Homedepot.com has do-it-yourself dock builder kits, same as Walmart.com and shows the PlayStar, and MultiNautic brands. Basically, the kit in a cardboard box gets shipped free to a nearby store, and you complete the dock project with deck lumber purchased locally ........ like wow ......what a 21st century, do-it-yourself concept ...... a dock in a box ..... omg!
I just ordered two of the PlayStar $8.49-each galv finish base plates that fit either a 1 5/8" or 1 7/8" diameter pipe leg support, and look forward to doing this repair in 40-degree water, five foot depth, while holding my breath........ weeeeoooooooo!
My aluminum dock is soooooo ooooold .....it looks a lot like a 1936 DC-3 airplane ...... what with many, many, many aluminum rivets holding it together!
Man-o-man ......last spring I gave up on finding a similar base plate and ended up making six homemade baseplates with a mitre saw, drill and 2x6" pressure treated lumber and a 1/4 x 4" stainless bolt .....and they actually seem to be standing up good.....yikes!
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.... slightly off-topic, but what the heck: If you are a large sized adult, such as myself, then you may be interested to know that Walmart.com has Stearn's pfd's, blue or red, adult over-sized size, USCG-approved, for the bargain basement price of 9.94-each ...... this is a high quality and a low price.