8ft overhang

[sgoti]

im going to put up a 30ft x60ft with 8ft overhang, would i get away with using 7x4 rsj? or would i need to go bigger? and what would be the best way to do the overhang have it just bolted on at the end of the eave or just have is as part of the raffter with the stancion bolted underneath

 

[MickyMook]

I’ll ask the builder tomorrow what size the engineer has specced the steel for ours

 

[MrA.G.]

7x4 may work ok as long as you have a good haunch detail as this is the point of maximum bending. We used a 10x6 for a 13ft overhang with the rafter running over the top and a haunch either side as per picture

 

[aangus]

7x4 may work ok as long as you have a good haunch detail as this is the point of maximum bending. We used a 10x6 for a 13ft overhang with the rafter running over the top and a haunch either side as per picture

Are the purlins going inside the web

 

[MrA.G.]

Are the purlins going inside the web

Yes, there is a bit more welding involved but we have done it now for a couple of sheds and for a couple of reasons. Stops any birds sitting or roosting on the rafters and personally think it looks better

 

[Forever Fendt]

Use 8x4 it’s 4 kg per meter extra weight so £2.50 per meter extra so about £45 per frame extra cost in steel less than £300 on the whole job , not a lot for piece of mind

 

[MickyMook]

I’ll ask the builder tomorrow what size the engineer has specced the steel for ours

Sorry, forgot