How We Sand Wood Floors: Choosing the Right Method

There is no single sanding setup that suits every wood floor. Solid boards, parquet blocks and engineered planks each have different construction, grain direction and limits. We assess the floor first, then choose the machines and abrasives that can remove the old coating and scratches while preserving as much sound timber as possible.

Here is how our sanding process works, why we use different machines at different stages, and what affects the final result.

Start with the floor, not the machine

Before sanding, we identify the floor type and timber, check the condition and thickness of the surface layer, and look for movement, uneven areas, repairs and previous coatings. We also consider the floor's texture and the finish the customer wants. A hard factory coating, a thin engineered wear layer or a brushed surface can all change how much sanding is suitable.

For more detail on the checks we make before sanding engineered boards, see our engineered floor sanding guide.

How a belt sander works and when we use it

A professional floor belt sander carries a continuous loop of abrasive around driven rollers beneath the machine. As the belt moves over the floor, it cuts a controlled path through the coating and, where needed, the timber beneath it. On suitable, relatively even plank floors, it is an efficient way to make the main sanding passes, usually following the length of the boards.

The machine is powerful, so pace and control matter. We keep it moving, overlap passes and manage the start and finish of each cut to avoid ridges, dips or stop marks. A belt sander can be useful for removing a worn finish or making a stronger first cut, but it is not automatically right for every floor. On engineered boards we first consider the remaining wear layer; on parquet we plan around the different grain directions in the blocks.

How a planetary sander works and when we use it

A planetary multi-disc sander has several smaller abrasive discs beneath a larger head. The individual discs rotate while the head also turns and travels across the floor, creating a multi-directional sanding pattern. This differs from a belt sander's more linear cut.

We use the planetary machine when the floor and stage of work call for a controlled, even refinement. It can help blend scratches left by the main sander and edge work, and is especially useful on floors where grain direction changes, such as parquet. It can also be part of a careful approach to engineered or textured flooring. It is not a magic shortcut or a replacement for every heavier removal cut; the right sequence depends on the floor's construction and condition.

Edges, corners and the transitions between machines

The main sander cannot reach right up to every wall, radiator or doorway, so we use an edging machine for the perimeter and hand-sand corners and awkward details. Edge sanding can leave a different scratch pattern from the machine used in the centre of the room. We work through compatible abrasive stages and blend the transition so the difference is less likely to show when oil or lacquer is applied.

Abrasives and grit progression

Abrasives do the cutting, and the right choice depends on the machine, coating, timber and stage of the job. Aluminium-oxide abrasives are widely used for general sanding. Some ceramic or zirconia abrasives are suited to more demanding removal work, while mesh and multi-disc abrasives can be useful for refinement and dust extraction on compatible machines. No one abrasive is best for every floor.

We normally move through a planned sequence from a coarser cut to finer abrasives. Each stage should remove the scratches left by the previous one. Skipping too far ahead can leave marks that become obvious under a clear finish; finishing too coarsely can also affect the look and feel. The final grit is chosen for the timber and the product being applied, because an oil and a lacquer do not always call for identical preparation.

Factory coatings affect abrasive choice too. Some durable finishes contain aluminium-oxide particles, which can take more careful work than an ordinary worn coating. We check how the abrasive is cutting and change it when it is worn or loaded, rather than pressing harder and risking an uneven surface.

How the method changes with the floor

Solid wood boards

On a sound plank floor, a belt sander may make an efficient main cut along the boards. We then work the edges, progress through finer abrasives and use the planetary machine where it will improve the surface.

Engineered wood

Engineered flooring has a real-wood top layer over a supporting core. Its remaining wear layer and the floor's overall condition set the limit on how much material can safely be removed. We aim for controlled sanding and do not assume a full, aggressive cut is suitable.

Parquet

Parquet blocks run in different directions, so the sanding plan needs to account for changing grain and pattern. A planetary machine can help refine across those directions, while the first-cut method is chosen for the particular floor. Our parquet sanding guide explains more about parquet condition, repairs and sanding limits.

Brushed or sculptured boards

Brushed and sculptured boards have a deliberately textured surface. Heavy sanding can flatten the raised grain or remove the character that gives the floor its appearance. Depending on the coating and wear, a careful abrasion and recoat may be more appropriate than sanding back to bare wood.

Why we use more than one sanding machine

We own our professional sanding equipment, including belt, edging and planetary machines. Having the right tools available gives us the flexibility to choose the method each floor needs and to carry out the full sanding sequence ourselves. After the main cut, we use planetary sanding where it will benefit the floor, refining the scratch pattern and preparing the surface for its finish. It is an extra stage that helps us work towards a consistent, carefully prepared result.

You can also read our guide to the sanding equipment we use for more about the machines involved.

Preparing for oil or lacquer

The final sanding stage is part of the finish, not a separate afterthought. Hardwax oil needs a clean, evenly prepared surface so it can be applied consistently; lacquer can make scratches and uneven sanding easier to see in reflected light. We vacuum carefully, inspect the floor and follow the preparation requirements for the chosen finish. The best finish is the one that suits the room, expected use and appearance the customer wants.

A maintenance recoat may suit a floor whose existing finish is still sound. Our guide to when a wood floor needs resealing explains the signs that help distinguish a maintenance coat from a full sand and refinish.

Need advice about sanding your floor?

If you are unsure whether your floor can be sanded, or which method and finish would suit it, Axholme Floor Care can assess it and explain the options. We restore solid, engineered and parquet floors across Scunthorpe, North Lincolnshire and nearby areas including Lincoln, Doncaster, Hull and Grimsby. Get in touch for advice and a no-obligation quotation.

Areas we cover: We provide wood floor sanding and restoration in Scunthorpe, Hull, Doncaster and Grimsby, as well as Lincoln, Gainsborough, Goole, Pontefract and surrounding towns and villages.