Search results

Thanks so much for the replies,stupid idea, feel a pratt now ,the idea for this was from swift plinths(https://www.swiftfoundations.co.uk/shop/swift-plinth-plus/) ,they seem to think a concrete block straight onto a gravel grid on soil is good enough to support a log cabin so i thought i go one...

hi I am building a timber framed conservatory and will have it sit on 9 pad foundations each measures 450 mm by 450 mm and a depth of 500 mm,my question is rather than fill the holes with concrete on which i will place concrete blocks to support the joists ,i thought i would fill up the holes...

update.........i decided to fix two timber wall plates to each gable end (220mm x 75mm c24) with 190mm 12mm diameter steel bolts which were fixed into the wall using chemical resins and then fixed timbers in 1 piece (5m x 220mm x 75mm c24)to span the full length, I got the timbers into the loft...

oh yes it does but thought best to leave it alone as i dont really want my cowboy diy being connected to the rest of the house :)

yeah your right,i will be able to at least support two joist on them ,but my thinking was that because the large supporting wall has no wall underneath it on the ground floor because of a through lounge i thought i might as well leave the joist self supporting ,its only £32 per joist and all i...

yeah your right,i will be able to at least support two joist on them ,but my thinking was that because the large supporting wall has no wall underneath it on the ground floor because of a through lounge i thought i might as well leave the joist self supporting ,its only £32 per joist and all i...

Hi the joists are going to run parallel to the large supporting wall you can see in the centre,there is a small section of wall near the loft hatch but i think judging by the over engineered splice plate i am going to use with 16mm bolts ,i just cant see them failing,the loft is going to be...

I am going to use steel plates 500mm x 200mm x 10mm with 8 holes centrally for 16mm coach bolts and sandwich the butt joint which will be made 1250mm from one end of the joist.

I have a photo below showing supporting walls ,i might be able to create the butt joint 500-1000 mm away from the timber end and then bolt them together using rsj splice plates //media.diynot.com/229000_228879_93873_29217491_thumb.jpg

Any ideas how a 5m span be covered by a joist cut in two? maybe splice plates and then a piece of timber on either side bolted together and maybe the butt joints be created at different points on all the joists .

Thanks John, any reason why its ok to do this for a joist repair but not to create a long span joist out of two shorter timbers?

Hi everybody I am currently thinking of installing a loft floor by myself . It will be 5m clear span with 600mm centres using C24 2500mm x 75mm x 225 mm timber butt jointed together to make 5m joists because its the only way i can get the timber in loft. I was planning to butt joint using...