Hot Tub Decks

How To Plan for a Hot Tub on Your Deck

Looking to incorporate a hot tub (or spa) into your deck plans? We can help! Here are a few things to consider as you create your deck plan.

You can always reach us at 717-351-0913 if you have questions or would like a quote!

Deck Hot Tub Installation Options: Top-Mount & Inset (Sunk)

The two most common spa types for a deck are top-mount and sunk (or inset).

A top mount hot tub is placed on the deck surface and is ideal for adding a hot tub to an existing deck. This type is easier and most cost-effective when building a new deck.

A sunk-style hot tub for your deck requires a secondary deck that’s typically 16 to 20 inches lower than the upper deck. This option gives you a cleaner, more integrated look, but is more costly than a top mount.


  • Hot tub sits on deck surface
  • Deck might need to be reinforced to handle the weight
  • Easier to install on existing deck

Hot tub placed on deck surface.

Inset or Sunk

  • Blends in better with surroundings
  • Easier to get in to and out from compared to top-mount
  • Finished, resort-style look

Inset hot tub in deck.

Hot Tub Decks We’ve Built

Project Summary: This 620 square foot deck in Elverson has a lot of features: A built-in inset/sunk spa area for easy access & a built-in custom flower box for beauty and privacy.

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Grilling area on deck

Project Summary: This custom deck in Lincoln University, PA included a screened-in area and a space just outside it for a spa.

View Project »

Placement of a Hot Tub on Your Deck

  • Privacy Considerations: Placing your deck spa closer to your home is often better. A privacy screen, pergola or other design element will shield your space from the people next door.
  • Water Source: It’s convenient to have a hose nearby for quick and easy re-filling.
  • Appropriate Space: You want to be sure there’s room for the cover to lift without obstruction and that the spa isn’t blocking walkways.
  • Sun & Shade: Consider where and at what time of day the hot tub will get full sun, partial sun, and shade.
  • Maximize the View: Place your hot tub so you can enjoy a relaxing soak and the backyard scenery but at the same time not interfere with the view from inside the house.
  • Power: Your hot tub will need a ground-fault circuit interrupter (GCFI) electrical outlet nearby for power. A licensed electrical contractor will need to do the work.


Hot Tub Deck FAQ

How much does it cost to build a deck with a hot tub?

There are two common ways to include a hot tub on a deck.

Option 1: Set the hot tub on top of the deck. This is a less costly option and only requires adding more beams under the deck for support. The extra support beams cost approximately $1,000 more.

Option 2: Add a sunk hot tub. This option requires a secondary deck that’s typically 16 to 20 inches lower than the upper deck. The upper decking is then nicely notched around the hot tub. This option would cost approximately $5,000 to $7,000 more.

Is it safe to put a hot tub/spa on a deck?

Yes, but only if your deck is properly modified to withstand the extra weight.

Do I need to reinforce my deck for a hot tub/spa?

Yes. A reputable professional contractor will know what’s required by code.

Our Process

Our process is designed to make your planning and decision making a hassle-free experience. That’s why we rely heavily on collaboration and communication with you to ensure you get the deck of your dreams. We want to understand completely what you’re looking for, your budget, and your timeline.

Service Area

Our service area covers anywhere within a 1.5-hour drive of our Lancaster County shop. This includes all of Lancaster, York, Dauphin, Lebanon, Berks, Montgomery, Bucks, Delaware, and Chester counties. We’ve also worked elsewhere in Pennsylvania, including Cumberland and Adams counties.

Ready For a Quote?

Contact us to schedule an estimate for your project. A project manager will meet with you to learn what you’re looking for, discuss deck design possibilities, and show you material options. After that, we’ll prepare a detailed proposal and design rendering. Virtual meetings are available, as requested.

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