Lacewood

Lacewood is a trade name for wood cut to display a bold ray-fleck figure, and one of its classic sources is Cardwellia sublimis, the Northern Silky Oak of the tropical rainforests of northeastern Queensland, Australia. It is not a true oak — it belongs to the Proteaceae family — but like the true oaks it carries very large medullary rays, and when the log is quartersawn those rays split the surface into a shower of pale flecks that give 'lacewood' its name.

At a glance it reads as a warm reddish-brown wood scattered with cream-colored ray flecks that form a wavy, snakeskin-like or lace-like pattern. The figure is strongest on the radial (quartersawn) face; flat-sawn boards show a much plainer look. It is a medium-density, moderately hard hardwood used almost entirely for its decorative surface.

The heartwood is a pinkish to reddish-brown, sometimes with a coppery cast, while the sapwood is paler and less distinctly figured. The signature feature is the ray fleck: on the quartersawn face the very large rays appear as numerous cream to tan flecks set against the darker ground, producing the wavy, mottled 'lace' pattern seen on the sample. Grain is generally straight to slightly interlocked with a medium-to-coarse, somewhat open texture, and the surface has a moderate natural luster that lifts under a clear finish.

Density is moderate — roughly 500–600 kg/m³ when dry — and Janka hardness sits around 1,100 lbf, placing it in the medium range: firm enough for furniture and joinery but not a heavy-wear flooring timber.

Natural durability is only moderate. The heartwood is not reliably decay-resistant and the wood is best regarded as a wood for interior use; it is not suited to ground contact or exposed exterior work without protection.

Lacewood is a decorative-surface wood first and foremost. It is most valued as veneer and as thin solid stock for fine furniture, cabinet fronts, paneling, and architectural feature work, where its ray fleck can be shown to full effect.

Beyond veneer it is used for small speciality items — boxes, turned objects, pens, knife scales, and inlay or marquetry accents — and occasionally for lighter joinery and interior trim. Because the figure is the whole point, boards are usually quartersawn and reserved for show faces rather than hidden structure or hard-wearing floors.

Lacewood works reasonably well with both hand and machine tools but the large rays make it prone to tearout and lifting where the fleck meets the surface, so sharp tooling, light finishing cuts, and a backing cut or scraper help keep the fleck clean. The open, sometimes interlocked grain benefits from a sanding sealer or grain filler before finishing to avoid a patchy surface. It glues and finishes well and takes a clear film finish that deepens the reddish ground and brightens the flecks.

It turns and machines acceptably, though the coarse texture can chip; pre-drilling for screws and nails is sensible. Like many rainforest species, its fine dust can be a respiratory and skin irritant, and silky oaks in particular have a reputation for causing skin and eye irritation in sensitive workers, so use dust extraction, eye protection, and a mask.

Cardwellia sublimis is not listed on CITES and is not classed as an endangered species, but because it is a rainforest hardwood it is worth sourcing from responsibly managed or certified supply where possible.

Genuine Australian lacewood (Cardwellia sublimis) is a specialty item outside Australia and is most commonly encountered as veneer; solid, well-figured quartersawn boards are less common and priced as a decorative timber rather than a commodity hardwood, so expect a premium over plain domestic species. Availability is best through veneer suppliers and exotic-wood dealers, and stock varies with what has been cut.

Note that 'lacewood' is a shared trade name: material sold under it may instead be Grevillea robusta (Southern Silky Oak), South American leopardwood/lacewood (Roupala/Panopsis), or quartersawn London plane. All show ray fleck, so confirm the species if it matters. Cardwellia sublimis carries no CITES restriction; sustainably or FSC-sourced material is the responsible choice for a tropical hardwood.