Lean to construction advice

[PaulH757]

Hi, first post on here.

I'm looking at a project to build a wooden lean to man cave on the side of my house but would like some advice regarding the uprights.

I'm planning making it rougly 6x2.5m, so I'm thinking 5 uprights should be enough?

But my main question is about fixing them to the ground

 I was thinking of using metposts but I've heard bad reports about them although they look a fairly simple solution.
Dig holes and postcrete them in? If I did it this way how deep would I need to go given I want it about 2m high, and how easy is would it be then to get them all the same height?

Or dig a trench and fill with hardcore/concrete and bolt post holders to it. This would seem the easiest way to get everything level, how deep would I need to dig the trench and what sort of depth concrete woud I need on top of the hardcore?

THanks in advance for any advice

[Tennentslager]

Loads of ways to do it, maybe a picture of where it's going will get you better advice.

Re the posts being level, leave them all too high then level and mark then cut the tops.

A drawing is better than a thousand words ??

[joe90]

What are you doing for a floor?

[markc]

Far too many variables to give any meaningful answers. Post spacing depends on the materials for the walls and roof, fixing depends on the floor and post size/material and number etc etc

[Temp]

You need to decide if this is going to be a proper extension or just a shed.  

 

Proper extension would have a door between it and house, proper foundations, insulated floor walls, roof, double glazed windows, heating and electric. You might me able to build this as a timber frame but how close to the boundary is it? 

[Dave Jones]

for 6m span 3 100x100 fence posts conked in will be more than adequate. 

[PaulH757]

20 hours ago, Temp said:

You need to decide if this is going to be a proper extension or just a shed.  

 

Proper extension would have a door between it and house, proper foundations, insulated floor walls, roof, double glazed windows, heating and electric. You might me able to build this as a timber frame but how close to the boundary is it? 

Just going to be a timber frame lean to shed. About a metre from the boundary, enough room for me to get alongside it to fix wall panels at least.