What size joist do I need to support a hot tub?

Standard 4×4 posts can be used for supports, and 2×8 joists will support the weight of most typical hot tubs. Check local building codes for footing requirements. Twelve inch on center spacing between joists underneath the hot tub will help provide extra support and 2×6 decking is preferred.

Can a deck be built around a hot tub?

Yes. Many people build decks around their hot tubs. You will need to have access to the service side of the hot tub, which is usually the front. You can leave this area without decking or plan a service hatch that will allow for a service technician to easily access the equipment if needed.

Is my deck strong enough for a hot tub?

In general, most decks can withstand 100 lbs per square foot. So if a hot tub like the one in the example is under that weight, the average deck should be able to support it.

Can 2×6 support a hot tub?

Use 6×6 posts and notch them to support at least two double 2×12 beams. Don’t use a ledger board or joist hangers when building a hot tub deck. Super-size to 2×10 joists installed on top of the beams and spaced at 12”o.c., 8”o.c. is preferable, though.

How do you build a deck for a hot tub?

To build such a hot tub deck, a perfect square must be determined. Pound stakes into the corners of the square, then determine the center point of the square. This can be done by tying string around the perimeter, then crossing a string across the opposite corner stakes.

Can a hot tub sit on a deck?

Hot tubs must be placed on a flat, level surface, such as a concrete slab or a deck, without any shims. Beyond that, many structural and design decisions depend on the particular hot tub chosen, so clients need to select their tub early in the process.

What are the requirments for a hot tub?

The electrical connection to the hot tub must be single phase, 220-240 volt 4 wire. A shoe box sized metal box, called a disconnect box, must be installed no closer than 5 feet from the hot tub and no further than 15 feet and must A “GFCI” (Ground Fault Circuit Interrupter) must be used.