Dock Sides 86929 Gray Stand Mounting Base

I used this and a Dock Sides 86902 Receiver to mount a large cantilever umbrella on my wood deck. I mounted the 86902 receiver under the deck with some additional support bracing, cut a hole in the deck for the tube to protrude through, and the top base of this 86911 stuck up an additional 1-2" to mount the umbrella on. It works great. I don't have that giant umbrella base on my deck anymore. These things are solid and heavy, and a great deal at the price. I couldn't find anything else that would work. (Note your umbrella will need a 4 hole mount, so not every one will work with this I think).