Which sawing method is described as producing pieces with growth rings at or near right angles to the wide surface?

Which sawing method is described as producing pieces with growth rings at or near right angles to the wide surface?

• A. Quarter-sawing
• B. Plain-sawing
• C. Rift-sawing
• D. Cross-sawing

Answer: (A)

Growth ring orientation in a board depends on how the log is cut. In quarter-sawing, the log is divided into quarters and the boards are cut so that the growth rings run nearly perpendicular to the wide surface. This near-90-degree angle gives grain that appears straight across the face and improves dimensional stability during drying, with less tendency to cup or warp. That’s why this method is described as producing pieces with growth rings at or near right angles to the wide surface. Plain-sawing leaves rings more parallel to the wide face, producing more variable grain and greater movement. Rift-sawing aims for about a 60-degree angle to the wide face, not 90 degrees. Cross-sawing isn’t a term used for achieving a specific near-right-angle ring orientation.

Growth ring orientation in a board depends on how the log is cut. In quarter-sawing, the log is divided into quarters and the boards are cut so that the growth rings run nearly perpendicular to the wide surface. This near-90-degree angle gives grain that appears straight across the face and improves dimensional stability during drying, with less tendency to cup or warp. That’s why this method is described as producing pieces with growth rings at or near right angles to the wide surface. Plain-sawing leaves rings more parallel to the wide face, producing more variable grain and greater movement. Rift-sawing aims for about a 60-degree angle to the wide face, not 90 degrees. Cross-sawing isn’t a term used for achieving a specific near-right-angle ring orientation.