Two quotes for “white oak flooring” can differ in price for one quiet reason: they describe different grades. Grade decides how many knots, how much color movement and how many natural features show on the face, and it has a direct effect on how much usable material comes out of each log. If the grade is not written down clearly, the buyer and the factory are pricing, and later inspecting, two different floors.
This article explains the four grades we use at Vu Uy Wood, what each one looks like, how grade relates to cost, and how to lock it down on a physical sample before production.
What grade actually controls
Grade is a sorting decision about the face of the board. It describes the visible character of the wood: the size and number of knots, the amount of color variation between and within boards, and whether natural features such as splits or voids are present and filled.
Grade does not describe:
- Construction. Solid, 2-layer and 3-layer boards can each be made in any of the grades.
- Grain pattern. How the log is sawn (rift and quarter, plain sawn or mixed) is a separate choice. More on this below.
- Color or texture. Stain, sheen and brushing are applied after grading and are specified on their own.
Keeping these apart in an RFQ avoids a common problem: a buyer asks for a “clean” floor and receives a Premium face, when what they actually wanted was straight grain in a Natural grade.
The four grades
These are the definitions we work to, as listed on our Specify page.
Premium
A clean, quiet appearance with very few knots and limited color variation. Premium is chosen when the floor should read as a calm, uniform surface, for example in minimal interiors or under a light, clear finish where every mark would show. It has the lowest yield from the timber, so it carries the highest material cost.
Select
Small sound knots with gentle color variation. Select keeps a refined look while allowing some of the character that makes oak recognizable. Its yield is lower and its cost higher than the standard grades.
Natural
Visible knots and natural color movement for a more expressive oak floor. Natural is the standard grade: standard yield, standard cost. For many residential projects it is the reference point that other grades are compared against.
Rustic
Larger sound knots, stronger color variation and filled natural features. Rustic has the highest yield from the timber and the lowest cost. It suits interiors where the floor is meant to look lived-in and textured, and it pairs naturally with deeper brushing and darker or effect finishes.
Grade comparison at a glance
| Grade | Knots | Color variation | Natural features | Relative yield | Relative material cost |
|---|---|---|---|---|---|
| Premium | Very few | Limited | Minimal | Lowest | Highest |
| Select | Small, sound | Gentle | Few | Lower than standard | Higher than standard |
| Natural | Visible | Natural movement | Some | Standard | Standard |
| Rustic | Larger, sound | Stronger | Filled | Highest | Lowest |
The logic behind the cost column is simple. A log produces a limited amount of clean face material. The stricter the grade, the more material has to be set aside, so each square foot of Premium face uses more timber than a square foot of Rustic. Yield differences are expressed here as a comparison only; the actual figure depends on the timber lot and the specification.
Grain selection is a separate decision
Grade and grain are often confused. Grain describes how the board was cut from the log:
- Rift and quarter gives straighter, tighter lines along the board. Quarter sawn oak can also show the ray fleck that white oak is known for.
- Plain sawn shows the familiar cathedral arches and wider grain figure.
- Mixed combines both in the same floor.
A Premium board can be plain sawn, and a Rustic board can be rift and quarter. When writing a specification, state both: for example, “Natural grade, rift and quarter” or “Select grade, mixed grain”. Grain selection is listed as its own option in our custom flooring specification for exactly this reason.
How grade interacts with color and texture
Grade is judged on raw wood, but the buyer’s customer sees the finished floor. The finish changes how strongly character reads.
Color. Light and clear finishes leave knots and color variation fully visible, so a Natural grade under a clear UV topcoat will look livelier than the same boards under a mid-tone stain. Darker stains and effect finishes (smoke, wash or two-tone reactions) tend to reduce the contrast between boards, which is one reason Rustic and Natural grades are often paired with them. Filled features can take stain differently from the surrounding wood, which is worth checking on the sample.
Texture. Our surfaces run from smooth-sanded to progressively deeper wire brushing. Brushing removes softer wood and opens the grain, which adds shadow and relief across the face. On a Premium board, a light brushing adds touch without adding visual noise. On a Rustic board, deeper brushing reinforces the character that is already there. The same approved color can be applied across different textures, but the combined result has to be seen together. Our article on smooth vs wire-brushed oak covers the texture options in more detail.
Sheen. Matte, Extra Matte and Ultra Matte sheens all soften reflections. Lower sheen generally makes variation in the face less obvious under raking light.
The practical conclusion: never approve grade on raw boards and color on a separate chip. Approve them together, on one finished sample.
Approving grade with a sample
Grade descriptions are written in words, and words leave room for interpretation. The approved physical sample is what removes that room.
A few points make a grade sample useful:
- Ask for more than one board. A single board shows one example. Grade is about the range, so the sample should show the lightest and heaviest character you will accept.
- Finish it as ordered. The sample should carry the intended color, sheen and texture, made with the intended production finish.
- Look at it in the destination light. Review the sample in daylight and under the kind of lighting the project will have.
- Keep a matching reference on both sides. At Vu Uy, the approved sample becomes the master reference for production, and we retain the approved panel for repeat orders. The buyer should keep their own counterpart.
- Write the grade name and grain choice on the approval. “Natural, rift and quarter, Color UV, Matte, Light Wire Brushed” is a specification. “Nice oak” is not.
Color and grade approval follow the same principle, which is covered in why color is approved on a physical sample.
Checklist: what to ask your supplier about grade
Grade is one line of an engineered oak flooring specification.
- Which grades do you run, and how is each one defined in writing?
- Is grain (rift and quarter, plain sawn, mixed) specified separately from grade?
- Where in the process is grade checked? At Vu Uy, species, grade and origin are checked at intake, before material enters production.
- Will the sample show the acceptable range, or a single selected board?
- Is the approved sample kept as the production reference for repeat orders?
- Are filled features acceptable in the grade you are ordering, and how do they look under your chosen stain?
Working with Vu Uy Wood
We manufacture solid and engineered French White Oak flooring to specification in Premium, Select, Natural and Rustic grades, with grain selection specified separately. Grade is checked at intake, and the finished approved sample becomes the master reference for the production run. The fastest way to set grade, grain, color and texture together is to work through the Specify page, which turns your choices into a written brief we can quote. We normally reply within one working day.