6 reviews of tuff shed "very nice product, would have been better if installers did everything correctly. yes there is a slope but putting the highest point 12 inches. Storage sheds in san antonio tx - 4x4 storage sheds for sale storage sheds in san antonio tx tuff shed storage storage shed movers space coast. Tuff shed | homeadvisor prescreened garage contractors, shed & enclosure contractors in san antonio, tx..