The Garden Range

Hot Tub Base Kit – 231x231cm Square

A square base kit for hot tubs with a footprint up to 231x231cm

Why go through such a labour intensive and potentially difficult installation by using concrete or paving slabs for a base when you can use our weather proof, no-rot, incredibly strong, easy to install and permeable hot tub bases!

  • Suitable for: Spas up to 231cm x 231cm
  • Depth: 40mm
  • Number of panels: 52 Panels
  • Made from: Recycled Plastic
  • Max load: Up to 420 Tonnes
  • Kit contains: 2 boxes containing 20 X-Grid Panels, 2×1.35m membrane and 5x 3mm Steel u-Pins and 1 box containing 12 X-Grid Panels, 2×1.35m membrane and 5x 3mm Steel u-Pins
IN STOCK - Delivery within 3-5 working days
Delivery costs will be calculated at the checkout page

£116.91

Product Code HTB-049
If you have a question which hasn’t been answered here, feel free to ask one
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What are your hot tub bases suitable for?

Our plastic hot tub bases are incredibly effective and versatile. They are a suitable foundation for almost all hot tubs and swim spas. Please contact us if you are unsure of compatibility.

Can I use the plastic hot tub base panels under an inflatable hot tub.

We do not recommend this, as the plastic tub base panels can sometimes have sharp edges which may catch on the soft material and potentially damage the inflatable hot tub. We do have inflatable hot tub bases, which are perfect for supporting your blow up hot tub.

What sub-base do I need under my hot tub base?

We recommend you prepare the ground below your base with approximately 100mm of a compact hard base (type 1 or type 3), a weed-suppressing membrane and sand to level.

What is the difference between compact hard base type 1 or type 3?

Compact hard base, type 1 is much finer and can occasionally dust while the compact hard base, type 3 is larger and more permeable.

Can I put the base straight onto grass or soil?

We recommend not installing directly onto grass or soil but instead, install onto a compact hard base as it creates a sturdy, even base. Soil or grass can and will most likely will absorb water leading to sinking and creating an uneven sub-base for your spa base.

Can your plastic bases be installed on to concrete slabs/pads?

Yes, they can be installed onto concrete slabs or pads as long as the existing ground is strong and level. The base will allow airflow under your spa and elevate it away from any potential surface water.

How much gravel or aggregate should I use to fill my base?

Approximately 8kg of gravel or aggregate is required to fill each panel, or 72kg per m².

What size gravel should I use?

We recommend using anything up to 20mm in size.

Does the base need to be filled with gravel?

Our bases are more than strong enough without a gravel fill, able to withstand up to 420 tonnes per sqm. The gravel can be used to compact and enforce even more whilst also being a decorative finish.

Does this product come with pins or membrane?

Yes, our hot tub base kits come with pins and a sheet of membrane.

Can the plastic base panels be cut to size?

Yes they can be cut and we recommend doing so with a fine tooth saw.

Do I need pegs or anchors to secure my base?

Pegs and anchors to secure you base are only necessary when installing on areas which have a gradient over 12%.

How do I know which side of the panel to put down?

The bottom of the base has ‘X-Grid’ written on it, indicating the face you put on the ground.

Can the base panels be stacked on top of each other?

No, they are not designed to be stacked.

Where can I find installation instructions?

Install guides can be found on the ‘downloads’ tab. In addition, more information on installations can be found through our blogs and YouTube videos.

Can I create a grass base with the use of your hot tub base?

Yes, grass can grow in the panels cells when correctly filled with soil and seed.

Do your plastic hot tub bases have a warranty?

Yes, our bases have a 10 year manufacturer warranty.

Can I be guaranteed the same colour all throughout my product?

Our products are new generation, manufactured entirely from post-consumer recycled plastic; this means you may occasionally find very slightly different shades of colour.

How much is delivery?

The cost for delivery can be seen when you add your product to basket and at checkout.

