This is the kit we use to build our 36″ octagon Custom Stone Fire Pit. It measures 27″ across from flat edge to flat edge and can be custom sized from 12″ to 24″ in height. Comes complete with everything you need to build your fire pit except the cement board and finish materials.
These kits make it easy for you to create a true custom gas fire pit. Skin the frame with cement board and then add your choice of finish materials over the cement board. The fire pit frame takes the guesswork out of how to support your burner ring and fill material (lava rock, glass, outdoor logs…).
To determine actual finished fire pit size:
For Width Add: 1/2″ per side for cement board, 2″ per side for stone veneer, 2″ per side for top material overhang. (ie: 27″+1″+4″+4″=36″)
For Height Add: 1/2″ for cement board, ?” for thickness of top material. (ie: 16″ frame height + 1/2″cement board + 2″ stone top = 18 1/2″)
These dimensions are approximate and will vary dependent on the actual material thicknesses you use.