Do you know of any specific ones? My normal sleeves are the Sleeve City 2.5. I also have some 13" x 13.5" sleeves but in this case they're way too big.
Not the answer you are looking for, but I just don't outer sleeve records like this and try to take care of them. Also following to read about others best practices …
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These fit 3LP gatefold and even some 4LP sets w/o being oversized.
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@TenderLovingKiller® Those are actually the ones I have that are too big. I actually do use those for smaller box sets and very oversized like like Takk but when it's a regular gatefold that's just too big to fit they're pretty big.