Menards has 4 x 10' sections that are prebuilt. I bought one prebuilt and three that I put together. After all was said and done, I am not sure if I got the best deal. I like the dock, but I ended up spending over $3,000. They have 11% off going all the time.
The dock is made by someone else. (Playmore, or Play-something). You might be able to get a better deal, if you went direct..
Good dock though. All aluminum, an heavy gauge. Treated wood.

12 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs)
I think that's about all I should put in my little pond.
Otter attack in 2023.