Enter your space dimensions and hot tub size to check the fit — access paths, equipment clearance, and weight capacity.
Whether it fits depends on measurements most people get wrong.
Hot tub footprint + service clearance vs. available space
Item: 4-person hot tub: ~84" × 84" × 36" H (3,500 lbs filled)
Space: Minimum installation area: 10 × 10 ft with 24" service access
Actual clear openings are usually 1–2″ smaller than the labeled size.
Your exact dimensions probably aren't "standard." Small measurement errors cause big problems — 1 inch can be the difference between fitting and getting stuck.
Verdicts are calculated by comparing all 6 item orientations against the space dimensions using verified building code standards. See our methodology
Takes 10 seconds · No signup needed
“Checked 6 items against our new apartment in 10 minutes. Knew exactly what to order.” — New apartment
Measure smart
Four numbers decide nearly every fit check. Get these right and the rest follows.
Don't make these
Most “it didn't fit” stories trace back to one of these oversights.
Frequently asked
A 4-person hot tub is typically 78–84" square (6.5–7 ft per side). A 6-person tub is 84–92" square. Compact 2-person models start at 60" × 60". Always measure the specific model — sizes vary widely.
01A 4-person hot tub weighs about 3,000–4,000 lbs when filled with water and occupants. The tub itself is 400–600 lbs empty. This weight must be supported by the surface underneath — concrete pads, reinforced decks, or compacted gravel.
02Indoor installation is possible but requires floor reinforcement (3,000+ lb load), adequate ventilation (high humidity), waterproof flooring, and drainage. Most basements with concrete floors can support the weight, but get an engineer's assessment first.
03Related guides
More like this
Unlock stair simulation, AR visualization, and more.
Open the calculator and check any item against any space.
Open the fit calculator