Putting A Hot Tub On A Roof Deck

It seats four people and holds 195 gallons of water.

Putting a hot tub on a roof deck.

Sufficient for most hot tubs. Install decking up to from hot tub to leave room for expansion contraction and slight shifting of both the deck and the hot tub. It is very simple and you can buy the materia. A 3 1 2 to 4 inch slab is usually sufficient experts say.

Put your tub on a firm foundation whether a deck or patio with a cement pad concrete pavers brick or a new smartdeck pre fab alternative. The spa guy gives general information on how to reinforce a deck to keep the deck from sagging or even falling. Yes you can put a hot tub on a deck. Tall decks and hot tubs.

The area under the hot tub should be framed as a separate system with its own footings. But decks 2 feet or higher will need added support. How do you add more footing under the deck. Decks built ground level up to 2 feet off the ground can support up to 100 lbs per square foot.

Using the values above use the following formula to calculate the weight a hot tub will put on your deck. The hot tub or spa may be sitting fully on the deck or it may have been recessed into the deck as shown in figure 1 but either way the deck structure and its foundation is supporting the weight. However larger tubs may require something more substantial. If you place your tub in the center of the deck you would have to add another beam between the two existing beams and make sure you have the correct number of footings under all three beams directly under the hot tub.

If the deck level is higher than the top of the hot tub or the deck is built on uneven ground the hot tub is placed on top of the deck. Here s a link to a hot tub we ll use as an example in the formula. Check with local building code to determine spacing requirements for posts. Figure 1 hot tub on raised deck.

If you re building a new deck or patio pick the spa first so you can integrate it with the design. Build a solid deck base to support the hot tub weight. When it comes to structural support the safest bet is a solid base independent of the deck. A flat level surface such as a concrete slab is the ideal location for a hot tub.

Weight of hot tub number of gallons of water x 8 34 lbs number of people spa can seat x 185 lbs of square feet pounds per square foot. If you re building a new deck the slab should be formed and poured at the same time as your concrete footings. Most raised decks are constructed to hold a family maybe a few friends a barbecue and some outdoor furniture. All of these items are pretty light weight things when compared to a hot tub or spa that is filled with water.