Beginner's Guide to Setting Up a Small Forge

Start with the space, not the tools

Before you buy a single hammer, work out where the fire will live. A small forge needs roughly three square metres of clear ground, a hard floor (bare concrete, quarry tile or compacted earth), and absolutely nothing combustible within a metre of the firepot. Sweep up sawdust, wood shavings and oil rags before you strike a match — a stray spark will find them.

Ventilation matters more than most beginners expect. A solid fuel forge needs a hood and flue, ideally 100–150mm diameter, drawing fumes up and out. Gas forges need an open door, a rolling shutter or an extractor, plus a carbon monoxide alarm fitted nearby. If you are in a smoke control area, check your local council's rules before burning house coal — many UK towns restrict it, and coke or charcoal is the straightforward answer.

Finally, think about noise. An anvil rings, and sound travels further than you think. Ear defenders protect you, but a friendly word with the neighbours and keeping sessions to reasonable daytime hours protects the whole hobby.

Safety kit you actually need

You do not need a full foundry suit, but you do need the basics, worn every single time.

• Eye protection: rated safety glasses, not just sunglasses. Scale flies hot and fast.
• Ear defenders: non-negotiable. Hammer on anvil is genuinely loud.
• A leather apron, ideally welder's grade. Avoid synthetics anywhere near the fire — polyester melts into skin.
• Leather boots with covered laces. No exposed synthetic trainers.
• Gloves on the tong hand only, well fitted. A loose glove on the hammer hand ruins your grip and feel.

Have a bucket of water or a quench tank within reach, a fire extinguisher, and a bucket of dry sand. Know where your first aid kit is, and treat any burn with cool running water for twenty minutes before anything else. Work with someone nearby if you can.

Fuel: the choice that shapes everything else

Each fuel has a personality, and picking the right one for your situation saves a lot of frustration.

• Smithy coal burns hot and cokes into a workable fire, but it smokes heavily on lighting and produces clinker you must dig out.
• Coke is cleaner and near-smokeless, excellent in built-up areas, though harder to light and quicker to burn down.
• Lumpwood charcoal is the easiest start for a beginner: light, fast, clean and clinker-free. It does burn away quickly, so expect to rake and top up often. Never use barbecue briquettes — the binders and additives are not what you want in a forge.
• Propane in a small gas forge gives instant, controllable heat with no ash, but it demands ventilation, a CO alarm and a little more care with the burner.

Anvil placement and height

Get the anvil height right and everything else feels easier. Stand relaxed, arms at your sides, and measure from the floor to the knuckles of your closed fist. That is your anvil face height — usually around 750–850mm for most adults. Too high and you lose power; too low and your back will tell you by lunchtime.

Set the anvil roughly one pace from the forge, so you can swing round with hot steel without walking. A seasoned elm or oak stump is traditional; a steel stand with a sand-filled base works just as well if you bolt it down. To quieten the ring, drape a heavy chain around the waist or fix strong magnets under the heel. Do not buy a cheap cast iron anvil-shaped object — a block of mild steel or a decent second-hand anvil with a hardened face is far better value. Ease the sharp edges of the face with a file before you use it.

Your first fire and first blows

Build a small fire — a shallow bowl of fuel, not a mountain. Light charcoal from the top so it burns down into the bed, and wait until you have a good core of glowing fuel before adding metal. With coal, let it coke first and keep the fire deep rather than wide.

Start with 10mm mild steel round bar. Bring it to a bright orange, not a sparkling white, and practise drawing out a taper. Use a hammer of around 500–800g with a dressed face and a hickory handle, gripped near the end, and let the hammer do the work rather than your shoulder.

Buy one decent pair of tongs sized to your stock instead of wrestling with pliers, and quench your work as you go. Keep your first sessions to an hour or two, make a simple hook or bottle opener, and stop while you are still enjoying it. Everything else follows from there.