"2" only did half the depth of the scarf on the 1/2" floor ply, so I crosscut/kerfed it for stock removal and cleaned it up with a block plane. When the plane is sharp and set right, and you can cut spirals of crossgrain doug fir…"
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Shawn Baker's Discussions
Fir vs Meranti dory floor
16 Replies
This will be heavily glassed and painted on both sides, not worried about for checkingwhich is better for stiffness and strength as a floor core material?Continue
Started this discussion. Last reply by Shawn Baker 9 hours ago.
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Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Let's get this build started!!I decided to go with 1/2" DF floor, 3/8" DF decks and 6mm Hydrotek sides. Upper sides will be bright finished. 6 or 10oz plain glass on the sides, decks, and bulkheads. Floor will get…"
Shawn Baker replied to Lucas Rietmann's discussion Grand Canyon Dory Question
"Lucas, I talked to Marshall Nichols who bought Brad Dimock's "Bears Ears".Marshall had a decked aluminum McKenzie dory on the Grand a year ago. He said it was a really wet ride--the more vertical sides and stem get pushed around…"
Mike Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Yet another trick to bending the bottom is to attach it at the bow with the rear supported in the air with ropes or something. Then you have 16 or so feet of bottom to use as weight as you lower it down."
Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"That's awesome David. I'll bet it also helps keep the curve of the rocker fair. It's so hard to bend the end of a board."
David Witton replied to Shawn Baker's discussion Fir vs Meranti dory floor
"One trick to bending the 1/2" bottom is to deliberately leave extra length at the stern. Start fastening midships and then forward to the bow. Now you can use clamps or weights on the overhang you've left at the stern to bring it tight to…"
Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"I had seen it mentioned elsewhere, but hadn't seen that post--or how to pull-cut the strips on a table saw. Thank you!"
Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Thanks Jason.No problem getting common materials--I can get both Hydrotek Meranti BS1088 and Roseburg doug fir marine ply ordered in common thicknesses.
Not worried about the cost of epoxy, I have about 8 gallons more than I need..but air bubbles…"
Jayson Hayes replied to Shawn Baker's discussion Fir vs Meranti dory floor
"I wouldn't laminate the two sheets of 1/4", you would be adding a lot of resin to do so costing you much more money that just buying the 1/2" ply and possibly having a delamination issue later on down the road. Thats alot of surface…"
Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Jason and Rick,
Now you're talking my language.I do plan on a heavy glass schedule, but as you noted Rick, the farther apart the face laminations, the stronger/stiffer the laminate.Weight difference from 3/8" to 1/2" will only be…"
Rick Newman replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Absolutely agree, the greater the distance between the laminations the greater the strength of the structure by the distance squared. In other words twice as thick is four times as strong.
Rick N"
Jayson Hayes replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Shawn, I would strongly recommend that you use 1/2" Fir rather than 3/8" for your bottom. You'll be happy you did, you really don't want to go light when it comes to the bottom and 3/8" could be a little problematic when it…"
Bennett Yarbrough replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Brad dimock put rubber chine caps on one of his dories. I remember seeing it on his blog."
Rick Newman replied to Shawn Baker's discussion Fir vs Meranti dory floor
"I used 17 ounce triaxial on both the inside and outside. On the inside I laminated it and then fastened down the floor. After I got the floor fastened down and screwed it on then I glassed it. I am only familiar with wooden chine caps such as found…"
Shawn Baker replied to Shawn Baker's discussion Fir vs Meranti dory floor
"Rick, I sincerely appreciate the detailed response.
Actually, I was just searching and my apologies, the question has been asked and answered with a few variations…"
Rick Newman replied to Shawn Baker's discussion Fir vs Meranti dory floor
"The fiberglass on the inside will contribute greatly to the resistance to bending. Dependent upon the weave, the type of resin and the number of layers of reinforcing glass you can dial in the stiffness and strength. I used 18 or was it 17 ounce…"
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- Lost count...wooden sea kayaks, skin on frame kayaks, whitewater rafts and kayaks, and building a whitewater dory
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