Dock Jack

[EllyPoinster]

Originally Posted by RLW

Just go to your local HD, Lowes or lumber yard and get a adjustable lally column and use it for far less $$$$$$. They are quick and very easy to use.

I actually have an adjustable lally column already. They work fine if you only have to raise the dock six inches or less. If you need to go higher, you have to stop, prop and reset every six inches. The jack in the picture above can lift over 3 feet in a single set-up.