If you're looking to create a similar fire pit to Ian's and unsure what blocks to use to construct the fire pit, Adam explains, "Any bricks or blocks used where there is direct contact with flames should be 'refractory' or heat resistant products. Single best way is to contact the supplier or manufacturer as some blocks may be suitable for such use but not technically be 'refractory' products. I would imagine that any product with a BAL-FZ rating would be suitable. Other option is to use a drop-in fire pit that's designed for the purpose."
Following on from Adam's advice, resident Bunnings D.I.Y. expert Mitchell added, "Our Ezi Wall Lite Retaining Wall Block Charcoal requires a steel buffer between them and the fire. This could be a sheet of steel run around the inside perimeter or, as mentioned, perhaps you could have a Jumbuck Rustic Iron Fire Bowl with Stand in the middle to hold the fire and then clad around it with the blocks. Whichever method you choose, the bricks can not be in direct contact with the flames."
More fire pit projects
Using Merbau screens as fencing and in a custom bench seat design, Workshop member lcooksey88 created an outdoor haven dedicated to gatherings around the fire pit.
By building a lid for his fire pit that matches his bench seats, Workshop member Raymond’s fire pit doubles as a small table for year-round entertaining.