The mod to integrate with

https://www.curseforge.com/minecraft/mc-mods/sophisticated-storage

Describe the feature

• Framing saw upgrade for storages
• Framed sophisticated storages.

From a quick look at the code of Sophisticated Storage, it doesn't look feasible to add a Framing Saw upgrade to their blocks. I have contacted the Sophisticated Storage dev but have not heard back from them yet.
Custom storage blocks should be possible, but would most likely be more suitable for a separate addon, which is something I currently do not have time to maintain