This DIY fire pit is made from 3/8”, 7/16”, and ½” steel rod that I bought from Home Depot. I made a jig out of plywood to hold the pieces of rod at the right angle and then welded them together into a series of hexagonal frames. I made one frame with 22” long sides, two frames with 12” long sides, and one small frame with 6” sides. I used 2x4s and strips of plywood to position these frames before field measuring and cutting steel rods to connect them. This is a surprisingly affordable project if you own a welder and the result is an easyto move portable modern fire pit…
Lincoln Electric Mig Welder
RYOBI Compound Miter Saw
RYOBI Angle Grinder/>
RYOBI Jig Saw/>
RYOBI Circular Saw
STEP 1: Cut the steel rods.
I started with the 7/16″ rod which I will use to make the four hexagonal frames. I cut six pieces 22″ long, twelve pieces 12″ long and six pieces 6″ long using my angle grinder with a metal cutting wheel.
STEP 2: Making a plywood jig.
I cut a piece of 3/4″ plywood at a 30 degree angle with my compound miter saw. I trimmed a piece off of the corner with my circular saw before screwing it to another piece of plywood. I screwed additional piece of plywood to it to create channels for the 7/16″ diameter steel rods to fit into. I used my drill and jig saw to remove a piece of the bottom piece of plywood so that I would be able to reach the joint from different angles.
STEP 3: Welding.
I used my mig welder to weld the pieces of rod together. I did this from multiple angles and tried to fill in all the gaps as well as achieve full penetration on the welds. I welded the pieces 2 at a time and them took those pieces and welded them into hexagonal frames.
STEP 4: Make the bottom of the fire basket.
The smallest frame will become the bottom of the fire basket. I welded pieces of 1/4″ diameter rod to the frame to create sort of a grate that can hold the wood but let the ash fall through.
STEP 5: Weld the frames together.
I used 2x4s to raise one of the 12″ frames above the bottom of the fire basket. I field measured and then cut pieces of 3/8″ rod which I then welded to both frames. I started with the six corners before adding an additional three rods between each other. I bruised the joints that I welded with a wire brush and drill before going over them with the welder a second time to reinforce the joints.
STEP 6: Weld the middle frame to the bottom frame.
I raised up the 22″ frame over the 12″ bottom frame and then cut pieces to go in between. I tack welded these pieces in place and then flipped the structure over. I brushed the joints that I welded with a wire brush and drill before going over them with the welder a second time to reinforce the joints.
STEP 7: Trimming the rod.
I cut some of the rods a bit too long and so I used my angle grinder to trim them.
STEP 8: Connect the two pieces.
I placed the bottom piece over the fire basket and then cut pieces to weld them together. I started using bolt cutters to cut the rod which was faster.
STEP 9: Finish the fire pit.
I finished the fire pit over and then reinforced the welds before grinding them nice and smooth.
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