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Wood Veneer Grades and Matching: Book Match, Slip Match and Face Grades Explained

September 24, 2026

A quote can say “A grade, book matched” and still leave two separate questions unanswered until you check both halves of that phrase. Grade tells the supplier what a single leaf is allowed to show. Match tells the supplier how leaves are arranged next to each other once you have several. Buyers who specify only one of the two often get veneer that is technically correct and still not what they pictured.

This guide covers the face grades in common use, the four ways leaves are matched within a face, the three ways leaves are arranged across a panel, how matching extends across panels and rooms, and how to put all of it on one RFQ line.

Why grade and match are two different things

Grade is about a single leaf. It sets the allowance for color variation, small knots, mineral streak, pin knots and similar natural character, and it is defined by a written standard so a buyer and a supplier are working from the same rule. Match is about the relationship between leaves once more than one is placed on a face or a panel. It has nothing to do with defects. A face can be top grade and still look wrong if the leaves are matched randomly when the design called for a mirrored book match, and a mid grade face can look calm and intentional if the leaves are matched and arranged with care.

Treating the two as one setting is the most common cause of a delivered order that meets the letter of the quote and still misses the job. Specify grade for what the wood is allowed to show. Specify match for how the leaves are arranged. Both belong on the same RFQ line, but they are answering different questions.

Face grades

In North America, hardwood plywood and veneer faces are commonly graded to ANSI/HPVA HP-1, the national standard for hardwood and decorative plywood published by the Decorative Hardwoods Association. The standard runs from a tight, uniform top grade down to grades meant for backs or surfaces that will not be seen.

Grade	Typical allowance
AA	Closest to a uniform color and grain, the tightest control on natural character, used where the face has to read as one continuous piece
A	Very consistent color and grain, small allowance for pin knots or slight color shift, no open defects
B	A visible amount of color variation and small sound knots, some mineral streak allowed
C	More open character: streaks, small knots and color variation that reads clearly at normal viewing distance
D	Wider allowance for knots, streaks and color variation, common on leaves further down the flitch
E	The most open of the usable face grades, generally specified for backs or surfaces that will not be seen

Treat this table as typical, not a substitute for the standard itself. The current edition of ANSI/HPVA HP-1 is the reference to put on a specification, not a letter grade on its own, because the exact allowances have been revised over past editions and a supplier working from an old copy can read a grade differently than you do.

Architectural millwork is often specified against the Architectural Woodwork Standards instead, which defines its own AA, A and B grades for custom casework and paneling. If a project is being built to an AWS specification, ask which of its two documents the quote should follow and put the grade letter and the standard on the same line, for example “A grade per AWS.”

Suppliers based outside North America frequently grade to their own house system rather than HP-1 or AWS. A house grade of “A” from one supplier and “A” from another are not the same allowance. Ask for the written definition of what a house grade permits, ideally with reference photos, before you place an order against it, and treat a supplier who cannot produce that definition as one you should confirm carefully before committing to a large run.

How leaves are matched within a face

Once individual leaves are ready to be joined into a face, they can be matched four common ways. Each produces a different visual effect from the same flitch.

Book match. Leaves are opened like the pages of a book, so every other leaf is flipped over before it is joined to the next. The grain mirrors itself at every seam, and the figure on one leaf is a reflection of the figure on its neighbor. This is the most common match for cathedral figured species and gives the symmetrical look most buyers picture when they think of veneer paneling. On some species and cuts it also produces a barber pole effect, where alternating leaves catch light differently because the wood fibers run in opposite directions, showing as faint light and dark stripes down the face depending on viewing angle.

Slip match. Leaves are placed side by side in the order they came off the flitch, without flipping any of them. The figure repeats across the face instead of mirroring at each joint, so there is no barber pole effect and the grain at each seam does not meet in a mirrored pattern. Slip match is the usual choice for rift and quarter sliced veneer, where the straight grain does not need a mirror to look intentional and a repeating pattern reads as calmer than a mirrored one.

