10 Mil Veneer
A veneer face of any specie applied to a 10 mil paper back. Although face thickness may vary, the paper back thickness is consistent.
2 Ply Veneer
A decorative wood veneer face with a utility grade wood backer applied at an opposing direction to the face veneer. Also referred to as wood on wood.
Small and tight mottled figure similar in appearance to a bee’s wing. Occurs mostly in East Indian Satinwood, also occasionally in mahogany and eucalyptus.
Due to local sharp depressions in the annual rings, accompanied by considerable fiber distortions. Once the depressions are formed, succeeding growth rings follow the same contour for many years. Rotary veneer cuts the depressions crosswise, and shows a series of circlets called bird’s eyes. It occurs only in a small percentage of Maple trees.
Produced by an uneven contour of the annual rings. The veneer has the effect of being blistered. Must be cut rotary or half-round.
An irregular variegation in the cellular structure of the wood which shows as blocky patches across the grain of the veneer. It is commonly found in makore and anigre.
Achieved when successive veneer leaves in a flitch are turned over like the pages in a book and are glued in this manner. Since the reverse side of one leaf is a mirror image of the succeeding leaf, the result is a series pairs. Individual panels can be matched this way or you can achieve this look over many panels by sequence-matching the panels. Book matching is the most common match. A common problem in book matching is when the “tight” and “loose” sides are matched and reflect light and stains differently. This may yield color variations in some species, which may be minimized by proper finishing techniques.
Produced from a large, wart-like growth on the trunk of the tree. The grain pattern typically resembles a series of eyes laid side by side.
Achieved when veneers are matched as described for book matching but the ends of the sheets are also matched. At times, the veneer being used is not long enough to cover the desired panel heights. In this case the veneer leaves can also be flipped end for end and the ends matched.
Wood species with large medullary rays are quarter cut to reveal the harder and shiny rays which show up as flakes or buttons on the straight grained background. Species such as white oak, lacewood and American sycamore are cut this way specifically to reveal this figure.
A grain appearance characterized by a series of stacked “V” and inverted “V”. Pattern common in plain-sliced (flat-cut) veneer.
Each panel face is made with an even number of flitch sheets with a centerline appearing at the midpoint of the panel and an equal number of veneer sheets on each side of the centerline. The number of leaves on the face are always even, but the widths are not necessarily the same.
Small slits running parallel to the grain of wood, caused chiefly by strains produced in seasoning.
There are four types of core construction used in plywood panels: a) Lumber Core: Consists of a heavy core of sawn lumber between crossbands. The thick center core permits doweling, splining and dovetailing. b). Veneer Core: Method of plywood construction consisting of 3,5,7 or more plies of veneer laid with grain direction of adjacent plies at right angles to each other. c). Particle Board: This type of core consists of chips or flakes of resin-coated wood fused together under heat and pressure to form a core for plywood. d). Mineral Core: Used for fireproof panel construction. Veneers are bonded to a hard noncombustible material.
Figures, which extend across the grain as mottle, fiddle-back, raindrop and finger-roll are often called cross figure or cross fire. A pronounced crossfire adds greatly to the beauty of the veneer.
The veneer sheet between the core and face veneer. Its grain runs at right angles to the grain of adjacent layers, thereby providing the remarkable stability of hardwood plywood.
Type of figure or irregularity of grain resembling a dip in the grain running at tight angles, or nearly so, to the width of the veneer.
Produced from the portion of the tree just below the point where it forks into two limbs. The grain is twisted, creating a variety of flame figures. Often resembles a well formed feather. The outside of the block produces a swirl figure that changes to full crotch flame figure as the cutting approaches the center of the block.
See Flat Cut
Found mostly in Maple or Birch, and is due to the fibers being distorted and producing a wavy or curly effect in the veneer.
Domestic Wood Veneer
A reference to wood veneers commonly found in the United States and North America as a whole.
Thin strips of veneer used to cover the exposed edges of panel substrates. This veneer is usually available in rolls of various length and comes either pre-glued or unglued.
The better side of any plywood panel in which the outer plies are of different veneer grades. Also veneer spliced to a certain pattern and cut to exact size.
