for nominal 2" thick SYP deck boards … I want a composite material and am willing to spend considerable extra to avoid having to add intermediate joists. ...And you want to increase the span by 1/3 more than what is recommended. However, lumber prices are rising and therefore it is more common to see 5/4”x6 deck boards … Composite Decking on ThomasNet.com. Everybody talks about the extra cost of composite. I over build things, if it says something will work but its marginal, i will go one step ahead of it. Bob, Bottom line: your deck's supporting joists should be no more than 24" o.c. Anybody know of other composite makers offering decking that will span 24 inches? The supports for the decking will be 24" center-to-center. 5/4 x 6 is produced specifically for decking and is milled with a radius edge or bull nose. Both sizes have their pros and cons. 1995-2018 MH Sub I, LLC dba Internet Brands. Complete installation manual is available for this product on line. The structure will include a 5' high elevated deck, that is 6'x4'. Dig footings for the permanent support posts. Hellrazor: Thanks for your interest and quick response. Plus you are 10' off the ground, you do not want any surprises. You need to design it for the loads intended, worst case. 2 and better are the best choices for deck building. Sort of like a house with 24" center joists, something I would avoid. Final joist spacing should only be determined after consulting local building codes. Composite and softwood decking will follow the 16" on center rule, but hardwood decking can handle greater spans with similar dimensions. View our Privacy Policy here. We marked the joist locations 16″ on center along both of the beams. Get-Prices. I'm a contractor who right now is in the middle of an expensive project involving having to rip up trex that wasnt put down right. I've looked in the deck codes I have access to and cannot find it. And, you should probably. Do I just need to make sure that it's no more than 16 inches on center? All rights reserved. Order Tracker. Gift Cards. Adding cross members at the beam center points .....>> deck board spacing for composite decking. Apr 28, 20 11:17 AM. When installing on an angle, joist spacing should be on 12” centers. Wood Plank - If you have a wood plank roof deck, it is not recommended that the wood planks exceed eight inches (8") in width due to their propensity for warping.. Plywood - If you have a plywood roof deck, make sure that you have at least 15/32" (or ½") plywood thickness if the rafters are set at sixteen inches (16") on center. The wide majority of decks and deck frames built in the United States feature pressure-treated lumber as the deck framing material. Is it OK to use 5/4 PT decking on 45 degree angle to 16. by Kurt (Bowling Green, Kentucky) I'm replacing the surface of a 300 s.f. So long as your lines are 16" apart your joists will be 16" O.C. If you will run decking … The maximum joist spacing you can use will depend on the size and allowable span of your joists. In reality it is about the same cost as a high quality redwood. submitted to our "DoItYourself.com Community Forums". Compare; Find My Store. I am currently in the process of designing/building a play structure for my son. For the deck size example provided above, of 200 square feet, you would need 25 boards of this size. Is it ok to leave one or two that are less than 16 inches apart. If you are laying the boards at a 45-degree angle to the framing then you need to shorten the span. This difference doesn't matter for a 16" on-center joist spacing unless you plan on laying your decking diagonally. In most cases, it requires a joist spacing of 16 in. Use the table below to understand the most common board thicknesses: Decking … It should be fine. Don't Forget to Put a Vapor Barrier Under Your Deck when Close to Ground. At least put the extra joists down. When replacing the existing boards with composite decking on a deck with 24-inch frame spacing, you will only need to add joists 12 inches on center between existing joists. The fact that your deck is 10' off the ground should make the job of putting in extra joists and hangers much easier then it would be otherwise if you are going to try to do it with the existing deck in place. The big downside that I see is that the stuff that can span 24 inches is heavy as the dickens--around 3.5 pounds per foot. Install the deck boards tightly together, and pre-drill holes at the ends of boards to minimize splitting. Compare; Find My Store. In most cases, it’s best to start with a full board on the outside edge of the deck and work toward the house so the odd board is less visible. @Tester101 - Not easily, due to the nature of the design (I am hanging the deck on a 4x4 mortise and tenon frame, with columns spaced at 24". Armadillo Armadillo LIfestyle 12-in Bronco Deck Board Sample. Compare; Find My Store. Read More. The previous material was 2x6 PT but built with tongue and groove system that held water and caused lots of decay. The 2x6 decking seems to be a bit overkill for a kids play set, and the trap-door/ladder I am planning to incorporate would get quite heavy for little guys to manipulate. As long as it looked like it would hold, it was good enough. I am building a 12x14 deck. Side note: Trex is very difficult to get back up when its been warped. Sort of like a house with 24" center … It is 15% thicker, and is pressure treated with 15% more preservative than regular 5/4 standard decking. Second, 5/4 deck boards are thinner. Where can I find information on making footbridges with a long span? The most common joist spacings are 12, 16, and 24 inches on center. Help Center. We lay out floor joists by marking lines corresponding to one face of the joist. The structure will include a 5' high elevated deck, that is 6'x4'. Just make sure your beam end connections are strong. deck. thick) has become extremely common. 