A fire pit can’t be built on grass – it needs a firm, level base. Dig to depth of 1 course of stone within marked out circle. Excavate, then restore rod to position and make plumb.
To split large stones into smaller, evenly thick slabs, draw a line down stone where you want to split, then drill a series of holes along line.
Hammer plugs (known as ‘steel splinters’) into holes to fracture rock cleanly along line.
Guided by circle, lay outer and inner courses. Measure often to ensure outer edges of stones are equidistant from rod. Check each stone is level.
Chock gaps with biggest of small stones that fit.
Measure distance from rod to outer edge as each course is laid. Make each higher course slightly closer to centre to create inward slope.
Lay sandstone capping on top.
Remove rod. Put fire dish over hole. This fire dish was custom-made by Anavale in Bargo, NSW, but you can buy a ready-made dish from Bunnings.