Making storage cubes a permenant structure

At the mo, i use argos storage cubes to section off parts of rooms, but am looking at making a permenant structure using these- ie) flooring, keeping mess inside, proper door, making it look quite nice in terms of the rest of the room.

(at the mo its about 10ft x 4ft so can't really put a roof on.)

Would love anyone's ideas or pics of indoor accomodation please

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