DesignConnection

I need assistance in changing the way my window label is being created. For this i will use a 30"x48" Single Casement for example. What i currently have : RO %width.to_s("'-\"")% x %height.to_s("'-\"")% %type_code% Which gives me a : RO 2'-6" x 4' SC what i'm trying to get to is RO 2'-6" x 4'-0" CSMT any help is greatly appreciated!!!!