Celebrating 50 Years of Hot Tub Excellence!

Complete Packages Start at $3,995.00

The Rubadub Tub® is a deep, round cedar or redwood hot tub that’s fully lined, insulated, and portable—offering the look, feel, and comfort of a traditional spa with added depth and spacious legroom for the ultimate soaking experience.

Custom Cedar Hot Tubs & Exercise Tubs – Handcrafted for Relaxation

Invented by Great Northern® in the mid-1970s, the Rubadub Tub® hot tub was the world’s first fully insulated, lined, and truly portable wooden hot tub spa—preserving the classic look, deep soak, and generous legroom of traditional cedar and redwood tubs.

At the heart of this innovation is our Poly-Tex™ shell, a smooth, watertight interior that’s far superior to vinyl. While often mistaken for vinyl, Poly-Tex™ is a high molecular weight thermoplastic—thicker, more durable, and easier to clean. It combines the beauty of acrylic with the flexibility and strength you need. And it’s backed by a 10-Year Limited Warranty for peace of mind.

The Rubadub Tub® is designed for comfort and customization. Adjustable seat heights so each person can enjoy warm water over their shoulders—where relief is needed most. Position jets for targeted therapy—feet, shoulders, back—you choose what works for your body.

Finally, a custom cedar hot tub that delivers real therapy, real comfort, and real results—your way.

Experience Affordable Luxury with the Rubadub Tub®

The Rubadub Tub® round cedar soaking tub gives you the space to truly unwind—with no cramped footwell like typical spas. That means more room for your legs, more comfort for your body, more room to stretch and a better soak overall. And with a starting depth of 44 inches, only the Rubadub Tub® delivers the deep, full-body relaxation spa lovers dream about—all in a portable, beautifully crafted wooden hot tub.

Rubadub Tub® Hot Tub Kits – Easy Assembly & Quality Craftsmanship

Includes: Benches, Pump, Filter, Heater, Jets, Plumbing, Std. Thermal Cover, Etc.
Wood: Pacific Coastal Western Red Cedar (Clear Heart / Kiln Dried)

View Our Hot Tub Kit

Included in the Rubadub Tub® Premier System Complete Kit are:

Rubadub Tub® Hot Tub Tanks Only – Standalone Soaking Solutions

Includes: Benches, Std. Thermal Cover. 
Wood: Pacific Coastal Western Red Cedar (Clear Heart / Kiln Dried)
Notice: No equipment, jets or piping. Typically used to replace an old tank when equipment can be re-used or when providing your own equipment.

Included in the Rubadub Tub® Premier Tank Kit are:

Cedar hot tub with a smooth, polished finish, designed for ultimate relaxation in an indoor setting.

Custom Cedar Hot Tubs and Exercise Tubs

Engineered for Performance – No Shortcuts, Just the Best
At Great Northern®, we took a hard look at every hot tub support system—and we made one thing clear: we don’t cut corners. Lesser tubs use undersized pumps, weak heaters, and basic filters. Not us.

Every Rubadub Tub® comes with a fully matched and tested system, featuring:
– A high-performance, energy-efficient, two-speed jet pump
Pressure filter for superior water clarity
– Dual-voltage electric heater (with gas and wood-fired options available)
– Directional hydrotherapy jets for targeted relief
– Complete plumbing kit, chemicals, and water test kit

Want more power or personalized comfort? Customize your system with additional jets, monster jets, or air bubblers for an even more therapeutic experience.

Truly Portable – Designed to Fit Where Others Can’t

Unlike bulky, molded spas that can’t fit through doorways or staircases, the Rubadub Tub® is made for real portability. It arrives in an easy-to-assemble kit, perfect for DIY enthusiasts or your local installer.

Need to move it later? No problem. The Rubadub Tub® can be temporarily reshaped as small as a 26-inch wide oval, allowing it to glide through standard doorways and down tight basement steps—something 700–900 lb molded spas simply can’t do.

Lightweight, flexible, and truly portable—Rubadub Tub® goes where others won’t.

Outdoor hot tub with build-in wooden surround and steps

Deep & Spacious Cedar Hot Tubs – Sizes from 3' to 12

Take Your Therapy — and Your Training — to the Next Level
Looking for more than just relaxation? Transform your Rubadub Tub® into a powerful swim spa with our optional Monster Jet system. As its name suggests, this beast moves hundreds of gallons per minute (based on pump size), making it perfect for resistance swimming, physical therapy, or deep muscle massage. With a built-in 3-way valve, you can easily control the flow between the Monster Jet and standard jets for a fully customizable experience.

The deep, spacious design of the Rubadub Tub® also allows room for full-body water aerobics and underwater treadmills, giving you endless ways to move, relax, and recover—all in one place.