In fact, marine-grade plywood will work effectively for any plywood project. 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”. All our boat floor replacement plywood panels are manufactured by Inland Plywood and come with a limited lifetime warranty. Some of the philosophy about not using pressure-treated lumber on a pontoon probably came when they used arsenic as a preservative. If decay is a concern, it should be pressure-preservative treated to an appropriate standard. Strips are cut 2 inches wide. Pressure treating provides increased resistance to the elements, insects, fungus, rot and decay, so your projects look great year after year. Re: Pressure treated vs marine plywood I'm assuming this is for the sole, or floor and/or casting deck. Pressure treated plywood vs marine plywood. 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 grade has no natural decay resistance. Pressure treated plywood is junk. Shot a quick little video, we apologize for the poor quality of the video this will be corrected soon. 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. 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. Primary Sidebar. I don't think any plywood industries publish any specifications at all called "marine grade." It's saturated with water. Pressure treated plywood is common plywood that has been subjected to pressure treatment with chemicals to prevent the wood from decaying, or rotting . One of the nice things about plywood is the variety of options you can buy. This boat is just a fun project to build it more then if I will ever use it. Marine plywood can also be used in construction. Marine plywood is also stronger and more durable than regular plywood, which has only three layers. 7351 Highland St. Springfield, VA 22150 (703) 972-1947. 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. Most boat builders that still use plywood in the construction of the transom in a fiberglass boat use AC plywood. OSB vs Plywood comparison. Good Termites Resistant. 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. Okoume Plywood Quality, Size, and Thickness. The term “pressure-treated” is usually used to refer to plywood that has, in fact, been chemically soaked to improve its durability. Kiln-dried plywood wont shrink and is easier to handle and transport than wet-treated plywood, plus, its ready for staining right away. Marine grade has no special waterproofing in or on the wood. Get results you'll love without the wait. Roseburg 5/8 x 4 x 8 AB Sanded Marine Plywood. We also offer water putty for filling in any screw holes, gaps, or cracks created while installing plywood decking. Marine plywood is stronger, lighter, and easier to work with. This means if marine plywood will be exposed to moisture, it must be protected by a good water-resistant finish. Price. The downside to treated plywood is weight. Normal plywood is only four or five layers of wood and is bonded together by a basic epoxy. The plywood can even help to prevent rot in spas, bathrooms, and other interior areas where dampness is common. 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. Here is the start of a debate that's currently going on about using pressure-treated plywood. If pressure treated plywood is junk what would another choice be and still keep cost down. Costituita da un team di professionisti IT con pluriennale esperienza nel settore di riferimento, WMG S.r.l. 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. 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. Plywood panels are held together with wire stitching while the seams are “glued” with epoxy and fiberglass tape. plywood, is not ” Marine grade” plywood, and those designations do not make the two products arbitrarily interchangeable. 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. Q: What is marine plywood compared to regular plywood? fiberglass cloth on the deck side with a second coat of epoxy resin. It also depends if you are storing inside or outside. It is very soft and plywood made from Okoume are usually not pressure treated. The core can be made from pine, poplar, or hardwood to give it added strength. Standard pressure treated plywood is all I could find locally that day. shinintimes 7 shinintimes 7 7 302 posts; Location Gouldsboro Pa; Boat Name Bad Decision ll; Posted July 23, 2013. This material could last for years without paint or any type of protective coating. The only kind of plywood you should use as decking material is marine plywood. [wish2fish] posed an engineering question: I know we have discussed pressure-treated versus marine plywood many times. 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. I do have some hive parts built from Advantch and it's been great. General exterior plywood is intended for indoor or outdoor application where resistance to weather/water is required . The detailed description of veneer grades and Marine-grade plywood is contained in Voluntary Product Standard PS 1-95 Construction and Industrial Plywood. It is more expensive than Medium Density Fiberboard (MDF). Marine-grade plywood is a sturdier, higher-quality material made of Western Larch or Douglas-fir that is not treated with chemicals. Footer. Marine plywood or pressure treated. The Disadvantage of Marine Plywood 1. Plywood 13 LBS Coosa 9 LBS Break test. Some say it has a higher quaility veneer (fewer footballs), some say it is more resistant to rot. Coosa Bluewater 26, 1/2 inch thick Weight of a 2ft x 4ft sheet. At one time I tried to figure out what exactly it was, and discovered there is no standard. Again we were strolling in Home Depot and came across some pressure treated plywood. Marine Plywood having a good density Holds the screw and nail very well. 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. With cleats yes. 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