Thanks for the pics! I would be happy to help you. We do not have the Rack'Em Grass Catcher for Bobcat Lawn Mower Deck with Built-in Bracket item # RCMMS4-RS2 available to measure so I reached out to Rack'Em and they gave me some approximate dimensions of 21" wide x 30" long on the curved side and 16" tall. I have linked a diagram I made below. view full answer...