At the moment boarding services all have their prices set as a nightly rate. For fixed duration services that means users need to calculate a nightly rate even if they are charging a fixed rate for their fixed duration service. This can result in some challenging pricing setups especially if the number of nights does not divide evenly into their price.
i.e. Very common for facilities to offer a 2 week B&T service. This means 13 nights, which does not often divide nicely into a set price.