A fine, strong, even, ripple figure as frequently seen on the backs of violins. It is found principally in Mahogany and Maple; cut occurs sometimes in other woods.
The pattern produced in a wood surface by annual growth rings, rays, knots, deviations from natural grain such as interlocked and wavy grain, and irregular coloration. Appears across the grain. Mottle, fiddleback and raindrop are often called cross figure or cross fire.
Also called Plain Slicing, it is the most common method of veneer manufacturing, producing a grain pattern known as cathedral. Because each leaf in the flitch is similar, a consistent and even matching pattern is possible. Flat cut veneer is ideally suited for wall panels and furniture.
Flake figure is developed only in those species which have very heavy medullary ray growth, specifically Oak, Lacewood, and Sycamore. When the saw or knife cut is directly on or near to the radial, it is close to parallel with the medullary ray and therefore develops the “Flake” effect.
Wood veneer which is joined, processed, sanded and backed with paper or other material to create a fully ready to use dimensional sheet of real wood veneer.
A Section of a log made ready for cutting into veneers. After cutting, all bundles are laid together in sequence as they were sliced.
Classifying veneers according to quality standards for each species. This greatly impacts the price and end use of the veneer.
Size and arrangement of the cells and pores of the living tree. Grain is not synonymous with figure. Woods fall into three groups: Fine grained (Birch, Cherry, Maple, etc.), medium grained (Walnut, Mahogany, etc.) and coarse grained (Oak, etc.).) Coarser grained woods can usually be cut to develop a more conspicuous pattern.
Patches or black spots occurring primarily in American Cherry. This undesirable characteristic is acceptable in varying degree in most grades of Cherry.
Half Round Slicing
Similar to rotary peeling, also producing a high veneer yield. Used primarily to add width to narrow stocks by increasing the plane of cut. Also used to enhance a particularly wild grain pattern. Matching is possible because the leaves can be kept in sequence. Half round cutting may be used to achieve “flat cut” veneer appearance.
General term used to designate lumber or veneer produced from broad-leafed or deciduous trees in contrast to softwood, which is produced from evergreens or coniferous trees.
The non-active center of a tree generally distinguishable from the outer portion (sapwood) by its darker color.
Veneer strips are used and matched to both sides of the center line, at an angle. The resulting appearance is reminiscent of the bones of a fish as they are attached to the backbone.
The line between the edges or ends of two adjacent sheets of veneer or strips of lumber in the same plane.
The process of gluing or bonding the component sections of the plywood into a single permanent until stronger than the original wood itself.
In knife-cut veneer, that side of the sheet that was in contact with the knife as the sheet was being cut. The bending of the wood at the knife edge causes cutting checks.
Medium Density Fiberboard (MDF)
A panel or substrate material manufactured from wood fiber and resin. Generally considered the best substrate for laminating veneers.
A dark patch or discoloration in the wood, which occurs because of the presence of minerals in the soil in which the tree is growing. Mineral streaks are natural discolorations of the wood substance.
A variegated pattern which consists principally of irregular, wavy fibers extending for short distances across the face. If there is also some irregular cross figure in a log with a twisted interwoven grain, the broken stripe figure becomes a mottle.
Opening produced when a portion of the wood substance of a knot has dropped out, or where cross checks have occurred to produce an opening.
A panel composed of small particles of wood and wood fiber that are bonded together with synthetic resin adhesives in the presence of heat and pressure.
Peanut Shell Figure
A type of figure occurring in some woods similar to quilted or blistered figure. These woods are typically cut to promote a random and wild grain effect with a three dimensional feel. Occuring most commonly in Tamo Ash and Bubinga.
Pockets of disintegrated wood caused by localized decay, or wood areas with abrupt color change related to localized injury such as bird peck. Peck is sometimes considered as a decorative effect such as bird peck in pecan and hickory or pecks in cypress.
Any of various synthetic thermosetting resins, obtained by the reaction of phenols with simple aldehydes and used to make molded products and as coatings and adhesives. Also called phenolic resin.
Sound knots 1/4 inch or less that do not contain dark centers. Inconspicuous or blending pin knots are barely detectable at a distance of 6′ to 8′, do not seriously detract from the overall appearance of the panel, and are permitted in all grades.
