Find great deals on ebay for large shed workshop and large shed used. shop with confidence.. Wooden garages. large double doors on the apex end and a single door and windows on the side. we also do a wide range of other buildings inc. storage sheds. heavy duty 40kg green mineral felted roofs.. Workshops are larger sheds that offer the necessary space to complete diy, work with larger equipment or pursue your special hobby in a dedicated area. they are also ideal as large storage areas. as well as traditional wooden workshops, we also offer plastic and metal options to suit your preference..