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05-10-2012, 09:02 PM
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#1
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Member
Join Date: Jul 2009
Posts: 134
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Having difficulty getting plumb cut for shed roof rafters
Im trying to make the roof for a shed im building, but can't get the plumb for the roof rafters.
Im looking on the internet to make a roof rafter, but still confused. I got the pitch level of my roof. I scaled it to 12" x 4". I made a triangle template from it and got the angle for the plumb cut, but the plumb cut not working properly.
Im really stuck. Not sure what other methods their are too find plumb cuts to are simple for me to understand.
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05-10-2012, 09:06 PM
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#2
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Member
Join Date: Nov 2011
Location: Hartfield VA
Posts: 18,284
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Having difficulty getting plumb cut for shed roof rafters
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05-10-2012, 09:18 PM
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#3
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Member
Join Date: Jan 2012
Location: ohio
Posts: 1,004
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Having difficulty getting plumb cut for shed roof rafters
__________________
be careful my advice only comes from general knowledge i know about the 4 rules it takes to plumb and they are
1 poop needs to flow down hill. 2 hot on left cold on right
3 i get a pay check on Mondays 4 do not chew finger nails at or after work.
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05-10-2012, 10:17 PM
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#4
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Framing Contractor
Join Date: Apr 2006
Location: Caldwell, NJ
Posts: 1,755
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Having difficulty getting plumb cut for shed roof rafters
Quote:
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Originally Posted by humberguy
Im trying to make the roof for a shed im building, but can't get the plumb for the roof rafters.
Im looking on the internet to make a roof rafter, but still confused. I got the pitch level of my roof. I scaled it to 12" x 4". I made a triangle template from it and got the angle for the plumb cut, but the plumb cut not working properly.
Im really stuck. Not sure what other methods their are too find plumb cuts to are simple for me to understand.
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What is the span.......ridge size.....overhang and the size of the rafters?
__________________
Joe Carola
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The Following User Says Thank You to Joe Carola For This Useful Post:
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05-10-2012, 10:48 PM
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#5
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Member
Join Date: Apr 2012
Posts: 42
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Having difficulty getting plumb cut for shed roof rafters
What do you mean you cant get the plum? Is your ridge set? Do you know what a plum cut is? Do you know what a birds mouth is. How wide is your room. If your ridge is set how high is it off of the top plate? If you answer that we can set you on you way.
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05-11-2012, 01:01 PM
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#6
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Member
Join Date: Jul 2009
Posts: 134
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Having difficulty getting plumb cut for shed roof rafters
I got the run at 38.5 inches, the rise is 8.5 inches, I got the rafter length 39.5 inches(I'm remembering these numbers off the top of my head). I made the cut where the rafter sits on the beam. My problem is at the birdsmouth, the angle cut their isn't properly.
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05-11-2012, 01:58 PM
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#7
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Member
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 6,037
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Having difficulty getting plumb cut for shed roof rafters
those number give 12x2.6 pitch not a 12x4 pitch. That's your problem.
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Do not PM with questions that can be asked in a forum. I will not respond.
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05-11-2012, 05:20 PM
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#8
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Member
Join Date: Jul 2009
Posts: 134
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Having difficulty getting plumb cut for shed roof rafters
ill try that 12x2.6 pitch and see what happens. Also my measurements were run 38.5 inches, rise 8.75 inches, and my rafter length was 39.5 inches.
Last edited by humberguy; 05-11-2012 at 05:24 PM.
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05-11-2012, 05:31 PM
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#9
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Moderator
Join Date: Mar 2010
Location: Kansas/Oregon Coast
Posts: 4,529
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Having difficulty getting plumb cut for shed roof rafters
Quote:
Originally Posted by humberguy
Im really stuck. Not sure what other methods their are too find plumb cuts to are simple for me to understand.
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If you have the ridge set hold the rafter stock against the side of the ridge and where you want it to sit on the wall then scribe it and be done with it.
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05-11-2012, 07:14 PM
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#10
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journeyman carpenter
Join Date: Sep 2011
Location: nova scotia canada
Posts: 2,164
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Having difficulty getting plumb cut for shed roof rafters
i have a feeling your using the hip rafter angle on the speed square not the common rafter cut
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05-11-2012, 10:39 PM
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#11
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Member
Join Date: Apr 2012
Posts: 195
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Having difficulty getting plumb cut for shed roof rafters
Quote:
Originally Posted by jaydevries
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Check out this guy's speed square. Looks like the 1/4" rip marks are on the wrong side!
puttster
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05-11-2012, 11:32 PM
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#12
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Framing Contractor
Join Date: Apr 2006
Location: Caldwell, NJ
Posts: 1,755
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Having difficulty getting plumb cut for shed roof rafters
Quote:
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Originally Posted by humberguy
I got the run at 38.5 inches, the rise is 8.5 inches, I got the rafter length 39.5 inches(I'm remembering these numbers off the top of my head). I made the cut where the rafter sits on the beam. My problem is at the birdsmouth, the angle cut their isn't properly.
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Where did you get your length from? If you want a 4/12 pitch....your length is 40-9/16".
__________________
Joe Carola
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