When buying a hot tub, one of the most important decisions is selecting the right material for your needs. With options such as fully wooden tubs, polypropylene tubs, and fiberglass tubs, the choice can feel overwhelming. To help you decide, we’ve outlined the key advantages and drawbacks of each type so you can pick the best match for your lifestyle, location, and budget.
While a wooden hot tub offers an authentic, natural spa experience, polypropylene and fiberglass options bring modern benefits such as improved insulation, easy maintenance, and long lifespan. Below, we break down the main differences to make your decision easier.
Comparison of Hot Tub Materials
| Material Type | Main Advantages | Main Disadvantages |
|---|---|---|
| Fully Wooden | Completely natural look and aroma, handcrafted from sustainable wood types (Spruce, Larch, Thermowood, or Cedar). Lower price range. Ideal for rustic gardens and nature lovers. | Requires more maintenance and water retention; may leak during first days of use; heavier weight (up to 450kg). |
| Polypropylene | Excellent insulation (walls, floor, and lid), lightweight (~160–180 kg), fully customizable shapes (round, rectangular, or Ofuro style), long service life, and no leaks. | Slightly less natural feel, visible welds possible, higher price than wooden models. |
| Fiberglass | Premium appearance, conical ergonomic shape, smooth easy-clean surface, ideal for built-in installations. Excellent for modern terraces. | Higher cost, limited size range (1600–2000mm), and less natural than wood. |
Other Important Considerations
Beyond the material itself, remember to think about weight, maintenance level, and ease of installation. For example, a 300–450kg wood-fired model may need machinery for relocation, whereas lightweight polypropylene and fiberglass tubs can be carried by a few people. Proper foundation preparation and insulation are also essential for performance and safety.
Best Hot Tub for You
- Choose a Wooden Hot Tub – if you want the most authentic, natural spa feel with wood aroma and craftsmanship.
- Choose a Polypropylene Hot Tub – if you want a durable, low-maintenance, customizable, and leak-free tub.
- Choose a Fiberglass Hot Tub – if you prefer modern aesthetics, ergonomic design, and easy cleaning.
For eco-conscious buyers, TimberIN also offers eco-friendly tips for greener hot tubs and sustainable heating systems like smart pellet stoves.
FAQ – Choosing the Right Hot Tub Material
Which hot tub material is best?
It depends on your needs. Wooden hot tubs are traditional and natural, polypropylene tubs are durable and customizable, while fiberglass models are modern and easy to clean.
Do wooden hot tubs leak?
Minor leaks are normal during the first few days as the wood expands. Once saturated, wooden hot tubs become watertight.
Which hot tub is easiest to maintain?
Polypropylene and fiberglass hot tubs require the least maintenance. Wooden tubs need regular cleaning and oiling.
Can I install a fiberglass hot tub in a terrace?
Yes, fiberglass hot tubs are ideal for built-in or sunken installations due to their rigid frame and lightweight structure.