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Slab Information
Claro burl cookie CWB82
Dimensions: 37 x 24.5 x 2
Claro Walnut cookie CWB82
Claro Walnut is a commercially important tree species that’s used as rootstock on walnut orchards. The robust roots of Juglans hindsii are well-suited to the California climate, and are combined with grafts of English Walnut (Juglans regia) to produce a higher yield of walnuts. This is a fine example of the exquisite figure often present in Claro burl stock for which it is known around the world.
Length: 37
Thickness: 8/4
- Common Name(s): Claro Walnut, California Black Walnut
- Scientific Name: Juglans hindsii (also J. californica)
- Distribution: California and Oregon
- Tree Size: 30-60 ft (9-18 m) tall, 3-5 ft (1-1.5 m) trunk diameter
- Average Dried Weight: 40 lbs/ft3
- Janka Hardness: 1,130 lbf
- Crushing Strength: 7,580 lbf/in2
Heartwood: Heartwood can range from a lighter pale brown to a dark chocolate brown with darker brown streaks. Color can sometimes have a gray, purple, or reddish cast.
Sapwood: Sapwood is nearly white.
Grain: Grain is usually straight, but can be irregular.
Texture: Has a medium texture and moderate natural luster.
Claro Walnut is rated as very durable in terms of decay resistance, though it is susceptible to insect attack.
Typically easy to work provided the grain is straight and regular. Planer tearout can sometimes be a problem when surfacing pieces with irregular or figured grain. Glues, stains, and finishes well, (though walnut is rarely stained).
Claro Walnut is a commercially important tree species that’s used as rootstock on walnut orchards. The robust roots of Juglans hindsii are well-suited to the California climate, and are combined with grafts of English Walnut (Juglans regia) to produce a higher yield of walnuts. Another closely related species, Juglans californica, has a distribution that is farther south than Claro Walnut, and is sometimes referred to as Southern California Black Walnut; some sources consider these two to be the same species with simply two varieties.
Note: This cookie is the lower rootstock from a California walnut orchard. It is of modest size as the trees were removed to make room for a new school prior to reaching their full maturity.