SCQG uses dowels to hang quilts at the Quilt Show.  Attached are instructions on how to create  a “D” sleeve.  Note that for all quilts up to 82″ in length are required to have a “D” sleeve to accomodate the dowel.

Typically a 4″ sleeve is required for the majority of quilts hung at the show.

 

Hanging “D” Sleeve

 

Another example of D sleeve construction