Free-standing plunge tubs
Insulated stainless tubs on a welded base or legs, with a step, seat ledge and lid.
Custom fabrication · Outdoor living
Cold plunge tubs, welded from one sheet of stainless.
Cold plunge tubs
Seamless welded 304 or 316 stainless plunge tubs and ice baths, insulated and built to the size you actually want — not the size a shipping container allowed. Chiller-ready, drain and overflow fitted, and no plastic liner to crack or stain.
Indicative pricing · NZD
$3,200
from, + GST
Typically $3,200–$7,500 + GST for the tub, before chiller and plant
Price guide & quoted scopeOr call Matt 021 2555 443
- 304 or 316
- 316 for coastal and salt air
- Insulated
- Closed-cell jacket, clad or bare
- Chiller ready
- Ports, drain and overflow fitted
02 / Price & scope
Indicative cold plunge pricing.
Indicative range only. Size, gauge, 304 versus 316, insulation, cladding and fittings all move the price. Chillers, filtration and sanitiser are supplied and fitted separately.
Discuss your quote with MattCustom stainless plunge tub
From a plain ice bath through to an insulated, clad, deck-recessed tub.
$3,200from, + GST
Typically $3,200–$7,500 + GST for the tub, before chiller and plant
Details to agree for your job
- Seamless welded 304 or 316, no liner
- Closed-cell insulation and optional cladding
- Drain, overflow and chiller ports fitted
- Any size — built to your deck or room
Scope & other costs
Off-the-shelf plunge tubs are usually sold as a package with a chiller. Here the tub is priced on its own, so you can pair it with whatever chiller and filtration you want — or none at all.
03 / Also built here
Plan the rest of your project.
Explore related products, or talk to the Patumahoe workshop about stainless steel, aluminium and mild steel fabrication.
Outdoor kitchens
316 stainless outdoor kitchen carcasses, benchtops, doors and drawers built around your appliances.
Rock sliders & side steps
Chassis-mounted rock sliders, side steps and rails, welded to fit your ute or 4WD.
Stainless cabinets
Enclosed stainless storage with doors, shelves and drawers arranged for your room.
04 / The practical details
Questions about stainless steel cold plunge tubs and ice baths.
Does the price include a chiller?
No. The tub is priced on its own so you can choose your own chiller, filtration and sanitiser, or run it on ice. We fit the ports, drain and overflow to suit the unit you pick, and can install a supplied chiller.
304 or 316 stainless?
304 is fine indoors and in most inland situations. 316 is the choice within a few kilometres of the coast, or if the water is heavily chlorinated or salt sanitised.
Can it be built into a deck?
Yes. Deck-recessed tubs are built with a flange that sits flush with the decking, so only the rim and lid show. We work from your deck framing dimensions.
How long does one take?
A straightforward tub is usually a few weeks from confirmed drawings. Insulated and clad tubs with a plant enclosure take longer. We give a date with the quote.
How it works
Spec, quote, fabricate, fit.
01
Spec
We confirm size, materials, the loadings or spec and how it will be used.
02
Quote
It is all priced before any steel is cut, so there are no surprises.
03
Fabricate
Built in the Patumahoe workshop to the agreed spec.
04
Fit
Delivered, fitted or installed and checked over before handover.
Let’s make it fit
Show Matt what you’re working with.
Send through photos, rough measurements and how it’ll be used — we’ll come back with a practical next step and a price.