It might be tempting to plonk your inflatable spa straight on the grass or patio and call it a day. But here’s the thing—what you put underneath really matters. A proper base protects your hot tub, keeps it comfy, and even saves you money on running costs.

Short answer: yes, you do. Let’s dive into why it’s such a game-changer.

The Importance of a Proper Base

Protecting the Hot Tub

Imagine setting up your new spa, filling it with warm bubbly water, and then—pop!—a sharp stone punctures the base. Heartbreaking, right? A solid base acts like armour, shielding the vinyl from stones, roots, or anything lurking beneath.

Providing Stability and Levelling

Ever tried balancing a mug of tea on uneven ground? That’s your hot tub without a proper base. Soft soil and dips can make it sink or tilt, messing with water levels and stressing the pump. A flat, sturdy base keeps everything stable so the spa works as it should.

Enhancing Comfort

If you’ve ever sat on a hard floor for too long, you’ll know the value of a little cushioning. The same goes for your spa. A padded base makes the floor softer underfoot, turning a good soak into a great one.

Improving Insulation and Energy Efficiency

Here’s where things get practical. Without insulation, your spa’s heat seeps straight into the cold ground. That means higher bills and cooler water. A decent base keeps the heat where it belongs—in the tub—so you can enjoy longer, cosier dips without the energy guilt.

What Are the Best Hot Tub Base Options?

Now that we know why a base matters, let’s talk about what to put under your inflatable hot tub.

Permanent and Semi-Permanent Bases

Concrete Slabs

Rock-solid, durable, and reliable. Once it’s down, it’ll last for years. The flip side? It’s expensive, hard to install, and you won’t be moving it once it’s set.

Pavers and Paving Stones

Stylish and tough, paving stones make for a smart base. Just be sure the ground beneath is properly prepared—no one wants shifting slabs after the first rainstorm.

Crushed Gravel

This is the budget-friendly hero. Gravel is easy to lay, drains brilliantly, and provides a stable surface. Just rake it level and you’re set.

Quick and Portable Bases

Foam or Rubber Hot Tub Pads

Think of these as the “plug-and-play” version of spa bases. They’re lightweight, insulating, and designed specifically for hot tubs. Pop them down, and you’ve got instant cushioning and protection.

Interlocking Foam Tiles

Easy to put together, easy to take apart. They’re affordable, customisable, and give you a comfy surface under your tub. Plus, you can reuse them if you move house.

Ground Cloth or Tarp

A ground cloth on its own won’t cut it, but as an extra layer of defence, it’s handy. Just don’t rely on it as your only form of protection.

Where to Place Your Inflatable Hot Tub

So, you’ve sorted your base—now comes the big question: where’s the best spot for your spa?

Choosing the Right Location

On a Patio or Deck

Decking looks great, but remember: a filled hot tub is heavy. Always check the weight capacity before setting up. Patios are ideal, as long as they’re flat and stable.

On a Lawn or Grass

Plonking a spa straight on grass might sound fine, but it quickly becomes a muddy mess and can kill the lawn. Always put down a proper base first if this is your only option.

On Artificial Turf

Good news—artificial turf can work well as a base, provided it’s laid over solid ground. Pair it with foam tiles or a mat and you’re good to go.

A proper base isn’t just an extra—it’s essential. It protects your inflatable hot tub, keeps things comfy, and helps you save money in the long run. So before you grab the bubbles and hop in, take a little time to set things up right. Your future self (and your hot tub) will thank you.