Anyone know a good source for boxes for speakers?

Hi. I buy most of my boxes at the local U-Haul store. They have an excellent choice of sizes, and they are very reasonably priced. Hope this helps!

Try your local Mail Boxes etc. or the UPS/FedEx shipping store. I had a set of boxes made locally to ship some full range Marin Logan electrostatics. The boxes were better material than the manufacturer and about half the cost.

Rick

I had boxes custom made for a pair of Dunlavy SC-IVA speakers from here:

http://www.mrboxonline.com/

I live not far from the company and picked up the boxes, but they will ship.
Reasonably priced, nice people, excellent service.

In NY metro, Boxes are everywhere. Look on any street corner or retail shop- especialy on recycle days....

I second the U-Haul suggestion . They make a fairly large box called a wardrobe that I used for some JM Lab Electra
926's (mentioned for size comparison) . That coupled with some 2'X 4' strofoam insulation sheets from Home Depot made for a very sturdy and protective shipping container . The two wardrobe box's and two packages of the styrofoam with a role of heavy duty box tape was about $50.00 total . I have used this method twice and received nothing but praise for the packaging of full size floor standing speakers that were shipped across the country by Fed X .
Good luck !