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Marine grade? or salt-treated plywood?
On Jul 20, 5:12*pm, "Happy" wrote:
"Tim" wrote in message ... I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! Tim a real good grade of plywood will work fine just give it a coat or 2 of epoxy resin to seal it, regardless of what you use and by all means if you go with treated use only stainless steel fasteners or the new treated wood will eat the fasteners in short order. I think you can use acetone to thin your first coat of epoxy so it will penatrate well. I'm sure thers info on this subject at Iboats I've been looking and studying. There's a guy on there that is re- doing a cuddy (I forget what make) which is identical (almost) to my Marquis. Come to think of it there's two makes on iboats in the restore dept that are so close to mine that you could swear they were punched out of the same place. Maybe they were. |
Marine grade? or salt-treated plywood?
Tim wrote:
I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! And slippery as hell. Are you going to carpet over it? Starboard isn't cheap but it's another option if you are using carpet. |
Marine grade? or salt-treated plywood?
John H wrote:
On Tue, 20 Jul 2010 12:10:34 -0700 (PDT), wrote: I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! Does the composite stuff come in sheets, or were you going to use boards, like this: http://tinyurl.com/29auaun I'm thinking of resurfacing my deck with that stuff. Expensive stuff though. It's durable but heavy, like Wayne said. |
Marine grade? or salt-treated plywood?
Jack wrote:
On Jul 20, 4:11 pm, John wrote: On Tue, 20 Jul 2010 12:10:34 -0700 (PDT), wrote: I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! Does the composite stuff come in sheets, or were you going to use boards, like this:http://tinyurl.com/29auaun I'm thinking of resurfacing my deck with that stuff. Expensive stuff though. -- John H The beach house we have access to in Hilton Head has that on the walkway to the dunes and on the deck that sits on the dunes at the beach. It's at least 15 years old, and still looks great. Only problem is that they have sagged in places between the joists holding them up, worse than a wooden board would have in the same situation. They seem to need a little more support? Might be worth talking to a local professional about that. It's likely Trex if it's that old and that is recycled plastic and wood fiber. It will certainly expand with the heat. The joists should be on 16" centers for the 5/4" boards. Closer (12") for commercial applications. |
Marine grade? or salt-treated plywood?
On Tue, 20 Jul 2010 19:18:27 -0400, Larry wrote:
It's likely Trex if it's that old and that is recycled plastic and wood fiber. It will certainly expand with the heat. The joists should be on 16" centers for the 5/4" boards. Closer (12") for commercial applications. Just my 2 cents worth but I'd be concerned about the weight. 3/4 inch plywood is much lighter, probably less than half. Decent plywood properly sealed with epoxy or good paint will last a long time. |
Marine grade? or salt-treated plywood?
On Jul 20, 6:14*pm, Larry wrote:
Tim wrote: I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! And slippery as hell. *Are you going to carpet over it? *Starboard isn't cheap but it's another option if you are using carpet. Lar, this stuff we used on the front porch has a simulated wood grain in the product, it really does look like wood. while wet and with bare feet you couldn't slip on it if you had to. |
Marine grade? or salt-treated plywood?
"Jack" wrote in message ... On Jul 20, 4:11 pm, John H wrote: On Tue, 20 Jul 2010 12:10:34 -0700 (PDT), Tim wrote: I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! Does the composite stuff come in sheets, or were you going to use boards, like this:http://tinyurl.com/29auaun I'm thinking of resurfacing my deck with that stuff. Expensive stuff though. -- John H The beach house we have access to in Hilton Head has that on the walkway to the dunes and on the deck that sits on the dunes at the beach. It's at least 15 years old, and still looks great. Only problem is that they have sagged in places between the joists holding them up, worse than a wooden board would have in the same situation. They seem to need a little more support? Might be worth talking to a local professional about that. Needs double the support. And depending on the batch, there are failures also. My buddy got replacement for his Trex last year. I am in the process for a new deck from Trex myself. They had a bad plasticizer for a few years. Unfortunately they replace the deck material but not the labor or the $330 were of deck screws required. |
Marine grade? or salt-treated plywood?
"Wayne.B" wrote in message ... On Tue, 20 Jul 2010 19:18:27 -0400, Larry wrote: It's likely Trex if it's that old and that is recycled plastic and wood fiber. It will certainly expand with the heat. The joists should be on 16" centers for the 5/4" boards. Closer (12") for commercial applications. Just my 2 cents worth but I'd be concerned about the weight. 3/4 inch plywood is much lighter, probably less than half. Decent plywood properly sealed with epoxy or good paint will last a long time. My deck of PT ply with Nautolex lasted 15 years. Was not marine as did not need the strength of no voids. I would use marine on a transom but not necessarily on the floor. I replaced my deck with ACX PT. 5/8th I think. But been a couple years. |
Marine grade? or salt-treated plywood?
"mmc" wrote in message ng.com... wrote in message ... On Tue, 20 Jul 2010 12:10:34 -0700 (PDT), Tim wrote: I was wondering abotu using salt-treated plywood on the Marquis deck. I'm not a feared of paying for marine grade, but Jimmy the carpenter told me that the newer salt treated woods are about as worthy as marine grade at a fraction of the cost. So, what's the opinion? I'm even wondering abotu using hybrid decking like you'd use on a porch. synthetic mylar etc mixed with wood. The stuff is weather resistant as all get out! I looked at everything when I decked my pontoon boat 20 years ago. We had a Wolman plant here at the time and they offered to pressure treat any plywood I would bring them but the guy who ran the plant said PT really only protects it from bugs. If water is your issue, save your money. I ended up with MDO plywood (one side) and it is still going strong after 20 years in salt water. That is basically 7 layer exterior grade plywood with one MDF layer. You would probably have the same luck with BC The main thing is to be sure everything is sealed before you put it in and seal all penetrations. The only bad spot I have found in my current rehab is from an unsealed penetration. Cut all of your pieces to size, paint them on all 6 sides with 2 coats then install them. Paint it again to cover the screws. Bristol Palin will be running for president before that plywood goes bad. I worked on a sailboat once that had a PT plywood sole and where it met, the aluminium mast was badly pitted. I thought it may have been caused by the cyanic acid? Nope, the copper is not friendly to aluminum in a wet inviroment. |
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