About The Plastic Hot Tub Base Kit

Manufactured here in the UK and made entirely from recycled polyolefin, our bases are Lloyds British tested to be able to withstand up to 420 tonnes per square metre. As well as being incredibly tough our bases are very easy to put down and can be done easily without any training thanks to its lightweight frame and simple to use slot and peg connection. Being made of plastic and with an open structure, each base is UV and weather-resistant so will not rot or break down as other foundations may and are permeable so any spilt water or rain can drain naturally away from your hot tub reducing the likelihood of water damage to your spa. Suitable for all types of spas, our bases are effective regardless of what is installed on top of them.

Is This Foundation Suitable For My Hot Tub?

Our bases have been designed and manufactured to ensure they are suitable for use with all makes and models of hot tub and spas. One of our major selling points is the fact that our base can be used across all ranges so we don’t ignore any part of the spa market. This particular base size is perfect for all square hot tubs with a footprint of up to 231x231cm. To see if your spa is compatible simply compare the measurements provided on the product listing to your spa dimensions. If they are not, worry not, we have a wide range of different sized bases on our website. For some help in finding your base, you can call us, live chat us or leave a message to discuss your specific needs which we will be able to meet.

For more information on installing your hot tub base please read our Install Guide.

Weight 27.93 kg
Dimensions 2310 × 2310 × 40 mm

Installation Guide

Hot Tub Base Installation Case Study - 6ft x 6ft
6ft x 6ft Hot Tub Base Case Study - Featured Image
A case study from a past customer who used a 6ft x 6ft hot tub base under their new Canadian Spa Company Hot Tubread more ❯
8ft x 8ft Hot Tub Base Customer Review
8ft x 8ft Hot Tub Base Install Featured Image
A case study from Nick who used an 8ft x 8ft hot tub base from us as the foundation for a new hot tubread more ❯
Tahiti Spa Hot Tub Base [Customer Review]
8ft x 8ft Hot Tub Base Featured Image
A review from William and Mark who used an 8ft x 8ft plastic hot tub base as a foundation for their Tahiti hot tubread more ❯
7ft x 7ft Hot Tub Base - Customer Review
7ft x 7ft Hot Tub Base - Customer Review Featured Image
A case study from Joe who transformed his garden and used our plastic hot tub base as the foundation for his new hot tubread more ❯
49 Panel (7ft x 7ft) Hot Tub Base Installation - Customer Review
7ft x 7ft Hot Tub Base Installation - Customer Review Featured Image
See how Gary & Sheena used our plastic hot tub base as a solid foundation for their new hot tubread more ❯
Customer Review - 7ft x 7ft Hot Tub Base Kit Installation
7ft x 7ft Hot Tub Installation - Featured Image
See how David used a 7ft x 7ft hot tub base kit as the foundation for his new Blue Whale Spa Hot Tubread more ❯
7ft x 5ft Canadian Spa Company Hot Tub Base Installation
7ft x 5ft Hot Tub Base Install - Featured Image
Installation from Carl who used a 7ft x 5ft hot tub base under his new Canadian Spa Company Hot Tubread more ❯
7ft x 7ft Plastic Hot Tub Base Under An Artesian Spa Hot Tub
7ft x 7ft Hot Tub Base Under An Artesian Spa Hot Tub - Featured Image
See how a 7ft x 7ft hot tub base was installed by Tony under his new Tropic Seas Hawaii Hot Tubread more ❯
Typhoon 6 Seater Hot Tub Installed On Our 7ft x 7ft Plastic Base
7ft x 7ft Hot Tub Base Featured-Image
Stuart used one of our 7ft x 7ft hot tub bases under his new Typhoon 6 seater hot tubread more ❯
Inflatable Lay-Z-Spa Hot Tub Base - Customer Installation
Inflatable-Hot-Tub-Base-Featured-Image
Simon used our black inflatable hot tub tiles as a foundation for his new Lay Z Spa hot tubread more ❯
Product Reviews
Ian D.
Ian D.
Verified ownerVerified owner
5/5

Great service from The Garden Range. So much easier than installing a concrete base.

5 days ago
Anonymous
Anonymous
Verified ownerVerified owner
5/5
4 weeks ago
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