87 x 87 Hot Tub Cover — Size, Fit and 11 Spas That Take It

A hot tub measuring 87" × 87" takes the AIRCAP 1™ Medium, which fits square spas 86–88". That is the whole answer — but measure your own spa before ordering rather than trusting the size of the cover you are replacing, because cabinets vary between model years and a cover bought to the wrong number is the most common ordering mistake there is.

Measure straight across the top of the cabinet, edge to edge, both ways. If the two numbers differ, use the larger one. If you land between two sizes, round up: an oversized cover overhangs by a fraction, which is how a spa cover is meant to sit, while an undersized one will not seal along the edges.

Which hot tubs are 87" × 87"?

11 of the 496 models in our Spa Fitter measure 87" × 87", across 4 brands. If yours is on this list, the size question is settled — click through for its own page.

Brand	Models measuring 87" × 87"
Hot Spring Spas	Aria, Vanguard
MAAX Spas	Model 470, Model 471, Model 472
QCA Spas	Coral Deluxe, Diamond, Diamond Deluxe, Ultra, Ultra XLP
Superior Wellness	Platinum Onyx

That makes 87" the joint 13th most common of the 18 square footprints in the Spa Fitter (11 of 496, 2.2%, level with 79" × 79" and 86" × 86"); the most common is 84" × 84" with 131. Next door, 86" × 86" lists 9 (plus 2 that round up) and 88" × 88" lists 7. No near-square model rounds up to 87"; every spa above is printed at exactly that. QCA Spas builds more at this size than anyone else — 5 of the 11; its other 16 square models sit at 78" × 78", 84" × 84", 85" × 85", 92" × 92".

What if my spa is not exactly 87"?

87" (221.0 cm) sits inside the Medium band — 86", 87" and 88" all take the same cover, so an exact 87" has room on both sides.

The Medium covers everything from 86–88" across, so you do not need to hit 87" exactly. Outside that band, the AIRCAP 1™ comes in six sizes spanning 77" to 94" — the two-measurement guide will place you, or you can look your model up directly in the Spa Fitter.

One limit worth stating plainly: these are covers for square spas. If your cabinet is round, octagonal or a rectangle, no size here will fit it, and the alternatives guide covers what will.

Nearby measurements: 86" × 86" · 88" × 88". Every size from 77" to 94" has its own page, listed on the Spa Fitter.

What an 87" × 87" cover costs

The AIRCAP 1™ Medium is $1,195 — the same price as every other size, including the pump, three Ziptech™ skirt depths and tie-down straps, with free shipping to all 50 states. There is no size surcharge, which is unusual in this category: most makers price a cover by its square footage, so a bigger spa costs more. For how that compares with foam and the other constructions, see what a hot tub cover costs.

It weighs 35–40 lb and, with no foam core to absorb water, never gains weight — the one number a foam cover cannot promise.

Frequently asked questions

What size cover fits an 87" x 87" hot tub?

An 87 inch square hot tub takes the AIRCAP 1 Medium, which fits square spas 86 to 88 inches across. Measure straight across the top of your cabinet both ways and use the larger number; if it falls between two sizes, round up.

Which hot tubs are 87" x 87"?

11 models in our Spa Fitter measure 87 by 87 inches across 4 brands (Hot Spring Spas, MAAX Spas, QCA Spas and Superior Wellness). Each one has its own page listing the cover size it takes.

Does an 87 inch cover have to be exactly 87 inches?

No. The AIRCAP 1 Medium fits any square spa from 86 to 88 inches across, so 87 sits inside the band with room on both sides. Only the larger of your two measurements matters.

How much does an 87" x 87" hot tub cover cost?

The AIRCAP 1 is $1,195 in every size, including the pump, three Ziptech skirt depths and tie-down straps, with free shipping to all 50 states. There is no size surcharge, so an 87 inch cover costs the same as the smallest one we make.