Oldcastle 43.5-in L x 43.5-in W x 12.5-in H Allegheny Concrete Fire Pit Kit

Add charm to a backyard or garden with the Allegheny flagstone fire pit kit, a convenient do-it-yourself retaining wall solution that offers a natural flagstone fire pit. First, start with site preparation and excavation. Stake out the area where the retaining wall block will be. Dig a small trench, so half of the block fits in the ground. Next tamp the soil in the trench to create a ridged surface. Add 1” of sand to the bottom of the trench. Then, start leveling and laying stones. Lay stone side by side and check that they are level. Then, stack additional courses with the construction adhesive staggered on the course below. Finally, stack stones in courses, staggering the joints to the wall height.