I decided after breaking my back lifting and moving carboys so many times. I finally added wheels to my milk crates.
This is my project.
Materials List from Home Depot:
12, 1 1/4" Swivel Castor's = $2.49
1, 2X2' sheet of 3/8" wood = $5
1 box #6 1 1/4" machine wood screws = $5
3 milk crates = Use your imagination (Or you can buy crates at Staples)
Here I'm aligning my carboy dryer to fit inside the crates, inside the support structure for the casters. This allows me to dry my carboys in the crates for just a little added support.
Preparing for assembly.
Ahhh! Done and they fit great!
As you can see I have hardwood floors and I don't want to scratch them. Or at least minimize the damage.
If I wanted to do this again I might use 1/2" plywood and longer screws but this will do for quite a while.