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Old 02-19-2010, 10:07 PM   #31
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2 Door Garage to a 1 Door Garage?


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Originally Posted by Scuba_Dave View Post
Interesting
Now I see why you want to raise the joists up
You have 22.5' width between the walls
A 16' door would leave you 3' 3" on either side of the door
Is there a Lumber Co nearby that can size this beam ?
Yes, I live in the city so there are plenty of options for lumber. I've never sized a beam before. How exactly does the process work? Since it's a pyramidal roof though, raising the joists won't be an issue right? Thanks!

JP

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Old 02-19-2010, 10:21 PM   #32
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2 Door Garage to a 1 Door Garage?


I basically went with my plans to have them calc the loads & beam sizes
Mine was a little different since its 3 stories

A garage just a sketch would probably work & tell them how the roof lands
Are you going to park 2 cars in the garage ?
If not I might consider a smaller door...14' wide maybe
--you could still get 2 cars in
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Old 02-19-2010, 10:24 PM   #33
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2 Door Garage to a 1 Door Garage?


Your roof is a HIP roof! my garage is the same! You won't have gables on a hip roof. Only roof's with two side's will have a gable!

In my garage, what you are referring to as joists, I call them collar ties! In my garage they rest on top of the wall, and are nailed to the side of the rafters.

For the span that you are planning, you still have a load problem, although not like it would be, with a side gable roof!
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Old 02-19-2010, 10:29 PM   #34
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2 Door Garage to a 1 Door Garage?


Quote:
Originally Posted by Scuba_Dave View Post
I basically went with my plans to have them calc the loads & beam sizes
Mine was a little different since its 3 stories

A garage just a sketch would probably work & tell them how the roof lands
Are you going to park 2 cars in the garage ?
If not I might consider a smaller door...14' wide maybe
--you could still get 2 cars in
Ok cool. I can definitely sketch. You've probably been able to figure that out considering the amount of graphics I have posted . I do want to be able to park 2 cars in the garage. I like the idea of a 16' door. It will make it feel more open when the door is up. Are you sure the beam should be wood? People have been saying that it should be metal because I have a hipped roof.

JP
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Old 02-19-2010, 10:31 PM   #35
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2 Door Garage to a 1 Door Garage?


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Originally Posted by Wildie View Post
Your roof is a HIP roof! my garage is the same! You won't have gables on a hip roof. Only roof's with two side's will have a gable!

In my garage, what you are referring to as joists, I call them collar ties! In my garage they rest on top of the wall, and are nailed to the side of the rafters.

For the span that you are planning, you still have a load problem, although not like it would be, with a side gable roof!

Yeah, you're joists (collar ties) are sitting on top of the top plate and connected to the rafters because that's how they're supposed to be. Mine however are not.
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Old 02-19-2010, 10:35 PM   #36
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2 Door Garage to a 1 Door Garage?


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Ok cool. I can definitely sketch. You've probably been able to figure that out considering the amount of graphics I have posted . I do want to be able to park 2 cars in the garage. I like the idea of a 16' door. It will make it feel more open when the door is up. Are you sure the beam should be wood? People have been saying that it should be metal because I have a hipped roof.

JP
All of my beams are wood (LVL)...spanning approx the same distance & with greater loads
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Old 02-19-2010, 10:56 PM   #37
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2 Door Garage to a 1 Door Garage?


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All of my beams are wood (LVL)...spanning approx the same distance & with greater loads
I just figured out what LVL lumber is. LOL. So for a 20'x20' garage with a 22.5" span and a hipped roof, an LVL beam and not metal would be ok?
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Old 02-20-2010, 12:12 AM   #38
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2 Door Garage to a 1 Door Garage?


Yes, I would go with a 16' door - for resale value you want to be able to properly park two cars in there. The structural and door changes you are contemplating are very worthwhile to do, value-wise - IMHO.
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Old 02-20-2010, 07:11 AM   #39
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2 Door Garage to a 1 Door Garage?


if you have a 20' wide room the space wall to wall on inside is the span 22.5" is not the span
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Old 02-20-2010, 08:25 AM   #40
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2 Door Garage to a 1 Door Garage?


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if you have a 20' wide room the space wall to wall on inside is the span 22.5" is not the span
Ok I'm confused. So you're telling me that the span is from the inside of a stud on one wall to the inside of a stud on the opposite wall? Scuba correct me if I'm wrong, but I thought the span was the inner edge distance between 2 studs on the same wall.

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Old 02-20-2010, 08:28 AM   #41
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2 Door Garage to a 1 Door Garage?


that is stud spacing not span. span is the distance your ceiling joist go from one wall to the next
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Old 02-20-2010, 08:32 AM   #42
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2 Door Garage to a 1 Door Garage?


Before we were talking about ceiling joist span
That IS the distance between inside edges of the wall studs
BUT - on OPPOSITE walls
Its the distance the ceiling joist will SPAN
but it excludes the depth of the stud

Example:
A 20' wide garage -measured on the outside...may only have a 19' 4" span
7" for the 2 wall studs, 1" for external sheathing
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Old 02-20-2010, 08:41 AM   #43
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2 Door Garage to a 1 Door Garage?


Quote:
Originally Posted by Scuba_Dave View Post
Before we were talking about ceiling joist span
That IS the distance between inside edges of the wall studs
BUT - on OPPOSITE walls
Its the distance the ceiling joist will SPAN
but it excludes the depth of the stud

Example:
A 20' wide garage -measured on the outside...may only have a 19' 4" span
7" for the 2 wall studs, 1" for external sheathing
Ok I see. Thanks so much!

JP
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Old 02-20-2010, 12:56 PM   #44
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2 Door Garage to a 1 Door Garage?


http://www.parr.com/PDFs/LP%20LVL%201.9E.pdf

You need a permit.......

Be safe, Gary

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