Making wooden toys for children safely

Start with timber that is genuinely fit for play

Everything else in a wooden toy follows from the timber you pick up. For anything likely to be mouthed, dropped or chewed, choose close-grained hardwoods that hold a crisp edge and resist splintering: beech, maple, ash, cherry and birch plywood all behave well under a child's hands. Beech is the traditional choice for rattles and teethers because it machines cleanly, takes a fine sanded finish and stands up to repeated washing.

Some species are best left on the shelf. Yew, laburnum, oleander and several other ornamental woods contain natural toxins and should never become a child's toy. Iroko, teak and some tropical hardwoods carry irritant oils and dust that will trouble your lungs long before they trouble a child. Oak is lovely but its open grain and tannins make it a poor choice for anything under three. Softwoods like pine splinter easily along the grain, so reserve them for painted decorative pieces rather than playthings.

Equally important is where the timber came from. Skip reclaimed pallet wood, pressure-treated garden timber and any old painted boards, which may harbour preservatives or lead-based paint. Buy kiln-dried stock at 8–10 per cent moisture content and let it acclimatise in your workshop for a week or two before machining. Movement after the toy is finished is what cracks joints and opens grain.

Design shapes that forgive a fall

Children are wonderfully unkind to toys. Every design decision should assume the piece will be thrown, sat on and chewed.

• Ease every edge with a 3mm roundover bit or patient hand-sanding. Nothing on the surface should catch a fingernail.
• Sand through the grits: 120, then 180, then 240. Raise the grain with a damp cloth between passes and sand again.
• Avoid long, thin protrusions — handles, ears, axles — that snap into sharp points.
• Watch the gaps. A slot or hinge gap between roughly 5mm and 12mm can trap a small finger, so keep moving parts either snug or generously open.
• For toys aimed at children under three, no component should fit entirely inside a small-parts cylinder (about 31.7mm across). If it does, it is a choking risk and belongs on a toy labelled for older children.

Run a cloth over the finished piece and then your bare thumb. If either snags, keep sanding.

Joinery and fixings that stay put

A toy that sheds a wheel is a toy that ends up in a hospital story. Use water-resistant PVA glue rated D3 or better and make sure it carries a toy-safety certification for heavy metals. Dowels, biscuits and glued mortises all work well. Where you need screws, countersink and plug them, or use solid brass or stainless steel so nothing corrodes.

Nails, panel pins and staples have no place in a child's toy. They work loose with vibration and offer no holding power once the wood dries.

Moving parts need mechanical locking, not friction. Thread axles through and secure them with a nyloc nut or a glued cap so a determined four-year-old cannot unscrew them. Drill pilot holes everywhere to prevent splitting, and leave a millimetre of clearance so seasonal movement does not split a wheel boss.

Pull cords deserve special care. Keep free cord length under 220mm on anything for under-threes, and never finish a cord with a loop or bead that could form a noose.

Choose finishes a child could safely chew

The finish is often the part makers rush, and it is the part a toddler meets first.

• Oils and waxes: raw linseed oil, pure tung oil, food-grade mineral oil and beeswax, either alone or blended into a soft paste. These soak in, leave no film to flake and can be topped up by the customer.
• Hardwax oils: durable, water-repellent and pleasant to touch, with a natural matte sheen.
• Water-based acrylic paints and lacquers: make sure they are certified to EN 71-3 for migration of heavy metals, and let them cure fully — days, not hours, in a warm ventilated space.
• Milk paint: charming and non-toxic, though it needs a safe topcoat to survive saliva and juice.

Avoid solvent-based varnishes, anything with a strong chemical smell, metallic pigments that may contain lead, and old tins of unknown paint. Spread oily rags flat to dry outside — bunched-up linseed rags can self-ignite.

Do your own abuse testing

Before anything leaves your bench, put it through a routine. Drop it from about a metre onto a hard floor, repeatedly, and check every joint. Try to pull off wheels, knobs and beads by hand and with a pair of pliers. Twist and tug cords, then measure them. Wipe the finish with a damp cloth and a little washing-up liquid to see whether colour transfers.

Keep a written record of each batch: timber species, glue, finish, and the date of testing. If a customer ever reports a problem, you can trace exactly what went into that toy.

Label honestly and hand over good care notes

Toys sold in the UK need to meet the Toy Safety Regulations, which means assessing against EN 71, keeping a technical file, and applying UKCA marking with your name and address, plus a clear age warning where relevant. Self-certification is entirely possible for a small maker, but the file must exist.

Alongside the label, tuck a small card into the box: wipe with a damp cloth rather than soaking, re-oil every few months, and inspect for loose parts. That note protects the child, protects your reputation, and quietly tells the buyer you know exactly what you are doing.