using 2x4 for deck joists

Joist Layout for Stronger Decks | Professional Deck Builder ...20 Mar 2013 ... Check with the decking manufacturer for this information. So, what joist size and spacing should you use? 2x10 joists at 24-inch centers. for our "base case," let's look first at what we need to meet residential code. Both the 2009 IRC and the DCA6-09 allow #2 southern pine 2x10s to span 13 feet 1 inch at 24 inches on-center at a design load of 50 psf. That means these joists can span the 12-foot depth of the deck, and the beam can be located at the perimeter.

Can I build a deck from reclaimed 2x4's? - Home Improvement Stack ...I'd even have a hunch that a 70 year old 2x4 might carry as much of a load if not more than a modern cheap pine 2x6. All that said, as you state, it's not treated lumber. Unless it is cedar, you likely won't get much life out of it as a decking material--unless you have plans to refinish it each and every year. The 2x4 also wouldn't make for a sufficient floor joist, so you'd have to use new structural lumber for that anyways. If it's old lumber, I'd consider saving it for another ...

How To Build A Deck, Part 4: Building A Deck Frame And Framing ...3 Jan 2013 ... No sealant on the joists? That is asking for wood rot in 10 years or less. I use a stain sealant and Vycor deck flashing to double the protection from wood rot later down the road. I had to tear down my first deck due to wood rot and applied this technique. I noticed that the floor boards being put in had splits in the wood when the screws were installed too. This also will contribute to wood rot. I use composite flooring now so rotting is eliminated. If you do the job, do it right ...

Estimate and Build a Deck in 7 easy steps | Dengarden5 Apr 2016 ... We will need metal joist hangers for the ledger. We could make our own joist hanger by screwing a 2x4 along the bottom of the ledger and cutting a notch in each joist to fit. But, metal joist hangers will save time and are not expensive. Teflon screws are the best fasteners for the decking. I suggest using them to avoid nail pops and rust in the future. Fasten the decking with two screws at every joist. Use Teflon screws to also fasten the railing and the treads. We need ...

Building Your Deck - North American Retail Hardware AssociationdeckingIf you choose pressure-treated lumber, you'll have a choice between 5/4 x 6 decking (1x5-1/2 actual size) or 2" material (typically 2x4 through 2x8, all 1-1/2" thick). The size and species of the decking you choose will determine the spacing between your joists. ... The height of the ledger should be 1" below the bottom of the door plus the thickness of the decking, plus the depth of the joists if you plan to set the joists on the ledger and beams rather than using joist hangers.

2 x 4 for floating deck using Deck Block Possible? - DecksGo17 Mar 2013 ... But I would tell you that using 2x4s as joist is problematic. They are much weaker than 2x6s so you will have to have a much tighter joist spacing, certainly no more than 12" from center to center. Secondly you will have to have many, many deck blocks along the length of each 2x4. In fact you may have to have a block every 2-3' under each 2x4 to get rid of any bouncy feeling. Since it is a small deck it shouldn't be too bad. And I think it will be your best option given your ...

Floor Joist Spans for Home Building Projects | Today's HomeownerFind out the minimum size floor joists you need for building decks, sheds, or room additions for different types of wood on both 16" and 24" spacing. ... for example, if you double the thickness or number of joists in a fl

Decks.com. Deck Joist Sizing and Spacingfor conventional guard rail post installation, bolted to the side of the framing, larger framing will provide for more strength in the rails. for upper level decks 2x10 is recommended as the minimum size to use for strong guard post connections. 2x6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. Similar to guards, if stairs are to be hung from the side of an upper-level deck, 2x10 as a minimum is recommended, as it will exceed the ...

Wood Deck Construction Guide9. This document is not intended to preclude the use of other construction methods or materials not shown herein. deckING. decking shall be wood 2x4, 2x6, five quarter board, or Wood-Plastic Composite sizes per the manufacturer's specifications. Wood decking shall be attached as shown in Figure 1. decking should also be attached to the rim board with fasteners at 6 O.C.. Each wood decking member must rest on three joists minimum. Wood-Plastic Composite decking shall ...

Decking joist size & supports | DIY Doctor UK DIY ForumsThe problem I have is what size of joist I can use? I am restricted by the hight above ground I can go as the house door is just 27cm above ground level and there are airbricks 14cm above fround level. I do not want to cover the airbricks and so plan to put a joist just below these but it only leaves me enough space for a 10cm hight. The joists will be 4.2m long. Can I use 10cm joists (2x4's) as the instructions I have read recomend (2X6's). If I can use 2x4's what spacing ...

Two Decks, Many Lessons | Professional Deck Builder | Codes and ...1 Mar 2010 ... Too late I learned that 2x6 deck joists make it more complicated to meet the IRC requirement that guardrails be able to resist a concentrated lateral load of 200 pounds, which is accomplished by securely anchoring each guardrail post to at least one inboard joist. That seems to be true even if you use the latest guardrail-post connectors from Simpson Strong-Tie (800/999-5099, strongtie.com) or USP (800/328-5934, uspconnectors.com). As David Finkenbinder, branch ...

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