3" from Home DepotNice.
What are the specs on the casters ?
Nice! Considering the lid hinge as well. Which brand? I see a few makers of this hinge on Amazon.
What size are the metal pieces you use with the party q?
They are from Lowe's. 3/4" Hillman Group chrome plugs. They can be found in the fastener section in the specialty drawers. Cost about $1.09 each. Pop right in.
http://www.lowes.com/pd/The-Hillman-Group-1-Pack-Steel-Hole-Plug/3013218