ARB awning sail track size/dimensions?

[pdxfrogdog]

Hi does anyone know what size sail or rope track is used on ARB awnings for attaching accessories such as awning rooms and windbreaks? I’m needing to purchase some compatible sized track online and just can’t seem to find the dimensions or specifications. Thanks in advance.

 

[WOODY2]

I believe it to be 5/16, I got mine from SailRite

 

[pdxfrogdog]

Thank you! My digital calipers finally arrived and what I'm seeing in terms of the cord size on the windbreak seems to verify a 5/16 sail/rope track.