Every single frame that we ship is cut to your exact specifications and assembled by hand after you place your order - nothing is "standard" sized or pulled off of a shelf, so there is no savings for us to pass on when a large order is placed because we are still custom-crafting every single frame.
We do however custom-box every order and charge shipping at our cost, which is a substantial savings to all customers but especially ones that order in large volume.
The one exception to this is if you are thinking about placing a very large volume order of identically sized frames, there may be some production-related savings we can pass on to you - reach out to us if this is the case!