Levelling the top of studs

[^woody^]

Don't mess about with levels, the ceiling and floor may be out of level and not flat either so each timber may be different.

Fit the top and bottom plate then just measure each stud individually.

 

[Jupiter01]

Is there need for a double top plate as rafters will be sitting on this? I am using 63mm CLS for the rafters, with an 18mm OSB and rubber roof on top of that.

Thanks again.

 

[chirpychippy]

Is there need for a double top plate as rafters will be sitting on this? I am using 63mm CLS for the rafters, with an 18mm OSB and rubber roof on top of that.

Thanks again.

This reads like a flat roof? Which would mean your rafters are joists?

 

[Jupiter01]

This reads like a flat roof? Which would mean your rafters are joists?

There is a very slight slope on this roof away from the house. It’s not completely flat.

 

[chirpychippy]

There is a very slight slope on this roof away from the house. It’s not completely flat.

Question, what is the span from the house to the head plate you are putting the rafters/joists on? 63mm is not very deep for rafters/joists.

 

[Jupiter01]

Question, what is the span from the house to the head plate you are putting the rafters/joists on? 63mm is not very deep for rafters/joists.

The span is 70cm at one end and around 34cm at the other end of the shed. It is 6m long. It’s. It very wide. That’s why I thought that the 63mm cls would be adequate for the joists.

 

[Harry Bloomfield]

The OP has confusingly - opened two threads on this construction, the other thread is here - https://www.diynot.com/diy/threads/rafters-for-lean-to-shed.633653/

From what I can make out, this construction will be outdoors, and in the weather, so I think it would be sensible of the OP to raise his timber up, clear of the floor, at least on plastic packers, for their entire length.