Random match. Leaves are deliberately mixed for width, color or figure rather than matched at the seams. The result is a casual, varied face that does not try to read as one continuous piece. Random match is chosen on purpose for a less formal look, or on jobs mixing more than one flitch where a strict match is not practical.

Plank match. Leaves are joined to resemble individual boards of solid lumber rather than one continuous veneer face. Some variation in color and figure is expected and even wanted between leaves, and seams are not hidden so much as treated like the joints between real boards. It is a way to get the look of a solid plank wall or floor at veneer economy.

How leaves are arranged across a panel

Beyond how individual leaves are joined, there is a separate decision about how the joined leaves fill the width of a panel.

Running match. Leaves of whatever width the flitch provides are used to fill the panel, with a leaf cut down at the edge if needed. This uses the flitch efficiently and produces the least waste, but the leaf widths across the panel are not even, so the rhythm of the seams varies from panel to panel.

Balance match. Leaves are selected to be roughly equal width before they are joined, so the seams fall at a more even spacing across the panel. This costs a little more in waste than a running match, because leaves have to be chosen or trimmed for consistent width rather than simply used as they come.

Center balance match. An even number of equal width leaves is arranged so a seam falls exactly on the panel’s centerline, or two matched leaves flank the center point precisely. This gives the most symmetrical, deliberate look of the three and is the usual choice for paneled walls and doors where the centerline matters visually, at the highest waste of the three because leaf widths are constrained to land exactly on center.

Matching across panels and rooms

The same logic that governs leaves within one panel can be extended to how separate panels relate to each other.

Pleasing match. Panels are selected to be reasonably close in color and figure without requiring the leaves to come from a tracked sequence. It is the most economical way to keep a room from looking mismatched and is adequate for most general cabinetry and casework.

Sequence matched panels. Panels are built using leaves in the exact order they were sliced from the flitch, so the grain appears to flow continuously from one panel to the next, as if the flitch had been reassembled across the wall. This requires buying most or all of one flitch and requires the supplier to track leaf order through production, which is reflected in the price.

Blueprint matched panels and doors. The exact leaf for each panel or door, and its position within that panel, is set on a drawing before production, sometimes down to which leaf goes on a door versus its adjoining sidelight or transom. This is used for runs where the grain has to line up precisely across several elements, such as a set of matched doors or a lobby wall, and it is the highest cost and highest waste of the matching options because the supplier is working to your layout rather than their own production order.

How to write grade and match on an RFQ

Grade and match belong on the same line as species and cut, not as separate notes the supplier has to reconcile. A few examples:

1. White oak, quarter sliced, A grade per ANSI/HPVA HP-1, book matched, balance matched across a panel width of about 48 in.
2. Walnut, plain sliced, B grade per ANSI/HPVA HP-1, book matched, sequence matched panels for a 20 ft wall run.
3. Rift white oak, A grade, slip matched, blueprint matched across a set of 6 doors, per attached elevation drawing.

Each line answers three separate questions in order: what the wood is allowed to show, how the leaves within a face are joined, and how that arrangement carries across the job. If a layout drawing exists, attach it. If you are not sure which match term describes what you want, describe the look in plain language and ask the supplier to confirm the match name, since a short conversation before the order is cheaper than a re-cut face after delivery.

For the words you will meet on a quote, see veneer terms on a quote. The full line of seven fields is in our guide to veneer specification; for where the AA and A letters come from, see AWI Architectural Woodwork Standards: veneer grades.

See also: HPVA veneer face grades for what AA to E allow on a veneer face.

See also: veneer matching for end matches, specialty matches and the extra veneer each match takes.

Frequently asked questions

Keep reading

• Veneer for Cabinet Doors, Wall Panels and Furniture: Matching Grade, Backing and Match to the Application
• Bending Veneer for Curved Parts: Backers, Grain Direction and Bent Lamination