make level and will out live your hot tub if built correctly. A typical pad has a 4 inch layer of gravel underneath and about 4 inches of concrete on top.
Now you just fill the frame with an amount of crushed stone and make sure that you spread the stone smoothly. Step 7 wait two days before removing the wooden forms from the footings. Cut a two by four 4 feet longer than the width of your hot tub pad to use as a screed board.
Fill and pour spread and level an inch of fill sand in the bottom of the pad forms.
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