Advice on a method for building our platform into a circle

[Nicholas Russell]

Hi All,

We are in Southern Ontario and I've been hard at work preparing for our yurt to arrive from

Yurtz by Design

in a few weeks.

I have a large deck ready for the platform, but I need to draw on some experience from all of you!

I've been planning on placing 2x4's across our deck joists to act as our floor support. This will essentially be the structure for our 24' circle platform sitting on top of the deck joists.

What's the best way to place and then cut the 2x4's on top of my joists (they will be put at 16'' centres) so that the edges of the 2x4's conform to my 24' circle? Do the edges of the 2x4's need to be curved?

Much Appreciated,
Nick