For gas fire pits, Yes absolutely! And not only can you use a fire pit on your deck but it is also safe to use a fire pit on a deck as long as you use a fire pit deck protector or fire pit heat shield under it.
A fire pit deck protector or fire pit heat shield also known as fire pit heat deflectors are protective materials specifically designed for used under the fire pit to protect the surface under the fire pit from damage as a result of the extreme fire pit heat. Fire pit pads or fire pit heat shields are basically insulative materials making them prefect for use under a fire pit on grass, wooden deck or any other surface and can generally with stand temperatures of up to 1400 degrees. The usual fire pits average 1,000 to 1,200 degrees.
With a fire pit pad or fire pit heat shield, you can safely enjoy the warmth of your fire pit knowing that your deck, grass or any other floor surface is protected from damage.
Effective fire pit pads and fire pit heat shield mats for use on a wood deck or grass include;
Fire Pad Deck Protector By Newtex
This is the cheapest of the lot, currently under $60. These deck protectors are available in 2 sizes: 16″ diameter or 24″ diameter.
They are made with Z-Flex Aluminization and Z-Block fire protection fabrics, the main components that protect from the risks of heat and fire.
Deck Defender & Grass Guard – Fire Pit Heat Shield
Is a 26″ x 26″ that will fit most standard fire pits 18 to 36 inches.
It is 100% fire-proof all metal constructed. Features a high shine for reflecting heat, and multi layered metal air spaces for a natural insulation effect. It sits above the surface to provide airflow and prevent moisture from accumulating beneath it.
Deck Protect Fire Pit Mat & Rack
Available in sizes, 12″, 16″, 24″, 27″, 30″, 36″. It is layered with carbon filler and woven with volcanic rock fibers to ensure it is total protection against heat.