What kind of bolts and size timber should I use ?

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Hi All

This spring's project is to build a lean to store a few bikes etc. The shape will be roughly like the picture below.

Does anyone have some advice re. what kind of bolts I should use to fix the wall bearer to the side of the house? Also what size timber for the roof joists. It will be a polycarb roof buT i will need to get up there to do the flashings etc so will need to be reasonably sturdy (am thinking 50mm x 75mm at 400mm centres ?

Thanks

upload_2020-1-22_12-8-18.png
 
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Don't forget a gutter. And space the feet of the posts off the ground on concrete pads or steel shoes or both, as they will rot
 
It would look better and be stronger with a 5x2 or something rather than 3x2’s.
 
50x100 @ 600 centres and noggins at 1/3 span if it's wider than 2.1m.

Likewise for the bearer plate, fixed with 120 x m10 sleeved anchors @ 600 centres.

You should prep the flashing beforehand, and fit it after fixing each roof sheet, so you don't need to get on the roof afterwards.
 
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