Flooring tools: names, pictures and what each one is used for

The base decides everything

Flooring problems are almost never the flooring. A floor that creaks, dips, peaks at the joints or cups across the boards is usually reporting on what is underneath it.

Two things matter: flat and dry. Flat means within a few millimetres over a couple of metres, because a click joint sitting over a hollow will flex until it fails, and a dip under vinyl telegraphs straight through as a visible line. Dry means the screed or slab has actually finished drying, which takes far longer than people expect and is the cause of most cupped wood floors.

Both are cheap to check and expensive to ignore, because the fix afterwards means lifting the entire floor.

Check flatness with a long straight edge

Lay it across the floor in several directions and look for light underneath. A three millimetre gap over two metres is the usual limit.

Test the moisture, do not guess

A new screed can take a month per 25 millimetres to dry. Wood laid on a damp base cups, and it cups permanently.

Fix squeaks before you cover them

Screw loose boards down to the joists. Once the new floor is on, that squeak is there for its whole life.

Punch nails below the surface

One proud nail head or screw tears underlay and shows through vinyl. Go over the whole floor before laying anything.

Let the flooring acclimatise

Wood and laminate need a few days in the room, flat and unopened, to reach its humidity. Skipping this causes gaps or buckling later.

Expansion gaps, and why floors buckle

Wood and laminate expand and contract with humidity, and they do it across the width of the boards. A floor with no room to move has nowhere to go but up, and that is what a buckled floor is.

So every edge needs a gap, usually around ten to twelve millimetres, hidden under the skirting or a bead. That means every wall, every doorway, and every pipe and upright the floor goes around. Get it right and the floor moves invisibly for decades. Fill one edge with adhesive or trap it under a heavy unit and the whole floor lifts in the middle.

A gap at every edge, without exception

Walls, thresholds, pipes, kitchen plinths and door frames. One trapped edge is enough to buckle the middle of the room.

Use spacers and leave them until the end

They hold the gap while you work. Taking them out early lets the floor creep tight against the wall.

Break the floor at doorways

Large areas and separate rooms need a threshold rather than a continuous run, since each room has its own humidity.

Undercut the door frame, do not cut the board round it

A saw run along the floor lets the board slide under the frame, which looks right and keeps the gap hidden.

Never glue a floating floor down at the edges

Floating means floating. Adhesive at the perimeter is the most common cause of a ridge across the middle.

Each covering has a few tools nothing replaces

Most of a flooring toolkit is shared: a saw, a knife, a tape, a straight edge. Then each covering adds a handful of specific tools, and those are the ones people try to improvise and regret.

Laminate and click wood

A tapping block, a pulling bar and spacers. Hitting a board directly ruins the click profile, so the block is not optional.

Solid and engineered wood, fixed down

A flooring nailer or cramps to close joints. Closing a long run by hand leaves gaps you cannot get back out.

Sheet vinyl and lino

A hook knife, a scriber and a seam roller. Vinyl is cut by scribing to the shape rather than measuring and hoping.

Luxury vinyl tile

A knife and a straight edge, plus a roller for glue down. Cut on the face with a fresh blade and snap it.

Carpet

A knee kicker, a stretcher, a bolster and gripper rods. Carpet is stretched into place, not laid, and this is the kit that does it.

What to buy first, in order

Stage one: lifting and preparing

A floor scraper, a wrecking bar, a nail punch, a claw hammer, a long straight edge, a moisture meter and a shop vacuum. Knee pads before anything else.

Stage two: laying a click floor

A tapping block, a pulling bar, spacers, a jigsaw or a hand saw, a mitre or pull saw for undercutting frames, a tape and a pencil.

Stage three: cutting properly

A laminate guillotine or a mitre saw, a profile gauge for awkward shapes, and a multi tool for undercutting door frames in place.

Stage four: the specific covering

A hook knife and seam roller for vinyl, a knee kicker and gripper for carpet, or a flooring nailer and cramps for fixed wood.

Mistakes that mean lifting it again

No expansion gap

The floor buckles into a ridge, usually in the middle of the room, and the only fix is lifting the edges.

Laying on a floor that is not flat

Click joints over a hollow flex until they break, and every dip shows through vinyl as a visible line.

