{"id":14928,"date":"2026-01-23T09:44:30","date_gmt":"2026-01-23T15:44:30","guid":{"rendered":"https:\/\/wurthbaersupply.com\/blog\/?p=14928"},"modified":"2026-01-23T15:08:04","modified_gmt":"2026-01-23T21:08:04","slug":"hardwood-plywood-glossary","status":"publish","type":"post","link":"https:\/\/wurthbaersupply.com\/blog\/2026\/01\/hardwood-plywood-glossary\/","title":{"rendered":"Hardwood Plywood Glossary: 25 Terms Cabinet Shops Should Know"},"content":{"rendered":"\n

If you buy hardwood plywood<\/a> for cabinets, casework, or furniture, you\u2019ve probably heard terms like veneer core<\/em>, crossbanding<\/em>, rift cut<\/em>, or B\/BB<\/em> and had to stop and double-check what they mean.<\/p>\n\n\n\n

This glossary breaks down the most important hardwood plywood terms in plain language so you can spec panels faster, avoid ordering mistakes, and get the results you expect in the shop (and what your clients expect<\/strong> on their project).<\/p>\n\n\n\n

If you\u2019re ready to shop now, W\u00fcrth Baer Supply<\/a> has everything you need!<\/p>\n\n\n\n

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Quick Skim: Hardwood Plywood Glossary<\/h2>\n\n\n\n
Term<\/th>What It Means (Short Version)<\/th><\/tr><\/thead>
Back<\/td>The reverse side of the face veneer<\/td><\/tr>
Bark Pocket<\/td>Bark trapped inside the wood<\/td><\/tr>
Core<\/td>The center layer(s) of a plywood panel<\/td><\/tr>
Crossbar<\/td>Grain irregularity running across the board<\/td><\/tr>
Crossbanding<\/td>Inner plies placed at 90\u00b0 to the adjacent plies (cross banding is done on a ply-by-ply basis)<\/td><\/tr>
Defects<\/td>Anything that breaks a smooth surface<\/td><\/tr>
Delamination<\/td>Layers separating due to adhesive failure<\/td><\/tr>
Face<\/td>The best-looking side of the panel<\/td><\/tr>
Grain<\/td>Fiber pattern and direction in wood<\/td><\/tr>
Gum Spots<\/td>Resin pockets that can show through veneer<\/td><\/tr>
Half-Round Slicing<\/td>Off-center slicing that blends cut styles<\/td><\/tr>
Hardwood<\/td>Deciduous wood (not \u201chardness\u201d)<\/td><\/tr>
Heartwood<\/td>Mature, darker center of the tree<\/td><\/tr>
Knot<\/td>Branch base embedded in wood<\/td><\/tr>
Open Knot<\/td>Knot that drops out and leaves a hole<\/td><\/tr>
Pin Knot<\/td>Small sound knot under 1\/4\u201d<\/td><\/tr>
Sound Knot<\/td>Solid knot that stays in place<\/td><\/tr>
Knothole<\/td>Hole left behind by a missing knot<\/td><\/tr>
Lap<\/td>Veneer overlap in a ply layer<\/td><\/tr>
MDF<\/td>Smooth engineered fiber core material<\/td><\/tr>
Mineral Streak<\/td>Natural discoloration in wood\/veneer<\/td><\/tr>
Particleboard<\/td>Pressed wood chips used as a core<\/td><\/tr>
Patches<\/td>Inserts used to repair veneer defects<\/td><\/tr>
Plain Sliced<\/td>Veneer cut tangent to growth rings<\/td><\/tr>
Ply<\/td>A single veneer layer in plywood<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Shop Hardwood Plywood<\/a><\/div>\n<\/div>\n\n\n\n
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25 Hardwood Plywood Terms Cabinet Shops Should Know<\/h1>\n\n\n\n

1) Back<\/h3>\n\n\n\n

The back<\/strong> is the reverse side of a hardwood plywood panel. It\u2019s usually the lower-grade side when a panel has a \u201cgood face\u201d and a \u201cutility back.\u201d
Why it matters:<\/strong> Saves money when the back won\u2019t be visible inside cabinets or wall paneling.<\/p>\n\n\n\n

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2) Face<\/h3>\n\n\n\n

The face<\/strong> is the best-looking side of the plywood panel. It\u2019s the side you design around and show on finished cabinetry.
Why it matters:<\/strong> This is where grade, veneer cut, and matching style matter most.<\/p>\n\n\n\n

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3) Core<\/h3>\n\n\n\n

The core<\/strong> is the center of the panel. It can be veneer, MDF, particleboard, or other engineered materials.
Why it matters:<\/strong> Core choice affects weight, screw holding, machining, and stability.<\/p>\n\n\n\n

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4) Ply<\/h3>\n\n\n\n

A ply<\/strong> is one single layer of veneer inside plywood. Multiple plies are stacked and bonded to build thickness.
Why it matters:<\/strong> More plies often means better stability and cleaner machining.<\/p>\n\n\n\n

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5) Hardwood Plywood<\/h3>\n\n\n\n

Hardwood plywood<\/strong> is a panel made from inner layers (plies) bonded together with adhesive, with a hardwood veneer face and back.
Why it matters:<\/strong> It\u2019s the standard panel product for cabinetry, furniture, and architectural millwork.<\/p>\n\n\n\n

