The rental cost for a quality Rock Springs portable toilet is determined by the scale of the toilet, its purpose, the date of when it will be rented and the duration of the rent. Renting a portable toilet during weekdays on a short-term basis can amount from $150 up to $250. However, this price fluctuates when the toilets will be rented over the weekend or during holidays. A standard portable toilet can cost from $160 to $290 over the weekend and holiday. A deluxe portable toilet can cost as much as $800 over the weekend and holiday. A portable toilet for handicapped people is estimated to be between $63 to $292 if rented on weekends and holidays.