Re: marine grad vs CCA kiln dried pressure treated If the budget's strong go with marine grade plywood with two coats of epoxy resin on the underside and all edges and a layer of 6 oz. Pressure Treated Plywood 1/2 inch thick. Marine grade has no special waterproofing in or on the wood. Because of this, there is no need to care much about marine plywood. Shop 3/4 cat ps1-09 square structural marine grade douglas fir sanded plywood, application as 4 x 8 in the plywood section of Lowes.com The term “pressure-treated” is usually used to refer to plywood that has, in fact, been chemically soaked to improve its durability. I do have some hive parts built from Advantch and it's been great. Costituita da un team di professionisti IT con pluriennale esperienza nel settore di riferimento, WMG S.r.l. Inventory is sold and received continuously throughout the day; therefore, the quantity shown may not be available when you get to the store. If decay is a concern, it should be pressure-preservative treated to an appropriate standard. During installation, there was a framework of pressure treated 2x4's constructed around the perimeter of the house, attached to the house's sill plate at the top, and bolted to a poured concrete perimeter footer. Plywood 13 LBS Coosa 9 LBS Break test. Get results you'll love without the wait. This material could last for years without paint or any type of protective coating. All our boat floor replacement plywood panels are manufactured by Inland Plywood and come with a limited lifetime warranty. Good Termites Resistant. Marine plywood or pressure treated. Coosa Bluewater 26, 1/2 inch thick Weight of a 2ft x 4ft sheet. Normal plywood is only four or five layers of wood and is bonded together by a basic epoxy. Marine plywood is stronger, lighter, and easier to work with. Okoume wood is typically a high-quality product coming in 4’ x 8’ two-sided marine grade panels in thicknesses ranging from ⅛” to 1”. Kiln-dried plywood wont shrink and is easier to handle and transport than wet-treated plywood, plus, its ready for staining right away. It also depends if you are storing inside or outside. Our marine plywood for boats is made with CCA treated Douglas-Fir veneers and high-quality, marine grade glue. It's saturated with water. I've ordered a piece of "marine grade" plywood, I'll see how it does. Pressure treated plywood is junk. One of the nice things about plywood is the variety of options you can buy. Plywood panels are held together with wire stitching while the seams are “glued” with epoxy and fiberglass tape. My reasoning for pressure treated plywood was over marine plywood to keep cost down. Pressure-treated plywood, often called “Wolmanized” or P.T. 7351 Highland St. Springfield, VA 22150 (703) 972-1947. Price. Here is the start of a debate that's currently going on about using pressure-treated plywood. There are pressure treated grades, marine grades that can be used in water, fine hardwood options for finish work and cabinetry, pre-finished panels, or simple down and dirty 1/2″ CDX plywood. If pressure treated plywood is junk what would another choice be and still keep cost down. This boat is just a fun project to build it more then if I will ever use it. fiberglass cloth on the deck side with a second coat of epoxy resin. I originally did not want to deal with fiberglass cause I hate working with it. It has no chemicals added to enhance decay resistance, unless it has been subsequently pressure treated. This technique uses marine plywood and epoxy. shinintimes 7 shinintimes 7 7 302 posts; Location Gouldsboro Pa; Boat Name Bad Decision ll; Posted July 23, 2013. By shinintimes, July 23, 2013 in This Old Boat. For marine grade plywood, water-resistant glue is used which gives it very distinctive features; however, pressure-treated wood isn’t necessarily produced with water-resistance in mind. Pressure treated plywood vs marine plywood. The only kind of plywood you should use as decking material is marine plywood. Marine plywood is also stronger and more durable than regular plywood, which has only three layers. Primary Sidebar. Once everything is cured, the stitching is removed and the outside of the boat may then be treated. Marine Plywood having a good density Holds the screw and nail very well. I have not built any migratory lids without cleats though. I don't think any plywood industries publish any specifications at all called "marine grade." The better plywood is marine plywood. General exterior plywood is intended for indoor or outdoor application where resistance to weather/water is required . Marine-grade plywood is a sturdier, higher-quality material made of Western Larch or Douglas-fir that is not treated with chemicals. Here is my little test. Pressure-treated plywood is generally made out of softwood as this easily allows chemical treatment but also means water penetration between the different veneers is a consideration. This means if marine plywood will be exposed to moisture, it must be protected by a good water-resistant finish. Is it worth the extra cost for an outdoor project? For help selecting ACX vs marine grade plywood for your project, talk to the experts at Curtis Lumber, a wholesale lumber supplier. It is very soft and plywood made from Okoume are usually not pressure treated. While OSB (Oriented Strand