Choosing and Salvaging the Right Piece

The best driftwood finds are rarely on the dry sand in the middle of a beach. Head for the strandline at the top of the tide, especially after a winter storm or a spell of strong onshore winds, and look for timber that has been tumbled rather than simply soaked. Oak, beech, elm and pine all turn up around the British coast, and each behaves differently: oak is heavy and dense but can split along old cracks, while pine is lighter, easier to work and often beautifully grooved by the sea.

Aim for a piece roughly 60–90 cm long, at least 12 cm wide and 3–4 cm thick. That gives you enough surface for a few small treasures without turning into a structural project. Tap it along its length and listen for a dull, hollow note, which usually means internal rot. Avoid anything riddled with tiny flight holes or showing fine powdery dust — that is woodworm, and it is not worth importing into your home. And do check local byelaws before you fill your boot; many councils and nature reserves discourage or prohibit removing timber and shingle from protected stretches of coast.

Cleaning, Drying and Checking for Pests

Salt is the enemy of a long-lasting shelf. Left in the grain, it holds moisture, blooms through finishes and corrodes metal fixings within a year or two. Soak your timber in a bath of fresh water for 48 hours, changing the water once or twice, then rinse it thoroughly. If the wood floats, weigh it down with a couple of bricks.

Dry it slowly. Stack it somewhere airy and out of direct sun — a garage or a shed with the door ajar is ideal — for six to twelve weeks, turning it every few days. Quick drying in a warm room will warp and split it. Before you go any further, check the moisture content with an inexpensive meter; you want it below 12 per cent. Run a magnet over the surface too, because old nails and fishing hooks have a habit of hiding in driftwood and will wreck a saw blade or a plane iron.

Sanding Without Losing the Sea-Worn Character

The temptation is to sand everything smooth and flat. Resist it. The soft, silvered edges and eroded ridges are exactly what makes driftwood worth having. Work with 80 grit to lift ingrained sand and grime, then move to 120 grit, finishing with 180 or 240 on the faces you will actually see. Keep the pressure light around the worn edges so they stay rounded.

One face does need attention: the back edge that sits against the wall. Plane or sand it flat and square so the shelf sits snugly rather than rocking on high spots. Sand the back face as well, since grit trapped behind a shelf will scuff the plaster and drop dust onto whatever sits below.

Sealing the Timber

Sealing is what turns a beach find into a piece of furniture. For a matt, understated finish that suits coastal interiors, thin matt polyurethane varnish is hard to beat. Apply three thin coats with a decent brush, sanding lightly with 320 grit between coats and wiping away the dust with a tack cloth. Thin coats dry faster and look less plastic than one heavy one. Leave 24 hours between coats and allow a week to cure fully before you load the shelf.

If you prefer an oiled, more natural look, a hardwax oil or Danish oil will give you a soft sheen and a lovely depth of colour, though it will need re-oiling once a year. Whichever you choose, brush the cut ends and any exposed knots generously. Leave the underside of a drilled fixing hole sealed too, otherwise damp air will find its way in.

Hanging It with Hidden Brackets

Two approaches work well. Keyhole plates are small metal plates screwed into shallow recesses routed into the back of the shelf; they hook over screws set into wall plugs for an almost invisible fix. They suit shelves up to about a metre long carrying light loads. A French cleat — two battens cut at 45 degrees, one fixed to the wall and one to the shelf — is stronger, spreads the load across the whole span and lets you slide the shelf sideways to fine-tune its position before it settles.

• Drill pilot holes about 1 mm narrower than your screw shanks, and countersink so the timber does not split.
• For plasterboard, use rated hollow-wall anchors of at least 15 kg capacity each.
• For masonry, brown plugs and 60 mm screws are reliable; drill a millimetre or two deeper than the plug.
• Level the wall batten with a spirit level before marking anything. For a cleat, the level matters far more than the measurements.

Keep the total load sensible — around 10 kg spread across an 80 cm shelf is plenty — and always drill into at least two studs or three well-spaced plugs.

Styling Small Coastal Treasures

Now the enjoyable part. Group objects in odd numbers, vary the heights and leave gaps so each piece breathes. A shallow dish of sea glass, a jam jar of shells, a coil of tarred rope, a dried sea urchin test, a small framed photograph of the beach where you found the wood. Something living — a trailing string of pearls in a small pot — softens the composition beautifully.

Dust with a dry microfibre cloth rather than a damp one, and keep anything salty or damp well away from the timber. Rotate the display with the seasons and it will never feel stale.