Is it just me?

[moselle]

I have just put all the rafters on my project today and it still seems really "shaky" when I am up on the top plate of the 8' 2x4 walls.(I have all the walls sheathed with plywood)
I can give it a kick up there and it moves a bit.(in the center of the wall)
It has been since high school I did 2x4 construction but is this inherent until I get the roof plywood/sheathing on?
(hoping for a "yes" answer here)

When is it going to get some rigidity?

Any experiences welcome.

[JRR]

F = Ma

As you add more and more mass, your "kick" will yield less and less acceleration.  Plus more and more timbers, and flooring/roofing will add more connections that resist flexing.

[PEG688]

Yup it's normal , once the roof is sheathed and the roofing on = weight + insluation = sound deading + sheetrock= more weight + siding = more sound deading = etc etc etc . No worries mate  

[moselle]

Oh, thanks a lot all!
Happy me, now to put on roof sheathing.hoo hoo!
Have a great day.