From £596.51 Temporary storage or work space in an instantstorage buildings
From £2765 Temporary storage or work space in an instantstorage buildings
From £7,521.15 Self-built sheds without concrete foundationstorage buildings
From £4,357.08 Flexible industry-quality storage spacestorage buildings
You can create an indoor porch by simply installing the front wall in the second or third roof truss. You could do the same with the rear wall of course.