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Riff sawn versus quarter sawn
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Topic: Riff sawn versus quarter sawn (Read 9230 times)
Sunfish1909
Newbie
Posts: 53
Riff sawn versus quarter sawn
«
on:
July 29, 2011, 09:44:52 AM »
Any disadvantages to using riff sawn ash for a plank? Quarter sawn board the end grain runs almost perpendicular to the faces. Riff sawn is more like 30 to 45 degrees.
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Sunfish1909
Bob Gray
Class Member
Posts: 194
Re: Riff sawn versus quarter sawn
«
Reply #1 on:
July 29, 2011, 03:25:25 PM »
I've made a good many planks and I can't really say that I've ever had any quarter sawn ash. The grain in ash is so squirrley it's hard to saw what the grain is. I have never had a failure using regular ash. I like to use strips 2" or less wide and reverse the ends on every other strip to keep warping to a minimum.
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Ken Smith
ADMIN
Posts: 289
sail often, travel light
Re: Riff sawn versus quarter sawn
«
Reply #2 on:
December 22, 2011, 07:00:18 PM »
I strip built a plank a few years ago, and started with fairly flat grain, so the strips were nearly quarter sawn. I had grain run-out, meaning the major grain was angled to a few strips and entered and left the strip in a span of less than ten inches.
The first day of use, in a fairly stiff breeze, I heard a bang, but everything felt fine, so I kept sailing. Later I found the strip failed in tension along one of the wandering grain lines. This strip was the one closest to the leading edge. I used 3/8 x 5/4 thick strips and a pine core. And got zero plank life because of grain selection.
So choose wisely. You are the wood grader.
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Ken Smith
DN4137US
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