8 September 2026

Setting Up a Small Workshop in a Garden Shed

By Colin Mercer
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Setting Up a Small Workshop in a Garden Shed

Start With the Shell, Not the Tools

Most sheds are built to keep a lawnmower dry, not to house a timber bench and a set of Sheffield-steel chisels. Before you hang a single tool, deal with the things you cannot change later: damp, draughts and power.

Line the walls with 25mm rigid insulation board or mineral wool between battens, then board over with plywood. Plywood is worth the extra cost over plasterboard because you can screw a cleat, a hook or a bracket anywhere without hunting for a stud. Keep a 25mm gap at the eaves for airflow so the structure can breathe, and never block any existing soffit vents.

Damp is what kills tools. A wooden floor on joists, or failing that interlocking rubber mats over a concrete slab, keeps your feet warm and stops condensation forming on cast iron. If your shed is unheated, an oil-filled radiator on a frost stat costs pennies to run and will save you a fortnight of de-rusting every February.

For electricity, have an armoured cable run from the house to a small consumer unit with RCD protection, installed by a qualified electrician. Fit double sockets above bench height rather than below it — shavings and sawdust always find their way to floor level, and so does the occasional dropped chisel.

Light You Can Actually Work By

Good light is not simply bright light. You need three layers, and they do different jobs.

  • Daylight is your reference. A window on a north or east wall gives you flat, shadow-free light through most of the day. If you only have one window, put the bench beside it, not facing into it.
  • Overhead task lighting should be LED batten fittings in the 4000K to 5000K range — cool white, close to daylight, with no noticeable flicker. Fluorescent tubes still found in older sheds can strobe against a moving saw blade or a plane in motion, which is both distracting and unsafe.
  • Raking light is the secret weapon of anyone working with hand tools. A small adjustable lamp set low and to one side will reveal the ridges left by a plane, the tear-out on figured timber and the gaps in a joint that even, overhead light hides entirely.

Wire the overhead lights on two circuits if you can, so you can light one half of the shed without flooding the whole space. For right-handed work, keep the main task lamp on your left so your own hand does not cast a shadow across the cut.

Workbench Height: Get This Right and Everything Else Follows

Bench height is the single most important measurement in the workshop, and it is personal. A bench that is too low will wreck your back on the first long planing session; one that is too high gives you no purchase for sawing and no leverage over a plane.

As a starting point, stand relaxed with your arms hanging. For heavy work — planing, ripping, mortising — you want the benchtop roughly level with the knuckles of a loosely closed fist. That usually lands somewhere between 850mm and 950mm for an average adult, but measure it on yourself rather than trusting the figure. For finer work, such as dovetailing, paring and fitting hinges, a bench 50mm to 100mm higher is far kinder to your neck and shoulders.

Many woodworkers solve this by building one bench at planing height and using a Moxon-style vice or a raised bench hook for detail work. If you are tall, do not be tempted to make a low bench and stoop over it — you will pay for it in your lower back within a year.

Position matters too. Leave at least a metre of clear space at each end of the bench so you can pass a two-metre board through a vice or plane a long stile without turning sideways. Bolt the bench to the floor or the wall if you possibly can; a bench that creeps across the floor is stealing your effort on every stroke.

Storage That Keeps Tools Sharp and to Hand

In a small space, vertical storage is everything. A solid plywood tool board on French cleats lets you rearrange hooks as your kit grows, and keeps chisels and gouges visible, dry and off the bench.

  • Store chisels and gouges edge-up or in a rack, never loose in a drawer where edges knock together.
  • A simple saw till on the wall keeps panel saws flat and true, rather than leaning in a corner where they will warp.
  • Keep timber off the floor and away from external walls — a wall rack with a few stout brackets is enough. Air must move around the boards.
  • Heavy items belong low: bench planes, mallet, sharpening stones. Light items high: cramps, marking tools, spare pencils.
  • Shallow drawers beat deep ones. If you cannot see the bottom of a drawer at a glance, you will not use what is in it.

Dust, Finishes and Everyday Safety

Hand tool work produces less airborne dust than power tools, but sanding and sawing still fill a small shed quickly. A lidded bin beside the bench, a broom with soft bristles, and a habit of sweeping up at the end of every session will keep the space pleasant and reduce fire risk from fine dust near a heater.

Finishes need air. Store oils, spirits and waxes in a metal cabinet away from any heat source, decant only what you need, and keep the door or window open while you work. Fit a smoke alarm, keep a dry powder or CO2 extinguisher by the door, and a small first aid kit on the wall where you can reach it with one hand.

Finally, treat the floor as a working surface. Keep it clear, keep cables tucked away, and keep a clear 900mm walkway from door to bench. A tidy shed is not a vanity — it is the difference between reaching for a chisel and reaching for a plaster.