Intervals with nails an metal l brackets at the wall side and hurricane ties and nails on post side.
How to build a lean to roof off a garage.
5 finishing it off.
Design lean to roof per your local building codes.
A somewhat different approach was used for the roof framing.
Use right size of rafters and headers.
Attach rafter brackets with screws to the inside of these 2 by 6 beams then hang 2 by 4 and 2 by 6 rafters between the beams using screws.
Add joist brackets and hang joists.
Traditional pole building metal roof construction consists of 2 by 4 purlins fastened on edge across the rafters with the metal roofing fastened down on these.
Lightweight but strong metal is used for the roofing.
2 feet apart should do it.
Make sure you provide plenty of roof support if you live in a colder climate and anticipate having snow on the shed roof.
If you re planning an enclosed lean to with a floor screw floor beams to the outside of the posts and the wall of the garage as well.
The 2x4 joist supports were attached with nails and metal brackets between the lower stinger on the garage wall and the roof joists.
Use 2 4 nailers in order to attach the roofing panels by nailing them onto the top of the roof joists.