The grain is typically coarse and straight, with occasional interlocked grain
, giving it a tendency to produce a very attractive ribbon striped effect when quarter sliced or sawn.
However, it is cautioned that compression-bending relationships assumed in ASTM standard D 6570 for mechanically graded lumber should not be used with either tropical or temperate hardwood species that typically contain interlocked grain
without further verification of the inherent relationship.
IT WORKS WELL WITH HAND TOOLS OR MACHINERY, EXCEPT FOR A SLIGHT BLUNTING EFFECT ON CUTTING SURFACES IF THERE IS AN INTERLOCKED GRAIN
The wood is easily worked with both hand and machine tools; some experts recommend a reduced cutting angle to avoid tearouts when planing material with an interlocked grain
It has mostly interlocked grain
and medium to coarse texture.
Material can be difficult to work due to interlocked grain
and oily surface of the wood.
Karri's heartwood is a reddish-brown color, often with interlocked grain
The wood's interlocked grain
is said to account for the distinctive ribbon or pencil stripe that Sapele yields when quarter cut.
It usually features a plain look, but the interlocked grain
can yield a ribbon stripe.
Experts recommend a cutting angle of 20 degrees when planning to avoid tearouts with interlocked grain
Other sources credit the interlocked grain
with producing the striped figure on quartered surfaces.
Care is needed when drying to avoid warping and twisting because of the tree's interlocked grain
, which also makes wood difficult to split and nail.