Bloodwood — Density, Movement, Workability & Cost

Every red wood eventually browns under UV light except this one, or close to it — bloodwood (Brosimum rubescens) holds its vivid red colour far better than padauk or purpleheart do, darkening only modestly over years rather than shifting to an entirely different hue the way its red-toned competitors on the exotic-wood shelf tend to.

Dense, brittle, and the reddest wood in trade

At 66 lb/ft³ and 2,900 lbf on the Janka scale, bloodwood is very dense and genuinely brittle — it chips at the edges of a cut and splinters readily when routed against the grain, a real contrast to a dense-but-tough species like African blackwood. Turners consistently love it for the colour payoff at the lathe; hand-tool users mostly don't, since the brittleness fights a plane or chisel more than the raw hardness alone would suggest.

Movement in narrow, accent-scale applications

Radial shrinkage of 4.6% against a tangential figure of 7% gives a 1.5 ratio, reasonably contained — not that movement is the reason most buyers reach for this wood at only 4" wide, a typical width for bloodwood used as inlay or banding. Even so, that strip loses about 0.047" (1.2mm) across its width moving from an 11% moisture content down to a dry 6%; a wider piece runs through the wood movement calculator. The same accent stock, 1/2" thick and 2 feet long, weighs about 1.8 lb — the wood weight calculator covers other sizes.

Gluing carefully, and a dust that stains everything

Gluing is acceptable once the surface is freshly machined, standard practice for a dense tropical species. It polishes to a natural gloss with minimal effort. The real working hazard here isn't structural — it's the dust, which stains everything it touches red, including glue lines, adjacent light-coloured woods on the same bench, and skin. A dedicated workspace or careful containment matters more with bloodwood than with a less pigmented species.

Durability, cost, and where the colour retention pays off

Bloodwood is very durable and insect resistant. $26 per board foot puts it in this site's premium tier. Turnery, inlay and banding, knife scales, furniture accents, and musical instruments round out its markets — every one of them chosen specifically because the colour actually lasts, unlike the fading or browning that defines so many other red and orange exotic species.

The red-wood comparison worth making explicitly

Against purpleheart, whose famous violet colour is explicitly temporary and expected to fade, bloodwood's red is the more durable design choice for a piece meant to look the same in ten years as it did on day one. Against African padauk, whose bright orange-red fades toward a muddy purple-brown, bloodwood again holds its colour with meaningfully less drift — the tradeoff is bloodwood's greater brittleness and higher price relative to either alternative.

What people actually ask about bloodwood

Does a UV-blocking finish make bloodwood's colour retention essentially permanent, given it already fades less than purpleheart or padauk? It gets close but not fully permanent — a UV-inhibiting topcoat slows the modest gradual deepening even further, though no finish available to a small shop stops UV-driven colour change completely on any wood, bloodwood included.

Why does bloodwood chip so easily at the edges compared to other dense hardwoods? Its brittleness is a real structural property distinct from hardness — a wood can be very hard (resistant to denting) while still being brittle (prone to fracturing rather than flexing under a sharp, localized force like a router bit or a chisel corner), and bloodwood sits firmly in that combination.

How do I keep bloodwood dust from staining my other wood species on the same project? Work bloodwood in a separate session or dedicated area where possible, clean the bench and tools thoroughly between species, and consider a dust barrier if bloodwood and a pale wood are being finished in close proximity on the same build.

The Wood Database is the source for bloodwood's density, Janka hardness and shrinkage — this species isn't tabulated in the USDA Forest Products Laboratory's own Table 4-4. Bloodwood belongs to Moraceae, the fig and mulberry family — an unusual botanical home for a wood this dense, since most of that family runs soft and fast-growing.