Just an fyi, I went to a newer Lowes the other day, and they had every size imaginable except for 14x20. I even had a worker try and locate one, no luck in any style.
He said, "hate to say this, but Home Depot will have it, they have more sizes stocked." I told him you used to stock it and he said it must not have sold well and they de-stocked it.
Sucks for me, my house also uses this size. Home Depot it is.
Rather be Ridin' than Rollin'
2003 UA 40E(wheelchair accessible)