See Flat Cut.
A common reference to AA Grade veneer when veneer grading standards are applicable.
Quarter Slicing / Cut
This cut requires the largest diameter logs and produces straight grained veneers. The quarter slicing of oak can result in the appearance of flake.
A larger , more exaggerated version of pommele or blister figure. The cellular figure is elongated and closely crowded giving it a pillowy three dimensional effect. It is most commonly found in Maple, Mahogany, Moabi and Sapele.
A panel having the face made up of specially selected dissimilar (in color and grain) veneer strips of the same species to stimulate lumber planking.
Wood veneer cut from any log by any slicing method that is dried and then used as a natural flitch or leaf of veneer. Much production and machining of this veneer has to be accomplished prior to the final application to a substrate.
A man-made veneer which uses real wood fiber with natural colorants to simulate various color, figure and grain seen in real wood veneers.
Result of quarter-slicing a log and the appearance actually is between broken stripe and plain stripe. It gives the general appearance of a ribbon sometimes slightly twisted.
Produced by cutting at a slight angle to the radial to produce a quartered appearance without excessive ray flake. The rift cut method, commonly used for Oak, can only be used on sizable logs. Rift cut veneer can easily be sequenced and matched.
If the twist in the grain of broken stripe is all in one direction, a rope figure results.
The log is turned in a circular motion against a knife, peeling off a continuous thin sheet of wood veneer (like unrolling wrapping paper). It is the most economical method of producing veneer, resulting in the highest yield. The grain is inconsistent and leaves are most difficult to match. This type of veneer is best suited for paint grade or utility surfaces.
The panel face is made from components running through the flitch consecutively. Any portion of a component or leaf in starting the next panel.
This is the outer portion of the tree. As additional layers of growth accumulate on the outer perimeter, the inner layers of the sapwood becomes heartwood. Sap is lighter in color and the differentiation in color and thickness of the sap layer varies considerably by species.
A common reference to A Grade veneers when veneer grading standards are applicable.
A method of arranging veneer faces such that each face is in order relative to its original position in the tree and, therefore, contains features of grain and figures similar to adjacent faces.
Same as Flexible Veneer.
A method of joining individual leaves of veneer together to create a single, standard dimensional sheet veneer. This method uses a combination of book matching and butt matching and is commonly used with burl and crotch veneers.
Means that veneer leaves in a flitch are “slipped.” Successive veneer leaves in a flitch are “slipped” one alongside the other and edge-glued in this manner. The result is a series of grain repeats, but no pairs. The danger with this method derives from the fact that grain patterns are rarely perfectly straight. Sometimes a grain pattern “runs off” the edge of the leaf. A series of leaves with this condition could usually make a panel look like it is leaning. In the book matching the pairs balance each other.
General term used to describe lumber or veneer produced from needle and/or cone-bearing trees. (See Hardwood).
Knots that are solid across their face and fixed by growth to retain their place.
Spliced Face Veneer
Face veneers that have been joined in any one of several matching effects through the careful factory process of tapeless splicing.
Produced from the base of the tree. Here the grain pattern is always swirly twisted and often accompanied by cross fire and patches of burl. The sizes are normally small.
A lesser degree of crotch figure. The grain tends to swirl around in a random pattern. This figure frequently appears in cherry, mahogany, walnut and maple.
In knife-cut veneer, that side of the sheet that was farthest from the knife as the sheet was being cut and containing no cutting checks (lathe checks).
A thin sheet of wood, rotary cut, sliced or sawn from a log or flitch. Veneering goes back to the early days of the Egyptians, about 3,500 years ago. Down through the years and cultures, veneering has enriched furniture and architectural interiors with sheets of rare and beautiful woods bonded to other plain, sturdy wood based substrates to form a panel.
See description for Spliced Veneer Face
Logs, either hardwood or softwood, which have specific characteristics or traits which qualify them to be sliced for veneer only. Less than 5% of all logs are of veneer quality.
Wood on Wood Veneer
Same as 2-Ply Veneer and commonly interpreted as no black line veneer.
Holes resulting from infestation of worms.