To clarify, I ordered both deeps and mediums and placed the order online. There was no option to add holes in the end bars in the online ordering menu. The only options were the top and bottom bar configurations (grooved, wedge, etc.). I heard from others that if you call in your order, you can specify that they have the holes bored. However, their default configuration is no holes apparently. Not sure what they thought I was doing ordering 2 pounds of wire and 1,000 eyelets ;)
I should have researched it before placing my order. It's been a while since I ordered frames, but I suppose with all the plastic foundation on the market, it makes sense that holes in the end bars don't have to be as common as before. If you order online and want them, make sure you ask for them specifically.