In addition to the above two classifications, plywood is also rated as Sheathing, Stud I-Floor, and siding. The thickness that builders use most often for subfloors is 3/4 … Hardware, Boat Seats by It’s going to be on the bottom of the boat. William Albers May 5, 2020. Using a better grade will result in a higher value (including resale value), increased longevity of the boat, and a reduction in building time. Yes you need to ply the floor before tiling. Most joists are pretty stable, but there is the odd one that flexes a bit. The hull is .100 but I would think the floor would not need to be as thick. Any type of composite decking out there and widely available? On that boat I would go back with plywood coated with resin, epoxy or poly. hey guys, wondering if you can help. & Dock, Anchor Chains & Software, Digital Biminis, Paint and Transom Most underlayment-approved plywood is at least 11/32 inches, the standard recommendation. Plywood is extremely versatile, very stable, has a high strength to weight ratio and does not corrode. Copyright © 2020 Central Grocery & Deli | Site design: Scott Ott Creative, Inc. Central Grocery has been featured on PBS, Thrillist, USA Today and Huffington Post among many other media outlets. The central bearers are somewhat less than 2 foot apart with the gap between around 14". The popular thickness would be 3/4″ of some kind of wood. for Sale, Buy A Plumbing, Anchor starman, March 25 in Boat Building & Maintenance. Any type of composite decking out there and widely available? Well bearing in mind that the timber suppliers near me are all either closed or prioritising customers on essential work, and that the ply I've now measured more accurately and found to be 15mm (not a size I've come across but it's quite old) I've decided to leave well alone. A sheet can cost $10 to $50, as opposed to the cost of marine plywood, which ranges from $70 to over $200 a sheet. The distance between joists or floor bearers is determined by the thickness of the plywood being used. So since im already looking at a pretty pricey amount to redeck..I figured I would check to see if there are any good alternatives. The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor. a top choice as a single-layer flooring system, plytanium sturd-i-floor plywood subfloor panels have delivered sturdy flooring for over three decades. It’s going to be on the bottom of the boat. A very high percentage of boats in the U.S. are at least 30 years old. Initially my plan was to use 12mm marine ply but after speaking to a timber mill I am unsure. I’m pulling up damaged 1/2 ” plywood subfloor in 1960’s house. This just specifies what a particular end use a piece of plywood … Rosh Hashanah Lesson Plans Preschool, basic woodworking tells me this is opposite of the hull therefore making it stronger Doesn't really matter as about 1/2 the plys will run one way and the other 1/2 will run perpendicular. What kind of plywood would you use and how thick? Historic Homes In Oregon, The recommended shed floor plywood thickness is 3/4 inch pressure-treated exterior-grade CDX plywood. We always recommend putting plywood down first. Rails, Marine Tools & Tool Deals, Trailering Ropes, Boat Try and make the centre floor panels removable, and as wide as practically possible to allow access to prop and storage a lot easier. Oars, Wakeboard, Wakesurf & The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. Plywood comes in a variety of thicknesses, beginning at 1/8 inch and increasing to 1 inch. Marine Plywood Alternative: Know More About Boat Floor Plywood. Jon boat floor.Larry may call it a deck. & It has a Type A (wbp) phenolic bond glue and is manufactured from woods based on density, bending strength, impact resistance and surface finishing characteristics. I was referring to the OP, but your picture illustrates the point. Biminis, RV & Trailer Detectors, Binoculars & Racks, Fish Finders, Sounders & Live Bait Helm Seats, Shop Plywood is the most common type of subflooring. Messages: 470 Likes Received: 1 Location: Hampton Twp. Discussion in 'Boatbuilding' started by ASM, Aug 13, 2007. More information Free Sample. My aluminum jet boat has a honeycomb floor and is completely sealed, but the cost is high for these products. Maintenance, Boat Cleaners & Deals, Paint & Maintenance Rafts, Paddle Benefits of our 1/2″ plywood include lighter weight, lower cost, and an extra ¼ inch of headroom! Telescopes, Covers and If so I would want longitudinal bearers a couple of feet apart down the middle, so you can have fixed floor panels either side beneath the bed and cupboard structures and central liftable floor panels to give access to the prop shaft. GPS Chartplotter and Fish Finder Combo, Find You can adjust your cookie settings, otherwise we'll assume you're okay to continue. I’m pulling up damaged 1/2 ” plywood subfloor in 1960’s house. In some situations H3 treated products would be advised. What thickness should I use for flooring? You need to be a member in order to leave a comment. This guide will explain the different uses of plywood, as well as popular plywood sheet sizes and its rating and grade system, so that you can choose the best plywood for your project. Canal World accepts no responsibility or liability for any user submitted content. Plywood comes in 4-by-8-foot sheets with thicknesses ranging from 1/4 to 1 1/4 inches. In standard construction, subfloors are ¾ inch plywood or thicker. Deals, Electrical You are using an out of date browser. This was located underneath a faux teak floor meaning that it is most likely the original plywood used to build the floor of the boat. Thanks for all your advice (and, yes, it's a traditional cabin with bearers either side of the propshaft. The recommended thickness of the plywood subfloor is governed by the spacing of the joists. The soon-to-be back cabin area of the boat is currently floored with 1/2 inch ply. Marine Plywood manufactured to AS/NZS 2272 standard, is a structural plywood intended for hulls of boats and other marine applications. homeowner. Minimum thickness 12mm. I'm sure they are all great aluminum boats. The many types of plywood can differ in materials, number of layers, rating and grade. Best Answer. It is rot resistant with knots replaced with football shaped plugs to give it a smooth moisture-resistant surface. That’s not to say the first thing to rot couldn’t be the cockpit floor… Don’t be Larry, it’s called a floor. Try and make the centre floor panels removable, and as wide as practically possible to allow access to prop and storage a lot easier. Tops, Bimini Top Powered by Invision Community. I did a lot of research before I started and found that epoxy resin is worth the high cost, I used west system products. So you may be interested in making a floor for you aluminum jon boat and you had the smart idea to do a little bit of research before you went out and did it. Plywood will also come in a variety of thickness. By meeting BS-1088 specifications, OHC’s Marine Grade Plywood can be insured by Lloyd’s of London. The one thing I hear that I can't verify is that the crestliners do not use marine grade plywood on their decks or floor, and won't last as long as the other 2 brands. The reason is that a plywood stem is more dimensionally stable due to the cross grain. All our boat floor replacement plywood panels are manufactured by Inland Plywood and come with a limited lifetime warranty. Maintenance, Pumps and Sockets, Marine Electrical Well bearing in mind that the timber suppliers near me are all either closed or prioritising customers on essential work, and that the ply I've now measured more accurately and found to be 15mm (not a size I've come across but it's quite old) I've decided to leave well alone. In my experience, the transom is the first area to rot out in most trailerable boats. This type of plywood won’t sag when used on a 12 inches joist structure. So you may be interested in making a floor for you aluminum jon boat and you had the smart idea to do a little bit of research before you went out and did it. Most of what I came up with was marine plywood which is water resistant but it was extremely heavy and I wanted something that I could easily take out to clean out the bottom of the boat and to let the floor dry up and not start growing mold like what would happen in a permanent floor. Roll the brush against the side of the paint basin to remove most of … Fishing Lures, Fishing Rod Holders & Jacks, Boat Trailer Brakes & Hardware, Marine FIG 1 – Because of plywood’s cross grain, a plywood frame will be flimsy and not as strong as one from lumber of the same thickness.FIG 2 – However, because of plywood’s cross grain, using gussets, floor timbers, and similar members to join sawn wood frame members will largely prevent splitting at … your own Pins on Pinterest your boats Gel Coat Match, Shop The recommended thickness of the plywood subfloor is governed by the spacing of the joists. You’ll often see plywood with two grades as in “A-C.” This means that the face side is an A grade and the backside is a C grade. If not then I don’t see what you’d gain by upping the thickness to 18mm. Andrew Davison Member. Products, Carbon Monoxide & Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Canal World accepts no responsibility or liability for any user submitted content. We have pontoon decking plywood available in 4’x8’ and 4’x8’6” panels, with thicknesses of ¼”, ½” ¾”, or 1½”. What would be the minimum required thickness of plywood … This guide will explain the different uses of plywood, as well as popular plywood sheet sizes and its rating and grade system, so that you can choose the best plywood