We purchased a 10x8 shed, but there were no supports to hold the roof in place. I visited a few places that sell said 10x8 sheds and they had extra supports to ensure the roof is secure and you are able to access the roof to put the felt on. The customer services a passed me onto the supplier, who were good over the messaging system they use, but i ended up visiting their head office as it was only a few miles down the road. I spoke with a few people and they offered some advice, which i followed, but to no avail, so I had to purhcase extra timber and support myself in the 3 positions in addition to the small supports they have provided. I would not purchase this item again unless there was clearly improved support for the roof, and if you are thinking about purchasing this item, just be wary you will need extra wood for support, otherwise, you will have bowed roof and not be able to climb over the top and fit the felt, as you would probably fall through the roof.