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Old 02-19-2010, 11:02 AM   #16
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2 Door Garage to a 1 Door Garage?


I converted two doors to one and used a steel beam for the header, as there was too little room for a wooden header. A metals yard fabricated the beam.

Suggest to think about putting in a door tall enough to ensure those tall SUV's and such can fit.

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Old 02-19-2010, 11:09 AM   #17
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2 Door Garage to a 1 Door Garage?


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I converted two doors to one and used a steel beam for the header, as there was too little room for a wooden header. A metals yard fabricated the beam.

Suggest to think about putting in a door tall enough to ensure those tall SUV's and such can fit.
Where/how did you mount the header?
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Old 02-19-2010, 12:17 PM   #18
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2 Door Garage to a 1 Door Garage?


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Originally Posted by vsheetz View Post
I converted two doors to one and used a steel beam for the header, as there was too little room for a wooden header. A metals yard fabricated the beam.

Suggest to think about putting in a door tall enough to ensure those tall SUV's and such can fit.
Mine had to be steel too to allow for trucks/SUV's. It's pretty cool that I can pull an F250 into my garage.
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Old 02-19-2010, 12:29 PM   #19
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2 Door Garage to a 1 Door Garage?


Myself I prefer LVL (wood) as I can install it
My middle LVL beams spanning 22' 6" were spec'd out at (3) 14"
I installed (3) 16"...supports great room wall above, attic wall above that, & 2 roof sections land on the attic wall

You need to have a beam sized based on the actual building & loads
22.5' span...how much wall on either side where the garage doors are ?
My garage is built up against the house...more stable

I would not try (2) 2x12's, get this sized & spec'd out properly

LVL beam:
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Old 02-19-2010, 01:16 PM   #20
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2 Door Garage to a 1 Door Garage?


Jp,
If I read right, your 20 x 20 detached garage with no second story should be fine with a double 2 x 12 header with a 1/2" x 11" steel flitch plate sandwiched in between, bolted through. If you are not familiar with the framing terms, you really should consider hiring a carpenter for the day to help you with your project. It shouldn't cost that much and will help to insure it gets done right and no one gets hurt. Also, check with your local building department and make sure you are both on the same page with what you are doing. I wouldn't go any wider than 16' with your door. Center it in the wall and you will have 2' on each side.
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Old 02-19-2010, 04:14 PM   #21
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2 Door Garage to a 1 Door Garage?


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Well, my current span is 22.5" and it wouldn't change if I hung a new header or? Not sure what my roof material is. My roof is 5/12 22.5 degree pitch. The rafters are 2x4s. What is a structural ridge? My storage expectations are minimal. I'm not planning on putting a lot up there.
Which way do the rafters run? Parallel to the door opening or perpendicular to it.
If the gable is above the door, the roof load will be different, than if the gable is over the adjacent wall.

Your buddy is mistaken, that a couple of 2X12's will be adequate for the span.
As previously mentioned it will require a engineered beam!
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Old 02-19-2010, 04:25 PM   #22
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2 Door Garage to a 1 Door Garage?


sDave nice to see someone plate top and bottom on the lvl
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Old 02-19-2010, 05:15 PM   #23
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2 Door Garage to a 1 Door Garage?


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Where/how did you mount the header?
Much like a wooden head except was an I beam - sat on jack studs and was bolted to the king studs.
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Old 02-19-2010, 05:16 PM   #24
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2 Door Garage to a 1 Door Garage?


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sDave nice to see someone plate top and bottom on the lvl
Ah..that wasn't a pic of my garage
But I actually did put top plates on all of mine
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Old 02-19-2010, 07:54 PM   #25
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2 Door Garage to a 1 Door Garage?


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Which way do the rafters run? Parallel to the door opening or perpendicular to it.
If the gable is above the door, the roof load will be different, than if the gable is over the adjacent wall.

Your buddy is mistaken, that a couple of 2X12's will be adequate for the span.
As previously mentioned it will require a engineered beam!
Hi Wildie. The rafters run both parallel and perpendicular. They run parallel on the left and right walls, and perpendicular at the garage door side and the opposite side (man door entrance). What is a gable?

JP
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Old 02-19-2010, 08:29 PM   #26
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2 Door Garage to a 1 Door Garage?


Are the rafters and joists landing on the wall with the doors? or on the side walls?

That will have a great impact on your header size requirements.

Go to a local lumber yard with all the information and a sketch. They will apply local codes to see what you need for a header.
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Old 02-19-2010, 09:11 PM   #27
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2 Door Garage to a 1 Door Garage?


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Hi Wildie. The rafters run both parallel and perpendicular. They run parallel on the left and right walls, and perpendicular at the garage door side and the opposite side (man door entrance). What is a gable?

JP
That means that the rafters will land onto the beam! The entire roof load will have to be supported by the beam.
Thats why the original builder chose two doors with a center column.
If you have snow in the winter, snow load will have to be considered, also!
A gable is the 'wall' section that closes in the space between the roof's. In your case, it is where the side walls extend up to the peak!
If your rafters rested on the side walls and the gable was above the garage door, the beam wouldn't need to be as strong!
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Old 02-19-2010, 09:14 PM   #28
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2 Door Garage to a 1 Door Garage?


How about a pic of the front door(s) framing from the inside & a pic of the roof from the outside ?
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Old 02-19-2010, 09:51 PM   #29
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2 Door Garage to a 1 Door Garage?


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How about a pic of the front door(s) framing from the inside & a pic of the roof from the outside ?
Ok Scuba. I took some pictures from the inside. The best I could do for now. I didn't take any of the roof from the outside because it's pretty self explanatory. It appears to be a "pyramidal" roof. A peak in the middle with 4 sides. The rafters run both parallel and perpendicular to the garage door(s). The left door is a barn door style and the right is a new standard door. What do you think? The rafter style shouldn't hinder my joist raising plan does it? Thanks!

JP
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2 Door Garage to a 1 Door Garage?-garage_doors1.jpg   2 Door Garage to a 1 Door Garage?-garage_doors2.jpg   2 Door Garage to a 1 Door Garage?-garage_doors3.jpg   2 Door Garage to a 1 Door Garage?-garage_doors4.jpg   2 Door Garage to a 1 Door Garage?-garage_doors5.jpg  

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Old 02-19-2010, 10:04 PM   #30
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2 Door Garage to a 1 Door Garage?


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 ?

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