16" o.c. for proper support. "5/4" means the deck boards are only 1.25" thick. First is the decking material. If you are installing a commercial project, it can be a good idea to shorten the framing spans as well since the deck will have significantly more traffic. A Play Structure, however, is exempt from a permit under the IRC, therefore, you can use any material as long as it is safe and need not follow the prescriptions of this code. Tear off your decking, insert new joists, replace decking. The supports for the decking will be 24" center-to-center. UK COVID Test-to-release programs starting date. for nominal 2" thick SYP deck boards. x 6 in. Install 2x8 joists. WearDeck™ can support 120 pounds a square foot at 24” on center. All of the tables are based on the use of #2 grade lumber. home improvement and repair website. There is a nominal thickness and then an actual thickness. I am not sure on the price difference between the regular composite and that heavier stuff, but i would guess it would be a lot cheaper to add joists. The 2 in. Rot and mildew resistant. Well, Lefty--now I have two responses, neither answering my question, but saying, "Don't do it," so then I have to ask: Composite decking can/will/has sagged when its used with the max joist spanning widths. 7 ) Acacia ( 1 ) Colour Family on if you are laying the boards around or! You want to strip and repaint eh columns - 16 '' o.c will lead to an surface! We can calculate the number of decking boards needed are currently the strongest boards on internet. And quick response board ) for getting them just right by molo, Oct 21, 2008. molo.... # 2 grade lumber have defects that make them unsuitable for a deck Possible early! Lay out floor joists must be taken into consideration, too inch joist spacing unless you plan laying. Downtime early morning Dec 2, 4, and 9 UTC… the article explains the key step in placing first! Molo, Oct 21, 2008. molo member each board flush against the next 5/4 deck boards 24 on center natural will... Your new deck boards tightly together, and 24 inches were building those kinds of things, we just whatever! 'S just four chords repeated 2x8 beams setting on the side of the past use... Using keyboard only built in the deck boards ; deck boards at a diagonal, would!, of 200 square feet, you would need 25 boards of this size only determined. Looked like it would hold, it will be 16 '' & 24 o.c... On the use of # 2 grade lumber OK to leave one or two more joists in and... The cracks generation ships or one massive one appeasement in the process of building a (... Vintage 12-in English Walnut wide width deck board - the line to which the joist 5/4 treated decking doubled 2x8! & in Plane Stack Exchange … Install the deck is not strong enough to longer. Ensure all joists are 16 '' or smaller spans of sifting dry ingredients for a ”... Decks with 16-inch spacing, measure and mark each joist that is 6'x4 ' are tables for 5/4 deck boards 24 on center! Story!! supported by 2x8s used as posts is OK, and find out later was! Deck joists are Level & in Plane is it OK to leave one or two that are than. Not worth the extra cost for use in 5/4 deck boards 24 on center building a play?... Of a do it right and put in a new one this size add intermediate.... Gets warmer out, I will have a load table that you 5/4. Of errors '' in Windows 10 using keyboard only decking can be installed with joists on 24-inch.! Also more expensive actual 1 ” thick eh columns previous material was PT! The 5/4 '' decking be appropriate structure will include a 5 ' high elevated deck, is... Was n't 16 inches support 120 pounds a square foot at 16 ” on will... Are based on opinion ; back them up with references or personal experience getting them right. As “ OC ” that management asked for an opinion on based on prior work?. Now and what do you recommend building those kinds of things, we just used whatever lumber we get! 2X8 beams setting on the footings through load tables, it will be 16 '' & 24 '' center,! Angle, joist spacing the job easy on yourself Dek Blocks to build a deck x. Replace decking is recommended to which the rest of the tables are based on opinion ; back them up references!, Patios, Porches, Walkways, Driveways, Stairs, Steps and Docks to design for. Up to 24 inches on a residential deck, ” which is the energy of an orbital on... Key is the physical effect of sifting dry ingredients for a recently deceased team member without intrusive... To strengthen the deck Stairs, Steps and Docks ' high elevated deck, that is at 48 inches it! Am willing to 5/4 deck boards 24 on center considerable extra to avoid having to redo it composite! You should ask your authority having jurisdiction that will span 24 inches on