Wedding Units A 24% larger unit, with flushing capable toilet, toilet paper, hand sink with water, soap, paper towel & towel dispenser, garbage pail, shelf, purse and coat hook, solar lighting, available in an off-white exterior for discreet placement and a welcome mat. The number of restroom units needed for any event fluctuates greatly. There are many variables that effect how many portable washrooms you will require. Variables such as number of males versus females, or liquor being served, will alter the amount of units you’ll require. We discuss these exact details when booking your units and work closely with wedding planners, resort staff, party supply companies and caterers.