Framing Support For Inside Corner On L-Shaped Stairwell - Carpentry - DIY Chatroom Home Improvement Forum

 DIY Chatroom Home Improvement Forum Framing Support for Inside Corner on L-Shaped Stairwell
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01-23-2011, 12:56 AM   #1
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## Framing Support for Inside Corner on L-Shaped Stairwell

I am converting a straight run staircase into L Shape Platform. The inside corner of the L is picking up a double 2x10 Header (carring a single 2x10 Joist) and a double 2x10 Trimmer.

There is an existing internal partion below that I know I need to enhance to a post right below the inside corner to support the load.

I am seeking assistance for two things.
1. How to support the corner from below? I provided a diagram of the approach I was going to take of staggering the cuts and supporting with 3 2x4 post built into the partition. Maybe I am over thinking this.

2. How to fasten at the corner? Besides nailing the ends I was thinking of nailplates and angle fasteners. Again the overthinking statement above.

Thanks for the time.
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01-23-2011, 07:37 AM   #2
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Quote:
 Originally Posted by jsoares4 I am converting a straight run staircase into L Shape Platform. The inside corner of the L is picking up a double 2x10 Header (carring a single 2x10 Joist) and a double 2x10 Trimmer. There is an existing internal partion below that I know I need to enhance to a post right below the inside corner to support the load. I am seeking assistance for two things. 1. How to support the corner from below? I provided a diagram of the approach I was going to take of staggering the cuts and supporting with 3 2x4 post built into the partition. Maybe I am over thinking this. 2. How to fasten at the corner? Besides nailing the ends I was thinking of nailplates and angle fasteners. Again the overthinking statement above. Thanks for the time.
If you have a wall under your header there is nothing to worry about.

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 01-23-2011, 09:54 AM #3 Newbie   Join Date: Jan 2011 Posts: 3 Rewards Points: 10 Currently there is no wall under the double header. Since the original stair was a straight run, the current partition is unde rthe double trim. I am trying to avoid building a wall under the double header to allow more openness to the room below. Does the triple stud post described above fill the need?

01-23-2011, 03:25 PM   #4
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Quote:
 Originally Posted by jsoares4 Currently there is no wall under the double header. Since the original stair was a straight run, the current partition is unde rthe double trim. I am trying to avoid building a wall under the double header to allow more openness to the room below. Does the triple stud post described above fill the need?
I am a little thick sometimes, are you saying there is a wall under the trimmer and not the header? If so as long as there is support for that corner that is all that matters.
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 01-23-2011, 04:54 PM #5 Newbie   Join Date: Jan 2011 Posts: 3 Rewards Points: 10 Jim - Your politeness is greatly appreciated, but I'm sure my 2am drywall dusted drawings were not doing justice. The Double Header will be a new addition to the joist layout to support the L-shaped stairs. The wall in question is running under the original double trimmer. At the end of the wall, I was thinking of a triple stud post to support the weight of the double header and double joist, but cutting them in a way to help the members to provide some blocking for one another. Thats why I was staggering them. I uploaded a new image of the drawing detailing better the 3 stud post in the the wall on the bottom left and added a perspective as well. Attached Thumbnails
01-24-2011, 08:25 AM   #6
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Quote:
 Originally Posted by jsoares4 Jim - Your politeness is greatly appreciated, but I'm sure my 2am drywall dusted drawings were not doing justice. The Double Header will be a new addition to the joist layout to support the L-shaped stairs. The wall in question is running under the original double trimmer. At the end of the wall, I was thinking of a triple stud post to support the weight of the double header and double joist, but cutting them in a way to help the members to provide some blocking for one another. Thats why I was staggering them. I uploaded a new image of the drawing detailing better the 3 stud post in the the wall on the bottom left and added a perspective as well.
You shouldn't have any problems with the way you plan to do it.

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 The Following User Says Thank You to BigJim For This Useful Post: jsoares4 (01-26-2011)

 Tags framing , posts , stairs , stairwell , support

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