And, folding the edge over twice eliminates any potential rough/sharp edge due to melting cut edge or impregnating with your favorite coating. It's hard enough on your hips/sides when rolling with the wooden coaming, let alone if the edge of the fabric were sawing at you!

Brian

: Totally agree. I realized my mistake on that one after it was to late. I
: should have mentioned that too. Also, doubled up looks better.