Concrete Floor - Expansion Gap

[Skavenger]

Hi;

I am laying a concrete floor in a garden workshop approximately 3m x 2m . When laying the concrete do I need to make an expansion gap anywhere?

Thanks

 

[23vc]

Hope not, as I didn't on an extension a lot bigger.

 

[Skavenger]

Coolio

 

[Paulg31]

I wouldn't worry about expansion. In fact following pouring you'll have a bit of shrinkage as it cures.

 

[John D v2.0]

Expansion gaps are as much about shrinkage as expansion! Should really be called a movement joint.
But 3 by 2 sounds small