I have turned over a 100 of these over the years for the town I live in. they go along the waterfront, 8 1/2"Dia x 42" with a 2 1/2" hole x 12" deep in the bottom
these are the blanks from the sawmill
with all the corners knocked off
turned but just have to clean off the spigot on top
done 1 1/2 hrs each
going to the works yard. you can see the hole in the bottom
there is always a little variety
ron