Sean, That is an interesting idea but for my property I can say I have never had a kayak fall off of the arms. However, if you are in an area that gets high winds you may have to adjust the design to prevent wind from blowing them off.

That’s great to hear John, glad you like the build! If building on a slop just be to sure to have your bottom arms high enough so the kayaks are not too close to the ground. Good luck and take care!

David, I think it would work if you ran 2×4’s across the bottom to create a “free standing kayak rack” but you may need a couples braces (2×4 angled) going from the bottom 2×4 up to the 4×4 post. The angled braces would add support to the vertical 4×4 post as there will be alot of leverage working against your bottom attachment points. Once you get started you might have to change things but it sounds like you have a good plan. One other tip I would offer is to make the spacing between the bottom arm and the upper arm wider so you can load the boats right side up on the bottom rack and then flip them over. On my design the boats must be loaded upside down and unloaded upside down as there is not enough clearance between the arms to completely flip a kayak. Thanks for stopping by and good luck with the project.