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Joined: Nov 2015
Posts: 523
Campfire Regular
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Campfire Regular
Joined: Nov 2015
Posts: 523 |
Go to a local truss builder. They need to know the roof pitch, snow load, etc to get you the appropriate beam. They’ll put the info into the computer and spit out the correct info. Redneck engineering is a quick way to get killed when the roof collapses. I put a 12’ double slider in my house. I think I remember it was a 5.5 x 12 x 14’ and only had a 1/4” deflection on a 4/12 pitch roof. This. Many builder supply centers also have someone trained to do this on a computer. It will be made for allowable building stresses and deflections. Might have to screw more than one laminated board together but they will walk you thru that too. I just ran a ridge beam 26 feet in a vaulted ceiling. That sumbitch prolly weighed 400 pounds or more. No way around the weight when you span that long.
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Joined: Jan 2010
Posts: 23,530
Campfire Ranger
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OP
Campfire Ranger
Joined: Jan 2010
Posts: 23,530 |
Go to a local truss builder. They need to know the roof pitch, snow load, etc to get you the appropriate beam. They’ll put the info into the computer and spit out the correct info. Redneck engineering is a quick way to get killed when the roof collapses. I put a 12’ double slider in my house. I think I remember it was a 5.5 x 12 x 14’ and only had a 1/4” deflection on a 4/12 pitch roof. I have a friend in the business at Lumber 84. I'll give him a call this week and see what he says
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Jan 2010
Posts: 23,530
Campfire Ranger
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OP
Campfire Ranger
Joined: Jan 2010
Posts: 23,530 |
Somebody needs to get a clue on construction..... thats what I'm trying to do
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Sep 2011
Posts: 60,649
Campfire Kahuna
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Campfire Kahuna
Joined: Sep 2011
Posts: 60,649 |
One thing about advice on the 'fire, you will always get some. Useful?, if you know what to believe.
These premises insured by a Sheltie in Training ,--- and Cooey.o
"May the Good Lord take a likin' to you"
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Joined: Feb 2010
Posts: 16,063
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 16,063 |
Somebody needs to get a clue on construction..... Very helpful.....NOT!
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Joined: Nov 2015
Posts: 5,590
Campfire Tracker
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Campfire Tracker
Joined: Nov 2015
Posts: 5,590 |
Beam depth is your friend when making long spans. The picture you posted would need a post underneath! You can block under it and use restraining ( tension ) rods, These take heavy metal mounts at the ends, and need turn buckles lift the beam! And you need two rods per beam.
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Joined: Jan 2010
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Campfire Ranger
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Campfire Ranger
Joined: Jan 2010
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I think I'm on the right path with the suggestions earlier. I've been working out how to do it with the gluelam
Last edited by KFWA; 08/18/19.
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Nov 2015
Posts: 5,590
Campfire Tracker
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Campfire Tracker
Joined: Nov 2015
Posts: 5,590 |
All glue lam's are crownded, just make sure the crown is up!
Last edited by Heym06; 08/18/19.
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Joined: Nov 2015
Posts: 523
Campfire Regular
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Campfire Regular
Joined: Nov 2015
Posts: 523 |
You don’t have to be smart enough to know everything. Just smart enough to know where to find the answer. Work with your local truss or builder’s supply center. Their service is free (at least around here it is) to properly size the materials. And they also are in tune with local building codes. And maybe you need a building permit??? I’m not saying to go get a permit. Heck I’ve done some low profile home construction that I know needs a permit but something this big might not go undetected by your municipality. And the only thing more embarrassing than getting caught without a permit is having to tear it down and starting all over again because it violates code.
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Joined: Mar 2006
Posts: 20,873
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,873 |
You need a Gluelam or an LVL.
Order the proper engineered length and width yo need. Yep
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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Joined: Dec 2013
Posts: 23,685
Campfire Ranger
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Campfire Ranger
Joined: Dec 2013
Posts: 23,685 |
I recently had a 20' clear span garage door header with roof load only, 24' width. Our code is based on 40psf live load/ 10psf dead load. It required a 3 ply 16" LVL. Sounds like your beam will be exposed go the elements so I'd use a pressure treated glulam.
As stated above, most glulams have camber built in so make sure it's set appropriately. Also, in my area, there's a lot of design requirements to deal with uplift, especially when it's an open sided structure like yours. How its fastened to the supporting posts and how they're fastened to the footing can be just as important as the downforce.
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Joined: Jan 2010
Posts: 23,530
Campfire Ranger
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Campfire Ranger
Joined: Jan 2010
Posts: 23,530 |
ok, I'm gonna drop by and check in on the permit this week
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Jan 2010
Posts: 23,530
Campfire Ranger
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Campfire Ranger
Joined: Jan 2010
Posts: 23,530 |
wife got some video of me starting the project https://i.imgur.com/SZrnS1a.mp4
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Oct 2011
Posts: 58,967
Campfire Kahuna
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Campfire Kahuna
Joined: Oct 2011
Posts: 58,967 |
Lol, I'm glad to see your getting started and things are going well................Always good when no one dies........
Paul
"I'd rather see a sermon than hear a sermon".... D.A.D.
Trump Won!, Sandmann Won!, Rittenhouse Won!, Suck it Liberal Fuuktards.
molɔ̀ːn labé skýla
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Joined: Jan 2012
Posts: 26,430
Campfire Ranger
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Campfire Ranger
Joined: Jan 2012
Posts: 26,430 |
Used "I" beams for our 24' carport, bolted to 6X6's, been 15 years or so now with no issues.
Feels weird on the occasion I've been on the roof as it has a little bit of sway to it.
FJB & FJT
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Joined: Jan 2010
Posts: 23,530
Campfire Ranger
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OP
Campfire Ranger
Joined: Jan 2010
Posts: 23,530 |
I haven't had a chance to get down to 84 Lumber and talk to my friend, will probably have to wait until the weekend.
have you paid your dues, can you moan the blues, can you bend them guitar strings
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Joined: Aug 2010
Posts: 27,797
Campfire Ranger
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Campfire Ranger
Joined: Aug 2010
Posts: 27,797 |
Bet that hurt. Youre wasting money on glu lam on your application . Are you not setting a post every 8’ (10’ max) down the load side? If so, a double 2x10 would be fine here. A double 2x12 may be needed at your location though. To clear span the other way (width direction) , use manufactured roof trusses exactly how the drawing states  .c. Spacing , bracing ,and dont forget “hold downs”. Simpson strong tie makes some and they are required by code with roof trusses.
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Joined: Mar 2011
Posts: 8,203
Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2011
Posts: 8,203 |
DAMN,.... If your gonna be stupid you better be tough....
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Joined: Jan 2005
Posts: 12,359
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2005
Posts: 12,359 |
Yep,all good choices,lvl+duct lift. or steel I beam.
Not an engineer,but dont think plates+ bolts would last/hold up agree, here
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Joined: Jan 2005
Posts: 12,359
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2005
Posts: 12,359 |
Please tell me you are just joking, here man.!!!!
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