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6) Veneer<\/h3>\n\n\n\n

Veneer<\/strong> is a thin sheet of wood that\u2019s peeled or sliced. It is typically used as the decorative face.
Why it matters:<\/strong> Veneer species and cut determine the final look of the panel.<\/p>\n\n\n\n

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7) Grain<\/h3>\n\n\n\n

Grain<\/strong> is the pattern, direction, and size of wood fibers.
Why it matters:<\/strong> Grain affects appearance, finishing, and how panels look across cabinet runs.<\/p>\n\n\n\n

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8) Crossbanding<\/h3>\n\n\n\n

Crossbanding<\/strong> is an inner ply veneer placed at a right angle (90\u00b0) to the core, face, and back.
Why it matters:<\/strong> Improves stability and reduces warping.<\/p>\n\n\n\n

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9) Crossbar<\/h3>\n\n\n\n

A crossbar<\/strong> is an irregularity in the wood grain running across the length of the board.
Why it matters:<\/strong> It can change appearance and affect finishing consistency.<\/p>\n\n\n\n

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10) Defects<\/h3>\n\n\n\n

Defects<\/strong> are anything that interrupts the smooth surface of the wood. Examples include knots, splits, voids, and wormholes.
Why it matters:<\/strong> Grade is basically a controlled list of allowable defects.<\/p>\n\n\n\n

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11) Delamination<\/h3>\n\n\n\n

Delamination<\/strong> is when inner plies separate, usually because the adhesive bond fails.
Why it matters:<\/strong> Delamination can ruin a panel during machining, assembly, or after installation.<\/p>\n\n\n\n

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12) Knot<\/h3>\n\n\n\n

A knot<\/strong> is the circular portion of wood that formed where a branch grew from the tree trunk.
Why it matters:<\/strong> Knots affect strength and appearance.<\/p>\n\n\n\n

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13) Sound Knot<\/h3>\n\n\n\n

A sound knot<\/strong> is solid and stays in place.
Why it matters:<\/strong> Sound knots may be acceptable in certain grades and applications.<\/p>\n\n\n\n

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14) Pin Knot<\/h3>\n\n\n\n

A pin knot<\/strong> is a small sound knot less than 1\/4\u201d in diameter.
Why it matters:<\/strong> Often allowed in higher grades because they\u2019re less noticeable.<\/p>\n\n\n\n

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15) Open Knot<\/h3>\n\n\n\n

An open knot<\/strong> is a knot that has loosened or dropped out, leaving an opening.
Why it matters:<\/strong> Open knots usually require patching or are only acceptable in low-grade panels.<\/p>\n\n\n\n

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16) Knothole<\/h3>\n\n\n\n

A knothole<\/strong> is the hole left when a knot drops out of the wood.
Why it matters:<\/strong> Not ideal for finished cabinetry unless the look is intentional.<\/p>\n\n\n\n

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17) Bark Pocket<\/h3>\n\n\n\n

A bark pocket<\/strong> is a small area of bark trapped in the wood as the tree grew.
Why it matters:<\/strong> It\u2019s a natural flaw that can weaken or visually disrupt the face veneer.<\/p>\n\n\n\n

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18) Splits<\/h3>\n\n\n\n

Splits<\/strong> are separations in the wood fiber running parallel to the grain.
Why it matters:<\/strong> Splits can telegraph through finishes and weaken edges.<\/p>\n\n\n\n

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19) Lap<\/h3>\n\n\n\n

A lap<\/strong> is when one piece of veneer overlaps another in the same ply layer.
Why it matters:<\/strong> Can show through thin veneers or create inconsistent sanding results.<\/p>\n\n\n\n

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20) Patches<\/h3>\n\n\n\n

Patches<\/strong> are filler inserts used to repair defects in veneer or panels.
Why it matters:<\/strong> Patch visibility varies by grade and species.<\/p>\n\n\n\n

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21) Mineral Streak<\/h3>\n\n\n\n

A mineral streak<\/strong> is a natural discoloration in hardwood or hardwood veneer.
Why it matters:<\/strong> It can be desirable character or a problem depending on the project.<\/p>\n\n\n\n

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22) Gum Spots<\/h3>\n\n\n\n

Gum spots<\/strong> are resinous accumulations found on panel surfaces.
Why it matters:<\/strong> They can sometimes be sanded out, but they may affect stain absorption.<\/p>\n\n\n\n

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23) Heartwood<\/h3>\n\n\n\n

Heartwood<\/strong> is the mature center of the tree that has stopped growing. It\u2019s typically darker than sapwood.
Why it matters:<\/strong> Heartwood changes the color tone of your final panel look.<\/p>\n\n\n\n

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24) Hardwood<\/h3>\n\n\n\n

Hardwood<\/strong> refers to wood from deciduous trees (not evergreen trees). It does not<\/em> automatically mean the wood is \u201charder.\u201d
Why it matters:<\/strong> Hardwood species vary widely in density, color, and workability.<\/p>\n\n\n\n

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25) MDF (Medium Density Fiberboard)<\/h3>\n\n\n\n

MDF<\/strong> is an engineered panel material made from pressure-cooked wood fiber, resin, and wax.
Why it matters:<\/strong> MDF cores are extremely smooth and stable, making them popular for high-end veneers and painted finishes.<\/p>\n\n\n\n

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Final Tip: Use This Glossary When Ordering Panels<\/h2>\n\n\n\n

When you\u2019re ordering hardwood plywood<\/a>, the fastest way to avoid surprises is to confirm:<\/p>\n\n\n\n