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-   -   Ground level deck - screws or bolts? (http://www.diychatroom.com/f19/ground-level-deck-screws-bolts-72238/)

rsmith0399 05-27-2010 06:59 PM

Ground level deck - screws or bolts?
 
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I am building a ground level deck to extend the size of my patio. 8' of the deck is over the old patio. 7.5' of the deck is over ground. I used 2x4s as sleepers that run the full length of the deck. The 2x4s set on the patio. Pillars were poured over the ground area and extend above the ground about 1.5". The 2x4s are doubled over each pillar and a 4x4 is sandwiched in between to use as a leveler. The doubled 2x4s are set on 12" centers.

None of the deck is touching the ground. The whole deck rides on the 4x4s, which are setting on roofing shingles so they do not contact the ground.

Each of the 2x4s are fastened to the 4x4s with 6 to 8 3" deck screws.

My question is (finally). Are the deck screws enough to support the deck? Or do I need to put a bolt through each 2x4/4x4?

Thanks!

rodu 01-10-2012 04:31 PM

since the deck is at ground level the screws would be enough, however, as a precaution you may want to remove the screws on every other 4x4 and replace with either lag bolts or bolts that go all the way thru.

woodworkbykirk 01-10-2012 07:35 PM

personally i would just use galvanized gun spikes.. 100 x faster and much much cheaper than 3" screws.. its sitting at grade. it cant go anywhere

titanoman 01-10-2012 07:55 PM

Um...I guess.
I don't believe I've ever seen anything like that before.

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abracaboom 01-10-2012 08:16 PM

Just the screws should do it.

You could have used continuous 4x4s and saved yourself from all those 2x4s, but hey.

kwikfishron 01-10-2012 09:08 PM

There's a waste of materials and labor.

titanoman 01-10-2012 09:22 PM

Quote:

Originally Posted by kwikfishron
There's a waste of materials and labor.

I'm serious. I've been around the block a few times and have never seen anything like that.
I can't help it, I keep going back and studying it more. What about that 45 action?

Sent from a Samsung Galaxy S2

abracaboom 01-11-2012 12:30 AM

There's more to a job than time and materials. I'm sure that Mr. Smith derived great pleasure from building it, and if he 45d a corner, there must be a good reason for that (fancy board design).

I'll bet those 2x4s are dead level along the whole plane!

titanoman 01-11-2012 05:59 AM

Quote:

Originally Posted by abracaboom
There's more to a job than time and materials. I'm sure that Mr. Smith derived great pleasure from building it, and if he 45d a corner, there must be a good reason for that (fancy board design).

I'll bet those 2x4s are dead level along the whole plane!

I'll bet not. You can see the waves in it.

Sent from a Samsung Galaxy S2

robertcdf 01-11-2012 12:53 PM

Ummm... I'm also at a loss for words... Sometimes a deck is not the answer and a paver stone or concrete patio is the answer.


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