What is quartered oak?

Quartered oak is oak lumber that has been quarter sawed. It is not, like bird’s-eye maple, a wood with a peculiar grain. In order to produce the quarter-grain effect the oak log is first cut into quarters and then boards are sawed by cutting alternately from each face of the quarter. Such lumber not only shows the grain advantageously but does not. warp or check as much as lumber sawed in the customary manner. White quartered oak is commonly used in the manufacture of office chairs.