North America (Juglans nigra and very seldom in Europe (Juglans regia).
RANGE:
Branch forks of Walnut trunks.
USES:
Architectural woodwork, upright and grand piano production, gunstocks.
PROPERTIES:
Lengths over I m very seldom, often open in the crotch
MACHINING:
The wood is easy to work with all band and machine tools. Walnut is excellent to mold. The direction of growth must be observed to prevent fibre pick‑ up.
SEASONING:
Drying has to be carried out with particular care where the Walnut Crotch is concerned so that no tension checking occurs in the crotchy part.
FINISHING:
The very smooth wood takes all stains well particularly water and nitro stains. The wood polishes well when fillers are used.
JOINTING:
Joints using screws, nails and glue are easy to produce and are of normal tensile strength. However, alkaline glues can cause reaction stains.