What is said and shown in the video was mostly right...
He shows one so-called "Modern" method of quartersawing. Note first pic below from the
Stephan Woodworking site. Both the vid dude (at about 5:30) AND the pic below are
WRONG in identifying "Rift sawn" lumber...
Traditional Plain (aka "Flat"), Quarter and (REAL) Rift sawn,
courtesy of Advantage Lumber:
Real Rift sawn is the most time consuming and most wasteful method of milling (see graphic above), produces the most dimensionally stable and strongest product (when used flat, as in springboards, as the grain of each board is perpendicular ("on edge") throughout) and also results in the most expensive product. Quartersawn is a close second in strength, stability and cost.
I've purchased loads of finish lumber and custom milling through the years, and of late there seems some oft repeated misinformation being regurgitated as fact... For some reason, several years back I began to notice some "talking heads" describing Rift as having grain angle further away from 90* than Quartersawn. Bunk! Nowadays, it seems most popular "experts" AND many lumber sources repeat the same BS information. I STRONGLY suspect this false view is the product of Large Lumber Manufacturers, who want maximum recovery and highest profits without having to mess with the involved process of TRUE Rift sawing. It's a case of so-called Experts spitting out falsehoods to please these Large Budget ADVERTISERS. Simply untrue. Pisses me off.
Note in pic below (
courtesy of Bart Moyers) that when lumber is plain sawn, the first board or two from center of log are "accidentally" Quartersawn! Savvy mill operators pull these to stack in their "Premium Lumber" pile to sell at higher prices. Softwoods such as Fir, Spruce, Pine, etc. are not regularly quartersawn except for specialty markets. Fortunately many mills don't take the time to separate out quartersawn softwood. SO, if one is looking for quartersawn at their local lumber yard, forget checking faces to find straight grain, instead, sight the boards from the ends. You'll likely see boards with grain running near perpendicular from top to bottom of some boards, and THOSE are the ones which will be strongest for springboards...., and will cost no more than the more run of the mill stuff.