Board) is generally cheaper than plywood, it is heavier and not as stiff as plywood and can result in soft squeaky floors under weight. Marine plywood is also a main component in stitch-and-glue boat building. It's not always cost effective to use it particularly if you just need a sheet or two and it has to be ordered. Marine grade won’t have voids and will be laminated with a resourcenol type glue, while pressure treated will have arsenic in it to protect it from bugs and rot to an extent; however, as the EPA got involved, most pressure treated wood won’t contain arsenic anymore. Chemicals are used to protect marine plywood from termites and ants. The core can be made from pine, poplar, or hardwood to give it added strength. plywood, is not ” Marine grade” plywood, and those designations do not make the two products arbitrarily interchangeable. The bottom line is that there is a plywood for almost every application. Pressure treated plywood is common plywood that has been subjected to pressure treatment with chemicals to prevent the wood from decaying, or rotting . The Disadvantage of Marine Plywood 1. 8. Again we were strolling in Home Depot and came across some pressure treated plywood. Marine plywood is not pressure-treated to resist decay, like pressure-treated lumber and plywood. The detailed description of veneer grades and Marine-grade plywood is contained in Voluntary Product Standard PS 1-95 Construction and Industrial Plywood. added "marine grade plywood" on page 4 I have thought about replacing the decking on a tritoon with coosa and wanted to see how the two compared. KNOWLEDGE CENTER Find more Wood Doctor at … We also offer water putty for filling in any screw holes, gaps, or cracks created while installing plywood decking. Pressure treating provides increased resistance to the elements, insects, fungus, rot and decay, so your projects look great year after year. Incorrect understanding: Some people incorrectly think film faced plywood as marine plywood . Strips are cut 2 inches wide. This type of wood’s thin sheets of veneer (plies) are usually set up perpendicularly as part of a process called cross-lamination that helps strengthen the material. Most boat builders that still use plywood in the construction of the transom in a fiberglass boat use AC plywood. Footer. Recommended Posts. It is more expensive than Medium Density Fiberboard (MDF). OSB vs Plywood comparison. Re: Pressure treated vs marine plywood I'm assuming this is for the sole, or floor and/or casting deck. Some say it has a higher quaility veneer (fewer footballs), some say it is more resistant to rot. Standard pressure treated plywood is all I could find locally that day. In fact, marine-grade plywood will work effectively for any plywood project. Plywood decking is a great choice as an alternative to regular boards as long as the right plywood is used. At one time I tried to figure out what exactly it was, and discovered there is no standard. While Marine grade plywood is technically “pressure-treated”, it is not soaked in or made with any special chemicals that increase its resistance to rot, mold, and moisture. Please Note: Prices, promotions, styles and availability may vary by store and online. Since it is an aluminum boat, if stored outside and you are concerned about longevity, I'd use marine grade plywood covered in epoxy. If … I don't think that "marine grade plywood" is a grade. The plywood can even help to prevent rot in spas, bathrooms, and other interior areas where dampness is common. coniuga le competenze di MAG Elettronica e CMS al fine di sviluppare e quindi ottenere la certificazione di un sistema VLT proprietario in compliance con la normativa di riferimento italiana; il Sistema di Gioco VLT WMG reVoLuTion. Reputable suppliers know the difference between marine-grade plywood and high grades of traditional pressure-treated plywood. Marine Grade Plywood is not treated with any chemicals to enhance its resistance to decay. They can work with you to make sure you get the right plywood product for your project. The ultimate 6 minute guide to buying the right material for your next project. Shot a quick little video, we apologize for the poor quality of the video this will be corrected soon. Marine plywood can also be used in construction. Roseburg 5/8 x 4 x 8 AB Sanded Marine Plywood. Q: What is marine plywood compared to regular plywood? With cleats yes. I have used it in some exposed exterior applications and I won't waste my money on anymore of it. Marine grade has no natural decay resistance. [wish2fish] posed an engineering question: I know we have discussed pressure-treated versus marine plywood many times. Okoume Plywood Quality, Size, and Thickness. Pressure-treated plywood: If you’re looking for a plywood that’s made to reject mold and mildew, pressure-treated plywood has been saturated with chemicals to keep it safe. The downside to treated plywood is weight. Marine plywood can be used for all the jobs which can be done by exterior plywood . Treated … Marine plywood has five or more layers that are bound together with waterproof adhesive, which allows it to bear heavier loads and repel moisture from its core. Some of the philosophy about not using pressure-treated lumber on a pontoon probably came when they used arsenic as a preservative.