There are three types of sanding action — and only one of them actually works across multi‑directional grain.

Most timber floors are sanded in a single direction, following the grain of the boards. That approach works well on standard flooring where every plank runs the same way.

But parquetry floors change the rules completely.

With patterns such as herringbone, basket weave, and mosaic, the grain runs in multiple directions across the same surface. Each block sits against another at a different angle, which means there is no single direction that can be followed across the entire floor.

Why Parquetry Floors Require a Different Approach

Parquetry is made up of small individual timber blocks arranged in a pattern. Unlike straight board flooring, where sanding direction is predictable, parquetry constantly changes orientation every few inches.

This creates a challenge.

Sand in one direction, and you are automatically sanding across the grain of the next block.

That’s why standard sanding advice doesn’t apply.

Instead of following the grain, the sanding process must be controlled in a way that produces a flat, consistent surface without introducing visible scratch patterns.

The Three Types of Sanding Action

In timber floor sanding, there are three distinct sanding actions:

• Linear sanding — used by drum and belt machines, cutting in a single direction
• Orbital sanding — circular or random motion, typically used for light refinement
• Planetary sanding — multi‑disc, counter‑rotating action that produces a controlled, consistent scratch pattern

Each of these has a role in the sanding process.

However, on parquetry floors, the difference between them becomes critical.

What Actually Works on Parquetry

Parquetry floors cannot be sanded by simply following the grain — because there isn’t one.

This is why professional parquetry floor sanding requires a more controlled approach to avoid visible scratch patterns across the surface.

They also cannot rely on random sanding alone — because that doesn’t control the surface.

Instead, the process is about controlling how the floor is cut and refined at each stage.

Early passes are used to level and correct the surface, working at controlled angles across the pattern. Each stage then progressively refines the previous scratch pattern, tightening and blending it until the floor reads as uniform.

This is where planetary sanding plays a key role.

Unlike single-direction or purely random sanding, planetary sanding creates a consistent cut across multiple grain directions at the same time. This allows the surface to be refined without leaving visible cross-grain marks or softening the pattern.

Flatness Comes First — Not Direction

With parquetry, the priority is not sanding direction.

It is surface control and flatness.

Each stage of sanding is designed to:

• level the floor
• correct minor variations between blocks
• refine the scratch pattern
• prepare the surface evenly for coating

The result should be a floor that appears smooth and consistent from every angle, while maintaining the sharp definition of the parquetry pattern.

Why Parquetry Sanding Is Often Done Incorrectly

Parquetry requires a different approach, but many floors are still sanded using standard methods.

When the wrong sanding action is used, problems often don’t show immediately. The floor may look acceptable before coating, but once the finish goes down, scratch patterns and inconsistencies become visible under light.

This is why parquetry sanding is considered more technical.

It’s not just about removing the old surface — it’s about controlling how the new one is created.

A Controlled Process from Start to Finish

Every parquetry floor is slightly different depending on:

• timber species
• pattern layout
• age and condition
• previous coatings or repairs

For this reason, the sanding process is always adjusted to suit the floor itself.

The goal is consistent:

a flat, refined surface that holds its pattern and performs properly under a coating system.

Finishing Parquetry Floors

Once sanding is complete, the coating system plays an important role in how the floor performs long term.

Different coating systems cure in different ways. Some continue to harden over time after application, while others complete their curing process as part of the finishing stage.

What matters is that the surface has been properly prepared so the coating can bond evenly and perform as intended.

Parquetry Done Properly

Parquetry floors are one of the most detailed and visually striking timber floors, but they require a more controlled sanding process to get them right.

When handled correctly, the result is:

• a flat, uniform surface
• crisp, well-defined pattern lines
• a finish that performs consistently across the entire floor