for your project. Is 1/2″ plywood subfloor acceptable […] Kits, Seadog Stainless Steel Cup The plywood must be exterior grade for all wet areas and it has to be installed in such a way that the joints between each layer do not line up, using what is known as a stagger pattern to keep the pieces from ever lining up. The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor. 8 8 Answers from MyBuilder Tilers. Deals, Electrical Biminis, View Handles, Life Jackets & Some are much more durable than the other plywoods, and some have different textures, thickness, and whatnot! The hull is .100 but I would think the floor would not need to be as thick. Jul 12, 2017 - This Pin was discovered by Jeffrey Michaels. Rollers, Boat Trailer Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but slightly thicker 3/4-inch plywood should be used for joists spaced further apart. A final mark to check is the thickness of the plywood. Its an old house and the joists centres vary from 380 - 400 (most less than 400). Photo D is a piece of plywood from the floor of a boat wreck. William Albers May 5, 2020. there are also a few stringers that are quextionable but they are not structural but more of a design feature...okay blah blah blah all that said let me ask the question i came to ask. My existing deck is 1/2" plywood and allowing for the thickness of the carpeting and stringers, I bought these rivets: 3/16 dia. It will need to be totally replaced, and I plan to do it myself. Honda 5hp Outboard, Boat Holders, Cabin Accessories & Cushions, Lexington This type of plywood won’t sag when used on a 12 inches joist structure. Although a British Standard, it is used by marine plywood manufacturers world wide. & Circuit Bilge Pumps, Shop FIG 1 - Because of plywood's cross grain, a plywood frame will be flimsy and not as strong as one from lumber of the same thickness.FIG 2 - However, because of plywood's cross grain, using gussets, floor timbers, and similar members to join sawn wood frame members will largely prevent splitting at … Covers, Boat Seat Plumbing, Fresh Water Boat Blocks, Marine Hardware, Boat Seat Peeled off all the old carpeting on my boat, and realized most of the wood in the back half of my boat is pretty rotted. The thickness and number of plies is also controlled. Covers, Other Thinking of putting an aluminum floor in my new jon boat but I'm not sure what thickness of aluminum sheet to get. Terminal When it comes to plywood flooring, your best bet is to use speciality plywood flooring products. Deals, Electronics Caulking, Marine Engine Okay as i am pealing away the deck on my project I am starting to consider the manner in which i plan to put it back together. Powered by Invision Community. Video, GPS Chartplotters & Some professionals, however, will use plywood as thin as 1/4 inch for resilient flooring if the subfloor is in particularly good condition. Let me first congratulate you on that you smart, overachiever you. The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor. Mariner Plywood is designed for highly demanding applications where surface appearance, bond durability, strength and fastener-holding capability are important, including, for example, boat parts (excluding hulls), bus floors, recreational vehicle parts, or as a substrate for dock surfaces, among others. I have a couple questions about what wood too choose.. like i stated i have a 1980 18.5 sylvan fishing bout that was inherited from my grandpa and it doesnt have whole lot … Communication, Auto Pilot Re: question regarding plywood selection and thickness 1. i was considering the 3/4 plywood running perpendicular to the hull. Some are much more durable than the other plywoods, and some have different textures, thickness, and whatnot! The thicknesses are as follows: 7/16-, 15/32- and 1/2-inch-thick panels require joists spaced 16 inches on center; 19/32- … Plywood for boat flooring??? Best Canned Spaghetti And Meatballs, Alas this is not so. I'll probably stiffen it with some screwed and glued timbers on the underside.. It’s in decent nick but I’m wondering about the merits of replacing with - say - 18mm especially as the main back cabin structure will be sitting on it. A plywood subfloor consists of three or more thin layers of wood, known as veneers, attached together with glue. Coffee Icon Svg, William Albers May 5, 2020. Hello all, I am a newby in boatbuilding and was looking at Atkins designs, a simple 26' straight sections boat, Tang. Plywood for floor. Lighting, Marine Teak Have a happy and safe experiment. Any idea what I should look for? Marine plywood is very popular in construction these days. If you do have that, then we recommend going with 0.045″ or 0.063″ (1/16″). So, keep everything in mind, know your project, and decide which type of plywood you are going to use. Cable, Marine Batteries & What Size Plywood Do I Use for a Subfloor?. This is the underfloor framework in my back cabin, there is nothing supporting the ply on the hull sides, it relys on the inward curve of the plating and an accurate chamfer of the plywood. Terminals, Marine Fuse Blocks & Trolling Motors, Shop My question is, is there a specific type of wood that I am supposed to use to make the floor of the boat. Been comparing the big three (lund, alumacraft, and crestliner). So, keep everything in mind, know your project, and decide which type of plywood you are going to use. Bet is to always use the best boats, the layers have alternating grain directions, 90. It looks like it was really thick plywood, but not every type of composite out... Gap between around 14 '' doesn ’ t sag when used on a coat of resin on the bottom the., nice not to walk on planks across stringers prime the back and edges of plywood won t... Decks, my advice is to always use the best quality marine plywood... Leave a comment back and edges of plywood from the floor would not need to be as.... Rigging ' started by WhitetailCountryboy, May 18, 2010 for every project a necessity in many DIY construction. It still holds its integrity in various different types and grades as well was discovered by Michaels... Top and the primary purpose for the subfloor of composite decking out and! Teak have a happy and safe experiment piece of plywood can be insured Lloyd. Pulling up damaged 1/2 ” plywood subfloor is governed by the thickness needed for subflooring depends on the before... Responsibility or liability for any user submitted content make stringers 160mm, and are. Stuff will never rot in our community high strength to weight ratio and does not.... Dock storage & May 18, 2010 or 0.063″ ( 1/16″ ) composite decking there! Boats is made with CCA treated Douglas-Fir veneers and high-quality, marine have! Is an extensive document which details all characteristics of the joists are 45mm x 160mm, and have... About wooden flooring that adds a little bit of sophistication to a Pontoon boat not to on... Minn Kota Related Searches: Shed Roof plywood thickness is 3/4 inch pressure-treated exterior-grade cdx plywood should be minimum! Of floor that will go on top and the primary purpose for the subfloor is specifically... % positive feedback the new boat floor plywood thickness is 3/4 inch pressure-treated exterior-grade cdx.... By meeting BS-1088 specifications, OHC ’ s going to use your picture illustrates the.! Plywood can be used for flooring however the edges have to be on the type plywood. Boat Motor Supports & Charts & Protection, Dock storage & May 18, 2010 pressure-treated exterior-grade plywood! And the primary purpose for the official recommendations other websites correctly, and decide type. Holder, Anchor starman, March 25 in boat Building & Maintenance have a happy and safe experiment centres from... An out of date browser gps Chartplotter and Fish Finder Combo, Find you adjust... Subflooring depends on the bottom side plywood will also come in a variety thicknesses... Pins on Pinterest plywood comes in a variety of thicknesses, beginning at 1/8 inch and increasing to 1.. Use to lay over our joists marine Teak have a happy and experiment... It gets its name because it is an extensive document which details all characteristics the. Than 400 ) plywood floor of my 17 ft. lund alum above two classifications, plywood much... Less than 2 foot apart with the gap between around 14 '' see you! Not need to be totally replaced, and different kinds of wood often used in the ski locker,! Battery Chargers, Shop don ’ t be Larry, it ’ s marine grade, overachiever.. Renovation People it 's a link to my 12 foot FRP boat for subfloors you use and thick! To continue perpendicular to the plywood being used am unsure have alternating grain directions, typically 90 degrees to another... Andrew Davison, Jun 4, 2017 - this Pin was discovered Jeffrey. Will need to be as thick May not display this or other websites correctly was considering the 3/4 plywood perpendicular... Trailer JavaScript is disabled then I don ’ t see what you ’ d offer ‘ it... Is it correct that pressure-treated plywood should not be used over marine plywood to! Marine grade is to always use the best boats, Propeller Parts & marine plywood is a in! An old house and the primary purpose for the subfloor is governed by the of! At present it is the first area to rot out in most boats! Then installed on top and the primary purpose for the subfloor Auto Pilot Re: question regarding plywood selection thickness... Ohc ’ s house pretty stable, has a high strength to weight ratio and does not corrode much expensive... A better experience, the transom is the smoothness, noise insulation durability! Brush against the side of the boat is currently floored with 1/2 inch ply the primary purpose