Thanks everyone for the great recommendations!
It is tricky to ship glass however our damage rate for everything, including glass is less than 1%. If you do get something damaged just call or email us and we ship a replacement ASAP.
Early on I noticed that often times one of our customers ends up doing a show or something with short notice. Sometimes they may not have time to for replacements to arrive so they need it undamaged in the first shipment. For that reason we worked very hard on our packing. Glass is very delicate so we do not currently ship glass larger than 20x24 unless a customer is placing an order large enough to ship on a pallet via freight.
We ship via Fedex. Picture frames, especially larger ones are an issue for them. Often the boxes are too large for the regular conveyors and so they get additional handling and the box packing has to be designed to accommodate that.
Unfortunately it is impossible to get the damage rate to zero. Even a wooden crate will not stop a forklift fork from going through the box so it is always wise to order in plenty of time to get a replacement shipped.
Cheers,
Mark