Pecan — Density, Movement, Workability & Cost

Pecan (Carya illinoinensis) belongs to the hickory genus, but flooring buyers who want hickory's hardness without hickory's movement problems reach for this species specifically — it gives up almost nothing on the Janka scale while behaving considerably better across a wide board.

Nearly as hard, meaningfully more stable

At 46 lb/ft³ and 1,820 lbf on the Janka scale, pecan sits just below shagbark hickory's 1,880 lbf — close enough that the working feel at the bench is nearly identical, including the need for a slow, cool feed rate to avoid burning and the same tendency to blunt carbide faster than a softer domestic species. Where pecan actually separates from its rougher-and-tougher cousin is stability: its radial shrinkage runs two full percentage points lower than shagbark's, a meaningful difference on any wide panel.

The movement numbers that make pecan the better flooring hickory

Radial shrinkage of 4.9% against a tangential figure of 8.9% gives a 1.8 ratio, and the lower absolute numbers translate directly into calmer behaviour in service. A 12"-wide flatsawn panel moving from an 11% moisture content to a dry 6% loses about 0.178" (4.5mm) across its width, computed from pecan's own tangential coefficient — see the wood movement calculator for other panel widths. A 3/4"-thick, 3.25"-wide strip flooring board, 7 feet long, weighs roughly 5.5 lb at pecan's milled density; the wood weight calculator covers other flooring sizes.

Working pecan's dense, shock-resistant grain

Gluing gives no particular trouble given proper surface preparation — flat, cleanly jointed faces matter more here than on a softer wood, simply because the density makes any gap harder for the adhesive to bridge. Like shagbark hickory, pecan carries a sharp contrast between pale sapwood and darker heartwood, and it sands to a smooth, hard surface that holds a film finish well without any special preparation.

Durability, cost, and its main markets

Pecan has no decay resistance and, like the true hickories, is a favourite target of powderpost beetles in storage — stack and monitor it the same way. At roughly $7 per board foot it's priced the same as shagbark hickory in most yards, despite the meaningfully better stability, since the two species are frequently sold under a shared "hickory" grade rather than separated by name. Flooring, cabinetry, furniture, tool handles, and veneer are its main uses — flooring in particular is where pecan's stability advantage over shagbark actually shows up in a buyer's decision.

Why a flooring buyer picks pecan over shagbark

For a struck tool handle, shagbark hickory's slightly greater shock resistance is worth its wider movement and rougher machining. For a floor, a cabinet carcass, or any application where a wide glued panel needs to stay flat, pecan's lower shrinkage — without giving up much hardness at all — makes it the more sensible choice of the two hickories, and it's why "pecan hickory" flooring is a recognized, separately marketed product rather than just a substitute when shagbark is unavailable.

What people actually ask about pecan

Is pecan flooring actually a different product from "hickory" flooring, or is it the same thing? They're related but genuinely distinct species with different movement behaviour; some flooring is sold generically as "hickory" and may blend species, so a buyer who specifically wants pecan's better stability should ask which species is actually in the box.

Does pecan wood come from the same trees that produce pecan nuts for eating? Yes — it's the same species, and lumber-grade pecan is typically harvested from older orchard trees past peak nut production or from wild-growing pecan outside orchard cultivation.

Is pecan hard enough to resist dents from dropped kitchen items on a countertop? At 1,820 lbf it's among the hardest domestic species available for that use, comparable to shagbark hickory and well above oak or maple, though nothing is fully dent-proof against a hard, sharp-edged impact.

The Wood Database supplied pecan's density and Janka figures at 12% moisture content; shrinkage comes from Table 4-3 of the USDA Forest Products Laboratory's Wood Handbook (FPL-GTR-190, 2010), which lists this species separately from the true hickories under "Hickory, pecan."