Roof Truss too short help!

12 May 2016
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United Kingdom
Hi, I am converting the area above my garage to habitual space by changing the roof. I made a mistake in ordering the roof trusses they are too small - since its my mistake I don't want to pay for a second set. I've seen you can add 'scabs' to lengthen them. is it Ok just to nail or coach bolt some extra timber to them or will my building inspector need to see calculations - I'm increasing the span from 1.8m to 2.8m.

Thanks for any advice and support
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Add scabs?

Lol, just sling them and then ask for the truss company surveyor to come out and measure. A metre short means they are useless, surely.
You can't add scabs to lengthen them without invalidating the design.
Your BCO would most likely not accept them.
Bite the bullet.
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Thanks for replies, thought adding scabs was a bit dodgy but I've already spent £1200 on the shore truss and it's another £1600 for the right ones. Just trying to save some money. I I tandem garage door I need 21 of them

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