Tanzite is a man-made stone (porcelain-like) created under extreme heat and pressure, engineered specifically for long-term outdoor performance.

What is the difference between the Appalachian and Rainier collections?

Appalachian installs like composite decking using hidden clips (not waterproof). Rainier is a free-floating system designed to be waterproof when installed over a subfloor.

Do the stones heat up in the sun?

All materials warm up, but Tanzite typically heats more slowly and doesn’t reach the same temperatures as similar-colour composites. Choose lighter colours for the coolest surface.

What warranty does Tanzite offer?

Tanzite advertises a limited lifetime warranty for its stone decking. Installation defects (e.g., lippage) are excluded—see the warranty page for details.

Where do orders ship from and how long does shipping take?

US and Canadian orders ship from Indianapolis, Indiana (typical delivery 1–6 days depending on location). European orders ship from Spain (about 3–7 days).

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Tanzite StoneDecks

Gasket Kit Rainier

Each Rainier piece comes pre-installed with 1 end gasket and 1 side gasket. Gasket kits provide additional or spare gaskets for use in areas where the pre-installed gaskets are not available. Gasket colours correspond to the colour of the Rainier pieces they will sit adjacent to.

Includes 5 of each (5 end gaskets and 5 joint gaskets)
Not affected by tariffs.

$49.95 AUD

Sale Sold out

Tax included.

Colour

Black

Warm Gray

Cool Gray

Brown

Carbon

Product variants

Quantity

5 of each (5 end gaskets and 5 joint gaskets)

This item can be shipped directly to your doorstep, ensuring a hassle-free delivery. Alternatively, if you’re curating the perfect deck, you can choose to have it delivered with the rest of your decking order. Whether it’s a standalone purchase or part of a larger ensemble, we’ve got your delivery needs covered.

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