Channels sliced across hold lots of pigment
Cell structure of wood forms channels that trap and hold pigment tance of pigment will be uniform, resulting in an evenly-stained board.
The channels in other woods, like pine and oak, vary significantly in size between the last growing, porous, spring growth (earlywood) and the tight, dense, summer growth (latewood). The relatively large channels of the spring-growth wood hold lots of pigment, but very little pigment gets into the tiny summer-growth channels.
When the channels are sliced lengthwise (picture a straw, split down the middle), they'll fill
Pigment particles lodge in open pores.
Spring-growth wood has wider channels.
Channels sliced lengthwise can't hold much pigment
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