Great, simple design. How about a large gate hinge on the BOTTOM of the 4x4, in the center? This would allow a fold up to five feet, matching the tubes, yet not weaken the 4x4, since the tension would be holding the hinge shut. How did you choose the angle for the tubes? What is the total distance between the eye bolts? (Sorry for the questions) Great post! Thanks for sharing the creative. Welcome to the group!