I moved recently and have my boxes unpacked. These include single layer RSC bought at retail, and heavy duty double layer furnished by professional movers. All are in very useable condition but with the expected tape and markings.
Dimensions are shown in the photos, which are in the same order as the list. The Portillos boxes have styrofoam insulation and include several freezer packs for keeping cold inside. I also have a bunch of lightweight foam packing thingies.
2 tall EV speaker HD
1 large speaker box HD (28x30x40)
4 medium dish pack HD
1 large Home Depot
2 Portillo insulated with freezer packs