You might be interested to know that The Lugarde Prima Mark Shed 240x180 unit makes a great indoor or outdoor office - compact but effective for my IT Repair business. Any time I want to move it outside, I can easily dismantle it since I used 2 pins on the roof and a few to fix the flooring but no screws or nails at all.
The kit is brilliantly packaged in a hold all with gloves, mastic and all the bits one needs. Also, includes a few spare boards in case of a muck up.
The way it was delivered was also amazing. A knock at the door - of my difficult to find house - by a Dutch chap with a fork lift truck and 30 secs later he had delivered it and was packing the foklift away.