I believe it is 30 inches tall and 34 inches wide. The top opening is 2 inches wide and the lower opening is 1 inch wide.
I realized after putting my stakes on the rack that there isn't enough room for everything. I should have made it bigger, but highlight is a bitch and I am in constant learning mode doing these types of things since I have no formal woodworking education.
One thing I enjoy about this simple design is that it can be in constant flux. Ill more than likely be adding other racks and holders for specific items.