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Rift sawing is a woodworking process that aims to produce lumber that is less vulnerable to distortion than flat-sawn lumber. Rift-sawing may be done strictly along a log's radials—perpendicular to the annular growth ring orientation or wood grain—or as part of the quarter sawing process.
The quarter sawing is process for rip cutting logs into lumber. It produces quarter-sawn or quarter-cut boards. The resulting lumber can also be called radially-sawn or simply quartered. Wood cut in this way is prized for certain applications, but it will tend to be more expensive as well.
Rip cuts are commonly made with a table saw, but other types of power saws can also be used, including a radial arm saw, band saw, and hand held circular saw.In sawmills the head saw is the first rip-saw a log goes through, which is sometimes a gang-saw, and then the cants may be resawn using other saws and then edged in an edger and sometimes cut to length by a crosscut saw.
A sawmill (saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes (dimensional lumber). The "portable" sawmill is simple to operate. The log lies flat on a steel bed, and the ...
A short, straight cut made at a right angle to a curved layout so that sharper-than-normal curves can be cut with a jig saw or band saw. riffler A paddle-shaped rasp. rift sawn Rip-sawing of lumber perpendicular to the grain, often confused with quarter-sawn. ring shake A natural type of split (shake) occurring between the annual growth rings. rip
Quarter sawn and rift sawn – These terms have been confused in history but generally mean lumber sawn so the annual rings are reasonably perpendicular to the sides (not edges) of the lumber. Boxed heart – The pith remains within the timber, post or beam, with some allowance for exposure. Heart center – the center core of a log.
Lumber can be quickly flat-cut with a side-by-side set of mechanical saws. [3] A slower but sturdier method involves passing the log back and forth over a single saw. To reduce buckling that may occur along the middle of flat-cut boards, the initial cut may be offset from the diameter, and resulting sections cut further before cutting the flitches.
Graf Brothers Flooring and Lumber specializes in, and is the world's largest manufacturer of, rift and quarter sawn oak products. [3] Rift & Quartered lumber results from a unique way of sawing that maximizes the yield of lumber with vertical grain. Vertical grain is preferred because of its excellent technical properties. Lumber that has been ...