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Hi,

 

I am in the early planning stages of rear extension, it will be entirely self built

 

I am keen to build the walls out of timber (6x2 stick frame), the proposed dimensions are 6000 L x 6500 W.

 

I have built a couple of flat roofs before (e.g. for a garden office and shed), so i am looking at doing the same (4-5 degree pitch).

 

to help manage the roof build up, i am considering using a RSJ/UC so i can span the joists from the beam at the mid point (the other thought is to use Glulam).

 

If the wall is made up of a stick frame, is it possible to rest the steel on the frame (with suitable cripple studs), the weight on either end should be around 75-100kgs?

 

i will be using a SE over time, but i am keen to resolve some of the key constraints as early as possible.

 

Thanks in advanc

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3 hours ago, AndyFExtension said:

Hi,

 

I am in the early planning stages of rear extension, it will be entirely self built

 

I am keen to build the walls out of timber (6x2 stick frame), the proposed dimensions are 6000 L x 6500 W.

 

I have built a couple of flat roofs before (e.g. for a garden office and shed), so i am looking at doing the same (4-5 degree pitch).

 

to help manage the roof build up, i am considering using a RSJ/UC so i can span the joists from the beam at the mid point (the other thought is to use Glulam).

 

If the wall is made up of a stick frame, is it possible to rest the steel on the frame (with suitable cripple studs), the weight on either end should be around 75-100kgs?

 

i will be using a SE over time, but i am keen to resolve some of the key constraints as early as possible.

 

Thanks in advanc

The time to Bring in SE is right at the beginning 

It will cost you the same money to bring him in now as it will later 

 

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I second what @nod says. I can't answer your question as to whether the steels can sit on the timber. I have a large stick frame more than double your size but the timber roof structure, including glulam beams of almost 7m long all sit on the steel beams, so really the other way round. My  structural engineer specialised in steel and timber frames.

Edited by SimonD

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