I have 2x Mammoth brand 2x2’s that are both about 5ft tall.
They are PERFECT little veg boxes but I use one now as my “seed generation station” running an HGL100 on my top floor (keeps pollen away from the ladies downstairs), and the other one is now my drying tent on the main floor!
It’s thankfully so small it’s in my sitting room and takes up less space than the missus crafting pile(s) 
Looks great as a solid and cozy growing corner @amumayuk