hi everyone. Im looking for a decent piece of CAD software that is relatively cheap or even better... free.

I have some box section and tubular steel designs to mock up before fabrication so I can get a better vision of them before I make them.

I hope someone has some knowledge on this one. Im running windows on my laptop atm.
I have looked on microsoft store but Im not sure what to go for.

And preferable has a 3d viewing option.
thanks very much