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Old 08-23-2009, 07:52 PM   #16
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On page 67, here: http://www.awc.org/pdf/WSDD/C2B.pdf For an 8' span, it depends on the Fiber Bending stress the wood species is rated at. Spruce, pine, cedar,and fir are at--1000 fb for a #2 board. Hem-fir is 1150 fb. Read the rating on the wood you buy that is pressure treated, compare to the table for the maximum span, taking the load into consideration by: Figure 40# load (floor live) PLUS the local snow load (ask Building Department) multiplied by 1/2 the span 4' (?) times the span. e.g.on page 67, left column, a 3x6 (2-2x6's)--- under column 1100 fb (rating of the species wood) will carry 1155# load over an 8' span.

Span is 8' x 40# per square foot load, equals 320# x 4' joists (1/2 joist span) = 1280# needed (without any snow load)
Next line down, 2-2x8's at 1100 fb, will carry 1204#
" " " , 4x6 " " , " " 1617# Beyond what is needed.

Find your local snow load, add it to the first number before any math to see what is required to safely carry the load. Be safe, G

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Old 10-01-2009, 04:18 PM   #17
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ok guys, it took over a month but the deck repairs are done. the rotten 2x8 beam was replaced to the next 4x4,and also the 2x4 it sits on. replaced 6 floor joists too. (now THAT was a ***** with only me and my assistant doing the work...my assistant also doubles as my wife...pre-treated 2x8 soaked is heavy as heck!) the ballusters are ripped from the 4x4's I had to use to support everything...they don't look all that straight in the pic but trust me, they are! now, to finish things up before proceeding to the next project which is my front concrete slab. (a total disgrace!)

tnx,
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Old 10-04-2009, 01:00 PM   #18
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Old 10-04-2009, 01:07 PM   #19
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I was waiting for pics
Funny...when I 1st looked & couldn't figure out the "stairs" on the left

I'm finally building my attic stairs today
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Old 10-06-2009, 06:21 PM   #20
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Must be pretty dry up there for a cedar deck to last 30 years. Here it would have been a canidate for a total re-build many years ago.
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Old 10-07-2009, 11:46 AM   #21
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Quote:
Originally Posted by deckman22 View Post
Must be pretty dry up there for a cedar deck to last 30 years. Here it would have been a canidate for a total re-build many years ago.
you must mean the decking itself, the rest is plain old fir. didn't find any rot except that beam and the joist that sits on the outside. that's where the weather hits. plenty of dryness though. that's why I replaced all those joists, they were dry and cracked badly. (to say nothing about them being a good 3/4" short since the builder evidently cut everything in advance and they didn't fit 'cause he missed on the post holders)

tnx,
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Old 01-02-2010, 02:59 PM   #22
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so,I'll bet you guys been wondering where I've been since Oct. well,just as I finished my deck repairs with all it's related struggles, my back went out in a BIG way. COULDN'T EVEN WALK! after going to doctors, having an mri, they determined that I've aggravated something that's been going on for awhile,something called "stenosis" in my spine with a good measure of arthritis to boot. I've had one shot in the spine and probably more to come. I'm about 20-30 % back to norrmal. good thing I've got a good assistant (my wife ) to help out with future projects!
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Old 01-03-2010, 03:29 PM   #23
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Sorry to hear that the deck wasn't the only thing broken, but good to hear you are the road to recovery although it won't be fun starting at 20-30% of normal. Still it's much better than starting again from the MRI .
Keep up your spirits and Good Fortune.
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Old 01-21-2010, 02:58 PM   #24
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OK, my back's feeling better (after 2 shots) now if spring would get here so I can continue with my projects. I won't damage my back again hopefully and besides, my assistant (my wife) will be doing the work as I "bark" commands at her from a comfortable position. (maybe with a beer in hand!)
the next project is to replace the section of concrete that the 4x4 post in the corner I was working on sits on. (yes,there's a postholder in the concrete) the concrete has deteriorated so that the postholder is loose. tried to fix it with some "redy-mix" but that repair was lousy. (the kind of repair this guy I used to work with would do but that's another story!) thinking of getting my friend who does construction work to lend me a concrete saw so I can cut out a square of the concrete lower deck. (somebody else will work the saw,probably not my 120 lb. assistant but a large friend who will also break up the concrete with a sledge-hammer) the question is,should I just pour concrete in there or use some reinforcing too? (maybe rebar?) and how big should the square be?

tnx,

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