Honey Locust — Density, Movement, Workability & Cost

Ask for locust at most yards and you'll need to specify which one — honey locust (Gleditsia triacanthos) and black locust get confused constantly despite being genuinely different woods, and the mix-up matters because their working properties and their intended uses diverge in real ways.

Pink, lustrous, and unusually stable for its density

At 47 lb/ft³ and 1,580 lbf on the Janka scale, honey locust is a hard, dense wood with a pinker, more lustrous appearance than black locust's yellower tone. What stands out numerically is its volumetric shrinkage — 10.8%, low for a wood this dense — which means it holds dimension better in service than most domestic hardwoods of comparable hardness. It turns beautifully and polishes to a natural sheen without much help from a finish.

Movement, and a typical turned-blank weight

Tangential shrinkage of 6.6% against a radial figure of 4.2% gives a 1.6 ratio, comfortably under this site's 2.0 movement-prone line. A 10"-wide flatsawn panel, computed from honey locust's own tangential coefficient, gives up about 0.132" (3.4mm) across its width on the swing from 12% down to a dry 6% moisture content; the wood movement calculator handles other widths. A typical bowl-roughing blank, 2" thick and 8"x8", weighs about 3.5 lb at this species' milled density — check other blank sizes on the wood weight calculator.

The real obstacle isn't the wood, it's the log

Gluing is straightforward, though the dense late-growth wood benefits from a scuffed surface before adhesive goes on. Finishing needs almost nothing — the wood's natural lustre means a thin oil or wax coat is often enough to bring out the colour fully. The genuine limiting factor with honey locust is supply: it's an urban and hedgerow tree more often than a forest-grown timber species, so boards tend to be short and frequently include bark pockets from the tree's often-crooked growth habit.

Durability, cost, and the two locusts' price gap

Honey locust's heartwood is moderately durable — respectable, though well short of black locust's exceptional rot resistance. At roughly $8 per board foot it's priced in this site's moderate tier. Turnery, furniture, fence posts, pallets, and flooring are its main uses; the fence-post use trades on that moderate durability rather than the near-permanent resistance black locust offers for the same job.

The two locusts, told apart

Black locust is the one to reach for when rot resistance is the deciding factor — its heartwood rivals teak and genuinely outlasts honey locust outdoors. Honey locust's advantage is appearance and stability: the pinker colour, the natural lustre, and the low volumetric shrinkage make it the better choice for turned or indoor furniture work where honey locust's more modest durability isn't actually being tested.

What people actually ask about honey locust

Is there a working-feel or weight difference between honey locust and black locust that would help identify a board beyond just colour? Not a reliable one — the two overlap closely enough in density and hardness at the bench that colour and the specific project the seller says it's intended for are more useful clues than trying to judge species by feel or weight alone.

Is honey locust safe to burn or use for smoking food, given the tree's notorious thorns? The thorns are a hazard during harvesting and handling, not a property of the finished wood — cured honey locust lumber carries no residual toxicity from the thorns and is unrelated to any food-safety concern.

Does the short-board limitation mean honey locust is a poor choice for anything beyond turning and small furniture parts? It rules out long structural spans or wide single-board panels, but for turned bowls, small furniture components, and accent pieces where the natural board length is already adequate, the supply limitation doesn't meaningfully constrain the project.

Does honey locust need a topcoat, or is a bare oiled surface durable enough for furniture? For anything handled regularly, a wiped oil finish or a thin oil-varnish blend protects the surface adequately while still showing off the natural lustre; a piece that will see heavy daily contact, like a tabletop, benefits from a harder film finish over the oil rather than oil alone.

Honey locust's shrinkage numbers are Table 4-3 of the USDA Forest Products Laboratory's Wood Handbook (FPL-GTR-190, 2010); density and hardness are The Wood Database's own 12%-MC testing.