Wood Species

Oak Wood

Quercus alba (White) / Quercus rubra (Red)

Oak is one of the most widely used hardwoods globally, divided into two commercial groups: white oak and red oak. White oak heartwood is light to medium brown with an olive cast and prominent ray fleck on quartersawn faces. Its defining microscopic feature is tyloses — cellular growths that plug the vessels — giving white oak exceptional water resistance and making it the traditional choice for wine and whiskey barrels. Red oak is pinkish-brown with open vessels (no tyloses), so it lacks white oak's water resistance but remains a durable, cost-effective hardwood for indoor applications.

Walnut Wood

Juglans nigra

Black walnut is widely regarded as North America's most valuable domestic hardwood. The heartwood is a rich chocolate brown ranging from pale brown to deep dark brown, sometimes with purple or darker streaks, while the sapwood is pale yellow to nearly white. The grain is typically straight, occasionally wavy or irregular, with a medium texture and excellent natural luster. When sanded, the surface becomes exceptionally smooth and silky to the touch. With a T/R ratio of just 1.4, black walnut ranks among the most dimensionally stable North American hardwoods — it resists warping and cracking better than virtually any other domestic species.

Beech Wood

Fagus sylvatica (European) / Fagus grandifolia (American)

Beech is a hard, strong, fine-grained hardwood widely used in European and Chinese manufacturing. The heartwood is pale to medium yellow-brown (steaming gives it a uniform pinkish tone — an industry standard practice), with a straight grain and fine, even texture. Quarter-sawn faces show distinctive medullary ray fleck. Beech is notably harder than both red oak and black walnut. Its primary trade-off: high shrinkage. Beech moves more than most commercial hardwoods, so design must allow for expansion and contraction.

Birch Wood

Betula alleghaniensis (Yellow Birch) / Betula papyrifera (Paper Birch)

Birch is prized for its fine, even texture and pale coloration. Yellow birch (the commercially most important species) has a light reddish-brown heartwood with nearly white sapwood — the distinction is often subtle. The grain is typically straight, occasionally with light waves, and the uniform texture makes it an excellent canvas for painted or clear-coated finishes. Birch plywood is widely regarded as the highest-quality hardwood plywood available, known for its strength, stability, and smooth face veneer. T/R ratio of 1.3 gives yellow birch very good dimensional stability.

Acacia Wood

Acacia spp. (various species, primarily from Southeast Asia and Australia)

Acacia is a dense, durable hardwood with strikingly rich natural grain patterns — often featuring contrasting bands of dark brown and golden tones that give each piece unique character. It is naturally water-resistant with high oil content that helps repel moisture, making it one of the few hardwoods suitable for both kitchen and outdoor applications without chemical treatment. Boards show dramatic color variation from light amber to deep chocolate. Acacia's hardness surpasses oak, maple, and walnut in many species, giving it outstanding wear resistance.

Sapele Wood

Entandrophragma cylindricum

Sapele is an African hardwood from the same family as mahogany (Meliaceae), and it's often used as a mahogany substitute at roughly half the cost. The heartwood is a medium to dark reddish-brown with a distinctive interlocked grain that produces a striking ribbon-stripe figure on quarter-sawn faces — this chatoyance (cat's-eye effect) is sapele's signature visual characteristic. The wood has a fine, even texture with good natural luster. Sapele is harder, denser, and stronger than genuine mahogany (Swietenia), though with a somewhat coarser texture. It offers about 85% of mahogany's appearance at a substantially lower price point.

MDF (Medium-Density Fiberboard)

Medium-Density Fiberboard — engineered wood composite

MDF is manufactured by breaking down hardwood or softwood residuals into wood fibers, combining them with wax and a synthetic resin binder (typically urea-formaldehyde), and forming panels under high temperature and pressure. The result is a panel with a perfectly smooth, uniform surface and consistent density throughout — no knots, grain, or voids. Moisture-resistant (MR) MDF uses melamine-modified UF resin for kitchen and bathroom applications. Standard MDF is strictly for indoor use. The uniform composition makes MDF ideal for precision CNC machining, painted finishes, and laser engraving — it cuts cleanly without tearout.

Plywood

Cross-laminated wood veneer panels — available in multiple face species

Plywood is made by laminating thin layers of wood veneer (plies) with the grain of each layer rotated 90° to the adjacent layer. This cross-grain construction gives plywood exceptional dimensional stability and near-isotropic strength — it resists splitting, cracking, and warping better than solid wood. Thickness determines the application: thin plywood (3–5mm, typically 3-ply) is the standard choice for box bottoms and lids — light, stable, and rigid enough to hold its shape while keeping total box weight down. Thicker plywood (9–18mm, 5-ply and up) is used for the box body itself, providing structural strength and screw-holding capacity for hinges and hardware.

Common face veneer species: birch-faced, pine-faced, and paulownia-faced.