Stacking your record collection could permanently damage your records, whether they're in their jackets or not. The weight will lead to warping of the vinyl and even possible cracking or scuff marks. You're also putting the album jacket artwork at risk when you stack records in storage.

Is it bad to store records flat?

Records shouldn't be stored horizontally, or flat. ... Storing vinyl records flat can place too much pressure on the records lower in the stack causing damage over time. Never leave records leaning at angles when in a box or on a shelf, this will cause the vinyl to warp.

Is it bad to hang records on the wall?

Yes, even 135 records can be mounted on the ceiling or wall without a single nail, screw, or dab of glue! ... I found a few examples on Pinterest, but the tutorials recommended affixing the records with screws or liquid nails, and that just wasn't going to work for us!