I use wire shelves to store paper of different colors and weights. These shelves are cheaper than real paper sorting shelves and work great. There are six usable shelves and if you need more space like I did for the cards (orange paper in the attached image) I just pulled out one shelf to accommodate the space required. The shelves are strong enough to support paper without sagging. This makes storage easy and affordable. Recommend this as an effective, less expensive option.
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