Gable overhang Question, or how much overhang can I support with brackets

[mmhailey]

I am slowly learning sketchup, and have drawn a model of the 16X24 Kingpost I am starting to cut.  The plans I have do not have an overhang on the gable ends, but I would like some. Note the brackets would go outside sheathing,but I left out the sheathing to make it clearer. The rafter span is about 10'6" on 2X6s..... and there will be 2X6 T&G underneath.

 



My question is, how do I go about figuring how much I can overhang with brackets. My model shows 4 foot of overhang, but I don't have a clue if the brackets will support it, or stop uplift? Another question I have is will the brackets apply too much force to the King Post ? My gut feeling from previous stick built houses is this is not a problem, but the Timber aspect has me scratching my head.

Any ideas.

Thanks

[witterbound]

We used brackets (5x5 cedar) to support a 2 ft overhang on our gable ends.  My hunch is that the engineers have a way to calculate the numbers you're looking for (I have no idea), and it's going to need to be supported by your 2x material as well as just the brackets.  We used long lag bolts to bolt our brackets through our 2x walls into our posts (or sometimes into 2x6 blocking where there wasn't a post).  There has got to be a lot of force pulling on the top lag.  My hunch is that's the weak point in the whole setup.  (We also used brackets to support 3 ft overhangs on our eaves.)

[Jasperfield]

Looks like you're getting pretty good with SketchUp.