It is always better to have a large rafter rather than be concerned with a sagging roof.
Hip roof rafter size.
From your average hip roof calculator to something more specific like a hip roof rafter calculator there is plenty to consider with this kind of calculation.
The drawings are representative of all of the hip end side jack rafters and do not include the overall lengths which are available on the layout tab.
Therefore it s perfectly acceptable to use a hip member that sized to take the cut end of the jack rafters and a sensible width such as 1 5.
To do this your best bet is definitely finding a good hip roof construction calculator so that you can work it all out in a timely and simple fashion.
Column headings refer to live load.
If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.
Getting your se to accept this is another matter though.
Hip and valley rafter sizing.
This calculator will help you estimate hip roof parameters including rafters and roof area person outline anton schedule 2011 08 29 17 53 20 one of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area.
Length l in feet is shown at right.
This is the kind of size used on hipped roofs for years without any problems.
This chart is for initial rough sizing hip and valley rafters work should be checked by an engineer before plans are finalized.
Roof rise this should be calculated from the base of the roof to the highest point of the roof gable the peak.
Here the number is 1166 66 inches.
For a good straight fascia add an extra 20 mm or so to the tails of all your rafters total length.
This is based on an article in the journal of light construction.
Rafter run outer wall this should be measured starting from the center of the roof span and then extending to the very edge of the exterior wall.
The hip end jacks tab displays a dimensioned side view and top view of the hip roof jack rafters for the hip end side of the hip rafter on an irregular hip roof.
With consideration for r802 3 and table r802 5 1 3 2006 irc based on a common rafter length of a little under 20 it is plausable that 2x10 common rafters attached to 2x12 hip rafter can be used prescriptively where common rafters are 12 o c.
Here the number is 941 86 inches.
Ronnyraygun 8 feb 2013.
1 ridge 6050 x 140 x 50.