I'd start your own thread in the workshop section.I welcome advice on my family members garden shed design list:
Small 8' x 6' by about head height with a felted pitched roof with similar wood to the neighbours !!! (4" wide or so horizontal T&G with a brown stain look) to keep some gardening tools.
I welcome any/ all advice on T&G, will it shrink and expand leaving gaps and buckle with excess swelling.
I'd use 3/4 plywood floor and roof.
4x2 floor and roof joists 3x2 studs on 24" centers.
If apex then a 6x2 ridge beam.
Make sure the timber is aclimatised to the outside if its either dripping wet or bone dry!