Small Rooms Deserve the Same Care as Large Ones

It is tempting to treat a box room, a downstairs cloakroom or a narrow hallway as a quick job — a few packs of laminate, an afternoon, done. In practice, small rooms are where floating floors go wrong most often. There is less room for the boards to move, more awkward cuts per square metre, and every mistake is closer to the eye. Get the basics right and a small floor will look and feel every bit as good as one laid in a big open living room.

Let the Boards Acclimatise Before Anything Else

Laminate is a wood-based product and it moves with the moisture and temperature around it. Bring the packs into the room where they will be laid and leave them flat, not stacked on their edges, for at least 48 hours — 72 is better in winter. Keep the room at normal living conditions, roughly 18–21°C, with the heating on as usual.

• Never lean packs against a radiator or leave them in a cold garage until the morning of the job.
• Open the packs only when you are ready to lay; sealed packs acclimatise more evenly.
• If the room has been newly plastered, allow the plaster to dry fully first — a week or more.

If you skip this step, boards that were cut and clicked together in a cold room will gap and peak as soon as the heating comes on.

Prepare a Flat, Dry Subfloor

Laminate needs a subfloor that is flat to within about 3mm over a 2m straightedge. Any more than that and the click joints will work loose, squeak or break. Sweep or vacuum thoroughly, then check for hollows and high spots with a long spirit level.

On timber floors, screw down any loose boards and replace damaged ones. Plywood or hardboard over the top at 6mm thickness will smooth out minor undulations. On concrete or screed, fill dips with a self-levelling compound and let it cure fully.

Damp is the silent killer of laminate. If you are laying over a concrete slab at ground level, test for moisture before you commit. A simple hygrometer reading of under 75% relative humidity is a reasonable guide, and a plastic sheet taped down for 24 hours will show condensation if there is a problem. When in doubt, use a combined underlay with a built-in damp-proof membrane.

Leave the subfloor to reach room temperature too — cold slabs in spring can hold condensation for days.

Underlay Choice and the Expansion Gap

For a click-together laminate, keep underlay thin. Foam or combination underlay of 2–3mm is ideal. Thick fibre underlay feels lovely underfoot but allows the joints to flex, and the locking system will eventually fail along the busiest walking line.

Now the detail most DIY jobs get wrong: the expansion gap. Laminate is a floating floor and it will expand and contract as a single sheet. Leave a gap of 10mm all the way around the perimeter, at doorways, around pipes and against any fixed object.

• Push plastic spacers against the wall every 300–400mm along each row.
• Use two spacers doubled up at the ends of a run if the wall is uneven.
• Never let a board butt tight against a door frame, a radiator pipe or a chimney breast.

In a small room, 10mm is generous enough. If the room is more than about 10m in any direction you would need to increase it, but a box room will not push that limit.

Setting Out and Cutting In

Start along the longest wall, with the groove facing into the room and the tongue towards the wall. Run the boards parallel to the main window so the light falls along the length of the planks — it makes a small room feel longer rather than chopped up.

Stagger the end joints by at least 300mm from row to row, and avoid a tiny sliver of board at the wall. Cut the first board of a row short if it leaves you with less than 50mm at the far edge.

For cutting, a fine-tooth hand saw with the decorative face up works well; a laminate blade in a jigsaw or a small mitre saw is quicker. Undercut door frames and architraves with a multi-tool so the board slides underneath — it looks far neater than beading around them. Around radiator pipes, drill a hole 20mm wider than the pipe, cut a wedge out of the board, slot it in and glue the wedge back behind the pipe with a pipe collar over the top.

Finishing the Edges and Living With It

Once the last row is in, pull out the spacers. Cover the gap with skirting boards fixed to the wall — never nailed through the floor — or with scotia beading if you are keeping the existing skirting. Fix beading to the wall, not the floor, so the boards can still move underneath.

Leave the floor for 24 hours before walking on it heavily or sliding furniture back. For day-to-day care, a dry mop or a well-wrung damp cloth is plenty; standing water is what ruins laminate, especially at the joints. Add felt pads under chair legs and a mat at the doorway, and your small room floor will stay tight and flat for years.