Start with the access requirement.
Start with the people using the facility. Discuss accessible layouts, routes, ramps, clearances, and the exact requirements of your site. The useful question is how the facilities will work at the property, not whether the photograph resembles a unit you have used before. Record how many people need showers and toilets, whether their use overlaps, and which permanent facilities remain available.
A grab rail or ramp in an image does not establish a compliant configuration for your site. Describe users’ requirements and have the assigned layout, approach, ramp and clearances reviewed before booking. Accessibility needs belong in the first conversation, not an assumption made after delivery.
Put the utility responsibilities in the plan.
Confirm potable water, the assigned electrical connection and an approved wastewater arrangement. Identify who checks those connections and who manages servicing during the rental. When water, power or drainage is unavailable, explain that condition before the equipment is selected. Do not assume an ordinary outlet or nearby drain will be appropriate.
Make the quote fit the whole project.
A preliminary equipment amount does not establish delivery, collection, setup, servicing, taxes, permit responsibilities or minimum terms. Bring those questions together with the location and dates, then request a written scope. Use the calculator for the documented models and rental bands, or call for a configuration or duration that is not listed.