Expense (electing de minimis) or depreciate rental renovation costs?

I have read a number of posts here and articles online but am still unclear on what is acceptable. 

 

I did some renovations to the kitchen and bathrooms for a rental property.  It involved a lot of expenses costing less than $2,500 per receipt for things like light fixtures, tiles, faucets, mirrors, shower doors, toilets, etc.  The big ticket items costing more than $2,500 were for labor, cabinets and countertops.  A lot of the information I've seen online indicate to expense tangible items like appliances, but I have not been able to find information about  how to handle costs for other tangible items as mentioned that go into a renovation.

 

Can I expense all the items costing less than $2,500 per receipt  (via electing de minimis?) or must they be depreciated as a total cost of the renovation? 

 

Thank you very much to this community!