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Hanging Stringers

 
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Old 07-14-2015, 09:08 PM   #1
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Hanging Stringers


I have always viewed the stringer / deck connection as a weak link when building taller deck stairs. Im interested in finding out how other contractors hang their stringers.
I use a piece of 3/4 pt ply. It gets fastened to the back of the double flush beam with 3 1/4 nails and 4 headlocks. The stringer gets fastened to the ply with 4, 3 /2 nails per stringer, through the back.
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Old 07-14-2015, 09:36 PM   #2
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Re: Hanging Stringers


This opens up a rather large can of worms

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Old 07-14-2015, 10:32 PM   #3
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Re: Hanging Stringers


2 l70s on each side of the steel stringer. But then again I'm not normal.
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Old 07-14-2015, 10:40 PM   #4
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Re: Hanging Stringers


I use a sky crane
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Old 07-14-2015, 11:05 PM   #5
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Re: Hanging Stringers


Quote:
Originally Posted by JAH View Post
I have always viewed the stringer / deck connection as a weak link when building taller deck stairs. Im interested in finding out how other contractors hang their stringers.
I use a piece of 3/4 pt ply. It gets fastened to the back of the double flush beam with 3 1/4 nails and 4 headlocks. The stringer gets fastened to the ply with 4, 3 /2 nails per stringer, through the back.
How do you keep the ply from rotting?
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Old 07-14-2015, 11:06 PM   #6
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Re: Hanging Stringers


Quote:
Originally Posted by Californiadecks View Post
How do you keep the ply from rotting?
Sorry I didn't take my time and read your post. I see you wrote PT.

Last edited by Calidecks; 07-14-2015 at 11:11 PM.
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Old 07-14-2015, 11:10 PM   #7
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Re: Hanging Stringers


I build a wall so to speak, that my stairs lean against. The weight isn't all on the deck side. It's also carried by the landing at the bottom.
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Old 07-15-2015, 07:51 AM   #8
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Re: Hanging Stringers


There is a few ways of doing it. one is you cut your stringer adding an extra tread, make a notch and go under it fastening to the joist. Using 2x12 stringer you maintaining more than 5" min requirement between the tread and the bottom of the stringer.

Another way is to add blocking to the joist or extend a 4x4 post and add 2x to provide solid back support for the stringer.

Here is something to give you an idea.
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Old 07-15-2015, 08:21 AM   #9
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Re: Hanging Stringers


I found extending the 4x4 below works best
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Old 07-15-2015, 03:54 PM   #10
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Re: Hanging Stringers


Quote:
Originally Posted by greg24k View Post
There is a few ways of doing it. one is you cut your stringer adding an extra tread, make a notch and go under it fastening to the joist. Using 2x12 stringer you maintaining more than 5" min requirement between the tread and the bottom of the stringer.

Another way is to add blocking to the joist or extend a 4x4 post and add 2x to provide solid back support for the stringer.

Here is something to give you an idea.
As a quick fyi, can only do this if you're deck framing is less than 2x10s...the inside mount I'm talking about
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Old 07-15-2015, 04:23 PM   #11
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Re: Hanging Stringers


Quote:
Originally Posted by killerdecks View Post
I use a sky crane
You mean a sky Hook?
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Old 07-15-2015, 04:30 PM   #12
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Re: Hanging Stringers


Quote:
Originally Posted by greg24k View Post
There is a few ways of doing it. one is you cut your stringer adding an extra tread, make a notch and go under it fastening to the joist. Using 2x12 stringer you maintaining more than 5" min requirement between the tread and the bottom of the stringer.

Another way is to add blocking to the joist or extend a 4x4 post and add 2x to provide solid back support for the stringer.

Here is something to give you an idea.
Quote:
Originally Posted by festerized View Post
I found extending the 4x4 below works best
Im going to give this technique a try with the next deck. Most of the decks you see around here the stringers are held in place with pieces of vertical 5/4 x 6 decking.

Anyone use Simpson LSC adjustable stair stringer connector?
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Old 07-15-2015, 04:52 PM   #13
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Re: Hanging Stringers


Quote:
Originally Posted by festerized View Post
I found extending the 4x4 below works best
that's how I do it.
a few ledger locks and stair hanger..
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Old 07-15-2015, 04:58 PM   #14
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Re: Hanging Stringers


Quote:
Originally Posted by JAH View Post
You mean a sky Hook?
sky something or other
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Old 07-15-2015, 07:10 PM   #15
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Re: Hanging Stringers




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Old 07-15-2015, 08:07 PM   #16
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Re: Hanging Stringers


Quote:
Originally Posted by festerized View Post
I found extending the 4x4 below works best
Same here
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Old 07-16-2015, 12:11 AM   #17
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Re: Hanging Stringers


This because inspectors ban me use 3/4 plywood and use metal strips. Virtually do not know other way. If would this be banned to I would give up at stairs.
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Old 07-16-2015, 12:20 AM   #18
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Re: Hanging Stringers


Quote:
Originally Posted by tipitop View Post
This because inspectors ban me use 3/4 plywood and use metal strips. Virtually do not know other way. If would this be banned to I would give up at stairs.
Translated:

The inspector prohibits the use of 3/4 ply and metal straps. And if he decided to fail this, I'd give up on building stairs, because I don't know another way.
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Old 07-16-2015, 04:34 AM   #19
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Re: Hanging Stringers


Can't use pylwood on interior stringer system ???????? Something is not right there.

As far as exterior goes..............Festerized gets my vote.
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Last edited by Big Shoe; 07-16-2015 at 04:38 AM.
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Old 07-16-2015, 04:50 AM   #20
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Re: Hanging Stringers


Far as outside work goes, plywood of any kind ,pt or not, will react the same way exposed to the weather. It will delam .

Marine plywood is not meant to be exposed to the weather it will come apart the same as any other plywood. Marine plywood is made for strength/sheer , no knots in the plys.

John www.deckmastersllc.com

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