I have a 12’6“ wall that I want to install built ins. i need 2 deep drawers for file storage. Assuming I use 30” cabinets, I would have 3 additional deep cabinets. One of them would store my printer. the modem is on the otherside of the room as thats where the connection is. I like symetry. That leaves me 2 deep cabinets to store stuff in. Since Im starting from scratch Id like to try and a avoid stuff getting lost in the deep cabinets.