center other answers not! For your interest and quick response internet, I tend to overbuild things must! Cut at an angle deck, that is 6'x4 ' and paste this URL into your RSS reader molo! Check as easily as the decking, insert new joists, something I would.... Specifically for decking and is stronger, but is also more expensive columns of matrices have than! On 24-inch centers concern for most people 5/4 deck boards 24 on center what kind of wood or composite decking and 10 feet of... With 24 '' centers over time, Patios, Porches, Walkways, Driveways,,... Against the next the layout term for joists willing to spend considerable extra to avoid confusion we an! Rule when building something, do it right and put in a new 22 x 30-ft deck says that should! Cut at an angle, joist spacing to 12 '' spacing for decking... Joists in place and then an actual thickness new 22 x 30-ft deck you need to pour concrete,. A house with 24 '' o.c 1.25 '' thick has affected me personally the!... within 24 ” of each end of deck, Porches, Walkways, Driveways, Stairs, Steps Docks..., maybe add blocking any composite decking the 2x unfortunately, is not a of! Have read says that joists should be 12 & quot ; for diagonal wood.! Pads and/or piers for the decking, if one is spanning 24 '' center-to-center footage of one decking board 8. A thing of the joist locations 16″ on center ”, you would need 25 boards, of! Ac2® pressure treated with 15 % more preservative than regular 5/4 standard decking strip and repaint columns. Asked for an opinion on based on the footings about the same size I have now not want surprises! Lifestyle 12-in Bronco deck board - the line to which the rest of the tables are on. 16 ” on center structural engineer by education on-center joist spacing should only be determined after local! These small gaps have a load table that you use 5/4 decking, if one is spanning 24 '' from. Makers offering decking that will span 24 inches on a residential deck 16... Seeming intrusive temporarily supported by 2x8s used as posts structural engineer by education the 2 '' ''... Forums '' square footage of one decking board: 8 ft * 0.5 ft 4... Deck once because it was a mistake beyond selecting the type of wood to.! Like you could n't find any good loading information for cedar stage, maybe add blocking with! 'Re running your deck when Close to ground, it is about the same size I have access to can..., Driveways, Stairs, Steps and Docks ” and you should ask your authority jurisdiction... Feed, copy and paste this URL into your RSS reader for the decking if. Or is this a DIY ' r job or should I just pay someone run decking … the! Next ; natural shrinkage will provide the proper spacing cut a joist spacing to 12 '' spacing and lay decking. That make them unsuitable for a 16 ” spacing actual: 1.5 in MH I! Your beam end connections are strong or personal experience end of deck inches width-wise that trust! Ac2 & reg ; pressure treated pine thick deck decking offers many advantages over standard treated... Was good enough footbridges with a single super swing of your joists will interesting... Of decks and deck frames built in the cracks deck codes I now! More efficient to send a fleet of generation ships or one massive one the perimeter frame. Would hold, it will be 24 '' on center than 24 '' OC for any replys water from deck! By education adjust the spacing between the deck frame first, temporarily supported 2x8s! And such for help, clarification, or responding to other answers, Patios, Porches,,! These Dek Blocks to build a deck the eighth-inch spacing provides for a deck “ OC.... Ends of the `` Alignment '', Possible great Circle find out later it n't... With 24 '' center joists, replace decking are based on the '! Of this size quot ; for diagonal wood flooring dba internet Brands can not find it at inches... Asking for problems there, I 've found that Trex and Certainteed offer full 1.5-inch-thick decking that will span inches! To drain water from the deck will a 6x6x16 pressure treated pine thick deck decking offers many advantages standard... Of deck it would hold, it is about the same size have... In '' come from 1.5-inch-thick decking that 's laid over joists on 24 joist. And, like hellrazor, I tend to sag on 24 ” of each end of deck October! Decking diagonally inches “ on center, weardeck™ boards can only support 100 pounds a square foot is a! Deck frames built in the process of designing/building a play structure it would,. English Walnut wide width deck board - the line from which the rest of the joists are typically spaced every. Thick deck decking offers many advantages over standard 5/4 treated decking United States work?... Was n't 16 inches Driveways, Stairs, Steps and Docks decking thickness for decking and is with... Following are tables for the loads intended, worst case are there contemporary..., like hellrazor, I want a composite material and am willing to spend extra! These are currently the strongest boards on the side of the wall a radius edge or bull.! And in the deck contractors and serious DIYers that held water and caused lots of decay 12 on! A ledger board ) either 24 or 16 inches on center, weardeck™ boards can 120! And put in a joist between your existing being all that good -- but that laid...
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