Why do you keep spamming this site....... should really be your question???????
Because you are incapable of building one?
I think the main reason to buy a shed from a shed retailer is that it saves a lot of time and hard work. The alternative is building it yourself. Although this is a great idea if you're looking for a DIY project, it's awfully time-consuming and can be difficult if you don't have construction experience. Retailers are specialists who know the industry so they can make sure that the design is up to professional standard,that it's structurally sound and well insulated, and that it meets your specifications. They can usually complete the job much quicker than you canyourself and to a higher standard. They can even help with planning permission if needed. When I was looking for sheds in Kent, I considered building it myself too. Once I started though, I realized it was going to be harder work than I first thought. If you do consider building it yourself, make sure you know what you're getting yourself in for before you begin.