It is not essential but it is strongly recommended. A mat stops heat draining into cold ground, protects the tub floor from grit and sharp objects, and adds a layer of cushioned comfort underfoot.
What size is a hot tub insulating mat?
Each foam tile is 57 x 57cm / 22 x 22in and 10mm / 0.4in thick. Nine tiles lock together with jigsaw edges to make 165 x 165cm / 65 x 65in, which covers most tub footprints.
Can I put a hot tub on grass?
Only if the ground is genuinely flat, level and firm. Grass compresses unevenly under the weight of a full tub, so a solid base is better. On a lawn, a ground sheet and insulating mat underneath are essential rather than optional.
What is the difference between a ground sheet and an insulating mat?
A ground sheet is a thin protective layer guarding against punctures and dirt. An insulating foam mat is thicker and also reduces heat loss through the base. Many owners use both, with the sheet underneath.
Can I put a hot tub on decking?
Yes, provided the decking is rated to carry the filled weight. The Adriatic holds 904 L / 239 gal and the Como 1,300 L / 343 gal, so check the load rating if unsure.
Hot Tub Mats & Ground Protection
A hot tub mat stops heat conducting out of the base of the tub into cold decking or paving, and protects the tub floor from grit and rough surfaces that cause wear over time.
The base is the second biggest source of heat loss after the water surface. Our insulating foam mat comes as 57 x 57cm tiles with jigsaw edges, and nine tiles make 165 x 165cm.
