[djbnh]

I've been steadily using our Degritter Mark II to clean our vinyl collection. I have a number of classical multi-album sets that were passed down by relatives, some great pressings. Alas, some of the related multi-album boxes are past remediation (I've tried, believe me). I have generic single album covers to replace severely damaged single album covers; however, as of yet I'm unable to source replacement multi-album set boxes. I note that some of the boxes house 3,4, and even 18 LPs. Sizing is approx. 12.5"H x 12.5"D, varying widths.

Internet searches to this point have not been helpful. I've considering going to estate / yard sales simply to try to acquire the boxes of non-related multi-album box sets to repurpose the boxes. Short of the former or trying to construct our own boxes, what are other listeners using when their respective multi-album set box cannot be resuscitated? In advance, my appreciation for all relevant / helpful replies. FYI - most magazine storage boxes are tall enough, but not deep enough. This one was an exception re: height (open top) / depth (open front); however, the album contents still wouldn't be boxed. And this product is only available in Germany - they don't ship. Then there's this product which is a mailer; even though I might be able to hack it to make it feasible, it's less than optimal albeit you can vary the width from 0.5" to 1".

[GeneS]

   I’m not sure if this would work as it’s still a mailer, but this company has been good to deal with.
   
   https://sleevecityusa.com/collections/record-mailers

[S Clark]

Pizza boxes are often 14x14... a bit bigger than you need.  But the upside is they come with pizza!

[ketchup]

Someone with a larger 3D printer, something like a Prusa XL, will be able to print them for you no problem.  The XL can print up to a 14.17"x14.17"x14.17" cube.
https://www.prusa3d.com/product/original-prusa-xl-semi-assembled-single-toolhead-3d-printer/#specs

[Photon46]

If all else fails, you can always resort to having an art conservation materials business like Talas build you anything your heart desires. I've dealt with them and they are a class act. They can probably make any of the linked storage solutions any size you'd like.

https://www.talasonline.com/archival-storage/boxes/custom-enclosures

[GentleBender]

This site seems to have a ton of boxes for many kinds of media, including vinyl. https://www.gaylord.com/Preservation/Media-Preservation/Storage-Boxes-%26-Cases/Gaylord-Archival%26%23174%3B-Flip-Top-12%22-LP-Record-Box/p/HB12

Or something more custom and cool looking at Etsy. https://www.etsy.com/listing/1089234057/vinyl-record-wood-box-13-x-1325-x-25?ls=s&ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=vinyl+box+set+replacement+box&ref=sr_gallery-1-6&content_source=debc56cbdf5896ff3b22083bc1ec091057f977a6%253A1089234057&organic_search_click=1&logging_key=debc56cbdf5896ff3b22083bc1ec091057f977a6%3A1089234057&variation0=2230199280&variation1=2230199266