Deducting Home Office and Storage Shed

Hello,

My husband is a sole proprietor.  We have an office inside our home that we use for our books, but we also own a shed that stores all of the business tools and supplies.  The shed is across the street from us, so it is technically a different address.  I'm assuming that I should use our home office for the home office deduction, but where do I deduct the expenses and such from the storage shed?

Thank you!