I was buying my wooden panels off the shelf from Blick, and they seemed fine. I recently ordered custom-built panels for an upcoming show from BAS Bars, and I am a convert. The customer service was excellent, and the panels are beautiful and sturdy. They were shipped directly to my door, which made the whole process seamless.
If you're anything like me, you'll come back with 5 paintings every time you travel abroad. I did on my last trip and when I came home with all these rolled up canvases, I realized I needed help getting them up! In the past, I have gotten them framed but that can get pricey so I opted to get them re-stretched this time (which isn't cheap either - ironically it cost more than the paintings themselves but what is a girl to do?? Buy a painting to store it?).
Bay Area Stretcher Bars offered a reasonable quote and did such an amazing job! They also helped me mount 2 oil paintings on to a cradled panel. Elizabeth, who helped me with through this entire process was super patient and friendly. I definitely am not afraid to come back with more paintings on a future trip now that I know I have this place (hopefully not though because I'm running out of wall space).