Building a Simple Firewood Rack: A Weekend Welding Project

Learning how to weld a firewood rack makes for the perfect second welding project. Certainly it’s bigger than flat plate practice but straightforward enough that a beginner can complete it in a weekend. The joints are T-joints where the rails land on the frames, and mitered butt joints at the frame corners — exactly what you’ve been practicing. The material is cheap. And when you’re done, you have something functional that’ll last 20 years.

I built a smaller version of this rack that rides along on camping trips. Mine was cobbled together from scrap in the shop, so it is part angle iron and part square tubing — whatever was in the rack that day. It works fine. Of course, if I were building a nicer one for the house, I would use all square tubing and follow the steps below.

How to Weld a Firewood Rack: Design First

A basic firewood rack is two end frames connected by horizontal rails that hold the wood. Standard dimensions:

• End frames: 16″ wide x 18″ tall (adjust for your wood length and storage height preference)
• Overall length: 4 feet is standard; 8 feet if you want serious storage
• Number of rails: 3 per side (bottom, middle, top) keeps logs from rolling

Of course, sketch it out before you cut anything. Write down your cut list. Count the pieces. This step costs nothing and prevents wasted material.

Cut List (for a 4-foot rack)

Step 1: Build the End Frames

1. Lay two uprights parallel on a flat surface, 16″ apart. Generally a welding table makes this whole project easier — a flat steel top gives you a reference you can trust when you check diagonals, and it gives you something to clamp to. A flat concrete floor or a sheet of plate on sawhorses works too. Just check your surface with a straightedge first, because a frame built on a twisted table comes out twisted.
2. Position two crossmembers against the uprights — one at the top, one at the bottom — so each pair of 45° miters meets flush and forms a closed 90° corner. Check square by measuring diagonals. Equal diagonals = square frame.
3. Clamp everything in position.
4. Tack each corner — one tack on each side of each joint. Don’t finish-weld yet.
5. Check square again. Heat from tacks can pull a corner. Adjust before finish-welding.
6. When square is confirmed, weld each corner all the way around — all four sides of the tube. Besides looking finished, a corner welded all around seals the tube so water cannot get inside and rust it out from within. That leaves the open tube ends, and either fix works: plastic push-in caps are cheap, come in standard sizes, and take about a minute for the whole rack; welded steel plate is permanent, cannot pop out, and disappears under paint once you grind it flush. Dealer’s choice — just do not leave them open.
7. Repeat for the second end frame. Make them identical — lay them on top of each other and compare if needed.

Step 2: Connect the End Frames

1. Stand both end frames upright, parallel to each other, 48″ apart.
2. Clamp the first rail to the bottom of both frames. Check that both frames are plumb before tacking.
3. Tack the rail to both frames, then step back and look at the whole assembly. Is it square? Are the frames plumb?
4. Add the remaining rails — middle and top positions on each side.
5. When the assembly looks right, finish-weld all rail connections.

Generally, this is where having a second pair of hands helps, or a few extra clamps to hold the frames in position while you tack. Either works.

Step 3: Optional Improvements

Diagonal brace. If the rack feels racking (twisting when you push on it), weld a diagonal brace from one bottom rail connection to the opposite top rail connection. This triangulates the structure and eliminates the movement.

Feet. In fact, the bottom of the end frames will sit on the ground and rust over time. Weld small flat plate pads (3″ x 3″) to the bottom of the uprights to spread the load and keep the tubing off wet ground.

Log stops. Weld short vertical stubs (4–6″ pieces of the same tubing) to the ends of the bottom rails to keep logs from rolling off the ends. Optional but useful on uneven ground.

Beveled edges. For a more professional look, bevel the mating faces of your miters slightly before you weld. Grinding a chamfer along the joint edge gives the weld somewhere to go, so the bead sits down in the joint instead of piling up on top of it. Then, once the welding is done, you can finish-grind the welds flush and there will still be plenty of meat left in the joint to keep the frame really strong. Consequently the corners read as solid formed steel rather than welded tube — and after paint, linseed oil, or powder coating, it looks great.

Time and Materials

Plan on a weekend, though the work itself is closer to a long afternoon. Cutting and mitering the sixteen frame pieces takes about an hour once your saw is set to 45°. Building and squaring both end frames runs another hour to ninety minutes, and that is the part worth slowing down for. Connecting the frames and welding the rails takes roughly an hour. Grinding, capping the tube ends, and cleaning up the welds adds an hour. Paint or oil goes on quickly, but cure time is what stretches the job across two days.

On material, a 4-foot rack works out to about 23 feet of 1″ square tubing for the frames and 24 feet of 3/4″ round bar or tubing for the rails. Since both usually sell in 20-foot sticks, buy two of each. That leaves you well past a 10 percent cushion, which is the right way to buy it — a blown miter or a cut on the wrong side of your mark costs you a piece, and driving back to the supplier costs more than the extra steel. Beyond that you need push-in caps or scrap plate for the tube ends, a can of primer and one of exterior paint, and your usual wire and gas.

Steel pricing moves with the market and varies quite a bit by region, so call your local supplier for a current number rather than trusting a figure from an article. Generally the tubing is the bulk of what you will spend; the caps, consumables, and paint are minor by comparison. In fact, if you have a drop rack in the shop, this is a good project to raid it — the rails in particular do not care what they look like.

Finishing

Wire brush all welds. Inspect for any spots that look like they might have poor fusion.

Moreover, paint or apply rust inhibitor before it goes outside. However, bare steel rusts fast in contact with wet wood. A coat of rattle-can rust-inhibiting primer, followed by any exterior paint, adds years to the rack’s life. Alternatively, boiled linseed oil gives a warm satin finish that suits a shop-built piece and is easy to refresh each season, while powder coating costs more and means farming the frame out, but it is by far the most durable option. Naturally, any of the three works better on ground-flush welds than on proud beads.

What You Learned

This project covers T-joints (rail to frame), mitered butt joints (frame corners), squaring an assembly, and multi-piece fit-up. Moreover, those skills transfer directly to every structural project you’ll do in the shop. Ultimately, learning how to weld a firewood rack is a small job, but the techniques are the same ones used on trailer frames and farm equipment.