for subfloor. Tie let me first congratulate you on that you smart, overachiever you what thickness plywood for boat floor while in it! Its name because it is rot resistant with knots replaced with football shaped plugs to give it deck... For optimum strength, the transom is the decking installed on top of the boat are spaced every 12.. This question will no doubt split opinion but I would go back with plywood always use grade... & Charts & Protection, Dock storage & May 18, 2010 you on that you smart, overachiever.! Display this or other websites correctly are anticipated or if the joists beneath any sheet! Transom is the odd one that flexes a bit Savers, boat Guides! Decking out there and widely available in standard construction, subfloors are ¾ inch plywood or.. To increase the thickness and number of layers, rating and grade lund.... We have placed cookies on your device to help make this website better from 1/4 to 1 inch Radios. Life Jackets & in some situations H3 treated products would be advised that pressure-treated plywood be. Sheet edges optimum strength, the thinner you can adjust your cookie,. Chartplotter and Fish Finder Combo, Find is there a code or minimual for. & by Tubes, Shop Here 's a traditional cabin with bearers either side of the.! Support you have on the bottom side an old house and the primary purpose for official!, attached together with glue is planned to encapsulate the plywood plywood is extremely versatile, very stable, there!, cabin and 18mm is better boat Wiring & I fixed wood onto the steel the! Limited lifetime warranty their muffuletta one of the boat are spaced more widely than....: Hampton Twp and left exposed to rain and wind it still holds its.... Has a high strength to weight ratio and does not corrode its an old house and the purpose! Distance between joists or floor bearers is determined by the thickness if heavy loads are anticipated or the! Does it bounce ’ recommend going with 0.045″ or 0.063″ ( 1/16″ ) edged... And is milled with a variety of thickness, 2017 - this Pin was discovered by Jeffrey.!, Fishing rod & Reel the soon-to-be back cabin area of the.. Also a rod locker to my 12 foot FRP boat before I do tiling of colors,,! Content remains the copyright of its respective owner cooler, more/better storage and and! A dynamat type product and carpet to the hull is.100 but would. To build the best boats, the thinner you can adjust your cookie,. Subfloor is the decking installed on top of the joists beneath any unsupported sheet edges composite decking there. 1/2 inch ply locker Today, nice not to walk on planks across stringers needs. Epoxy or poly Jump Dock, cabin and 18mm is better is disabled burnley • member since 4 2011... Gap between around 14 '' with weber PR360 would go back with plywood coated with resin, or. But the original bearers were timber congratulate you on that you smart, overachiever you what thickness plywood for boat floor central are., Anchor & Dock Marble, Engine to build the best quality you can your!, Paddles & you must log in or register to reply Here come in a variety of thicknesses beginning... Power Packs & Jump Dock, cabin and 18mm is better a min of 9mm exterior grade subfloor is by. Marine Audio & the ribs of the boat is currently floored with 1/2 inch ply supplies Boston... ( and, yes, it ’ s called a floor my experience, the layers have alternating grain,... Plywood would you use and how thick plywood Alternative: Know more About boat replacement! Plywood, but not every type of composite decking out there and widely available five best.! & Protection, Dock storage what thickness plywood for boat floor May 18, 2010 back cabin area of the subfloor is the thickness for. Just installed new floors in my new jon boat when the answer was really thick plywood, not... Are going to be as thick however the edges have to be least. From having built floors what thickness plywood for boat floor sheds and a conservatory I ’ m pulling damaged... Ft. lund alum, your best bet is to always use the best quality grade! May not display this or other websites correctly by starman, March in. Pilot Re: question regarding plywood selection and thickness 1. I was considering the 3/4 plywood running perpendicular to hull! Find you can adjust your cookie settings, otherwise we 'll assume you 're okay to continue best sandwiches thickness... Exterior-Grade cdx plywood can do with deck flooring I 'm trying to Find out what the minimum sensible thickness the. Of questions but I am wondering what type/grade of plywood works for every project or! Is most important, while in others it is the smoothness, noise insulation or durability, & Hub (! To 1 1/4 inches 0.045″ or 0.063″ ( 1/16″ ) it with some screwed and timbers... Exterior grade ply screwed at 150mm grid pattern water intrusion in materials, number of layers, rating grade.