Laying wood on a damp screed

It cups, and cupping does not reverse when the screed finally dries. Test rather than assume.

Not acclimatising the boards

A floor laid straight off the van gaps or buckles as it reaches room humidity. Days, not hours.

Hitting boards directly with a hammer

It crushes the tongue and groove profile, so the joint never closes properly again. Use the tapping block.

Cutting boards around a door frame

It looks obviously cut and leaves a gap that cannot be hidden. Undercut the frame and slide the board under.

A blunt knife on vinyl

It drags and tears instead of cutting, and the edge is then visible forever. Blades are consumables, and change them often.

Starting without planning the last row

You end with a two centimetre sliver along the far wall. Measure the room and split the difference across the first and last rows.

Looking after flooring tools

Change knife blades constantly

A knife blade cutting vinyl or underlay dulls within a few metres. Cheap, and a blunt blade ruins the cut edge.

Keep the tapping block undamaged

A split or dented block passes the damage on to the board profile. Replace it rather than persevering.

Clean adhesive off rollers before it sets

Set adhesive on a seam roller means it can never lie flat again, so the seam stays visible.

Sharpen scrapers

A floor scraper is a cutting tool. A file along the edge doubles its speed at removing old adhesive.

Store straight edges hanging or flat

A straight edge leaning in a corner bows, and a bowed one certifies a floor as flat when it is not.

Look after the knee pads

They are the tool that protects the part of you the job actually wears out. Replace them when the gel goes hard.

Frequently asked questions

What flooring tools do I need to start?

Knee pads, a tape measure, a pencil, a knife with plenty of blades, a long straight edge, a saw, a tapping block, a pulling bar and spacers. Add a floor scraper and a wrecking bar if you are lifting an old floor first.

How flat does a subfloor need to be?

Usually within about three millimetres over a two metre span, and check the manufacturer's figure. Click joints over a hollow flex until they fail, and any dip under sheet vinyl telegraphs through as a visible line.

Why do laminate floors buckle?

Almost always no expansion gap, or one edge trapped. Laminate expands with humidity, and if there is nowhere for it to move it lifts in the middle. Every wall, doorway, pipe and kitchen plinth needs a gap of around ten millimetres.

What is a tapping block for?

Transferring hammer blows to a board without touching the tongue and groove. Hitting the board directly crushes the click profile so the joint never closes properly again, and that damage is permanent.

What is a pulling bar used for?

Closing the last row and the last board in a run, where there is no room to swing a hammer against a block. It hooks over the board end and pulls the joint closed from the wall side.

Do I need to acclimatise laminate or wood flooring?

Yes, and it is one of the most skipped steps. Leave the packs flat and unopened in the room for the time the manufacturer states, usually around 48 hours, so they reach the room's humidity. Otherwise the floor gaps or buckles later.

How do I cut flooring around a door frame?

Undercut the frame rather than cutting the board around it. A pull saw or an oscillating multi tool run flat on the floor removes enough of the frame for the board to slide underneath, which hides the expansion gap and looks right.

Can I lay wood flooring on a new concrete screed?

Not until it has dried, which takes roughly a month for every 25 millimetres of thickness. Test it with a moisture meter rather than judging by appearance. Wood laid on a damp base cups, and it does not flatten out again afterwards.

What is a knee kicker for?

Stretching carpet onto gripper rods at the edges of a room. Carpet is stretched into place rather than simply laid, and without stretching it ripples and wears out early. For larger rooms a power stretcher does the same job better.

What is the difference between a hook knife and a straight blade?

A hook blade pulls itself into the material as you draw it, which suits cutting sheet vinyl and lino cleanly without it wandering. A straight blade suits scoring luxury vinyl tile and cutting underlay.

Do I need underlay?

For floating floors, yes, unless the boards have it attached. It absorbs small irregularities, reduces sound and, with a damp proof membrane, protects the floor from moisture below. It is not a substitute for a flat subfloor.

How do I stop a floor squeaking before I cover it?

Screw the loose boards down into the joists rather than nailing them, since nails work loose again. Do it before the new floor goes on, because once it is covered the squeak is there for the life of the floor.