The 6x3' garden shed we ordered with an 11 mm tongue and groove floor arrived with a huge knot (10cm around) in the middle of the board which was also in the middle of the floor. It was clearly broken before the tongue and groove floor was assembled! We contacted the service department, sent 5 very clear pictures and the result? Another message (which we were not told about in our telephone conversation) ordering us to go to our account and verify the faulty part instead of instantly ordering a replacement part bering sent out. Having heard nothing a day later we called and were told it would take 1 - 3 days for a replacement floor to be delivered. In a second call minutes later with a service manager this changed to 3 - 5 working days and no excuse apart from "we are very sorry" "but although we are the manufacturers that's how long it will take before you will get your replacement floor". Also worth mentioning the delivery was made not between "11:00 and 17:00" as stated, delivery was made 18:10. I waited all day for nothing! The poor man delivering the shed (alone) - told me he had started at 05:00 and had one more delivery to do and expected to be back in the yard at 20:00 hrs. In addition he had no equipment whatsoever to unload! Not being able to watch him unload by himself I carried the various parts into our garden while he undid the straps. Since this was a commercial delivery I do not think he was driving legally - working that many hours not being able to take a rest. The shed was delivered with a number of nails instead of screws - we opted to reinforce them with screws. Note we cannot assemble the shed without the floor in question!