Small Goalpost steels. Calcs needed or not?

[Selfbuildscott]

I’m thinking about removing a timber post in a new loft conversion. (See pic). this is to allow for built in storage. I’m thinking goalpost frame with box steel will do this okay?

Dimensions are W 755mm H 1125 So not very big at all. Posts are C16 Timber @ 94mm. Steel I beam sits under all posts.

I’ve made one enquiry so far but they said they need structural calcs. Any idea what I can do to avoid this additional cost.

Obviously I don’t want the roof to fall down but considering there are 9 posts, 8 purlins and a steel which has replaced two purlins I think it’ll stay up! I’m happy to have it slightly over engineered

Any help would be great

 

[Bullet-Proof_Biscuit]

Who needs structural calcs?

If you dimension that engineering 'picture' a bit better and email it to your friendly local metal fabricators they'll knock up those structures for you either welded or bolted, (welded will be cheaper), & redoxide coat.

Probably on an hourly rate of £20-30/h, + materials. I'd say budget around £200 to make, then give them to your builder to install..

Oh and specify flanges top and bottom to allow fixing to existing structure with bolts or screws as required.