Explain how the unit will be used
For a Staples enquiry, say whether the unit supports workers, a private gathering or a temporary loss of indoor facilities. Give the expected people and duration, even if they are estimates. Those details help separate a simple cabin need from a request involving extra washing or other amenities.
Look beyond the footprint
The space needed for the cabin is not the same as the space needed to deliver and service it. Describe the entrance, turns and proposed surface. Leave a usable route to the door, and discuss any uncertainty before equipment is dispatched.
Agree who will be there
If nobody can meet delivery or collection, discuss that in advance rather than assuming unattended placement is possible. Confirm how the intended position will be marked and who is authorised to resolve a question. Avoid sharing sensitive access details through a public-facing review or URL.