DOMESTIC
DEMAND
PROJECT
  EDITION OF NFPA 13R:    
 
  CALCULATION TYPE1:    
 
  UNITS:    
 
  PRIVATE FACILITIES:2        
  BATHROOM GROUPS WITH FLUSH TANKS:      
  BATHROOM GROUPS WITH FLUSH VALVES:      
       
       
       
       
       
       
       
       
       
PUBLIC FACILITIES:
       
       
       
       
       
       
       
       
       
       
       
       
       
  OVERRIDE:        
  OVERRIDE FIXTURE UNITS:      
  TOTAL FIXTURE UNITS:      
  TOTAL DOMESTIC DEMAND:      
1 The term "flush valves" was used instead of "load units" up until NFPA 13R 2019 Edition.
2 Within Dwelling Units
DOMESTIC DEMAND CALCULATOR
Given
Source Value
   Edition of NFPA 13R Used Given -
   Domestic Predominately Flush Tanks or Load Units? Given -
   Units Given -
Quantity of Fixtures
Unit(s) Qty Subtotal
Private Facilities (Within Individual Dwelling Units)
   Bathroom Group with Flush Tank
   (Lavatory, Water Closet, Bath/Shower)
   Bathroom Group with Flush Valve
   Bathtub
   Dishwasher
   Kitchen Sink
   Laundry Trays (1 to 3)
   Lavatory
   Washing Machine
   Water Closet with Flush Valve
   Water Closet with Flush Tank
Public Facilities
   Bathtub
   Drinking Fountain
   Kitchen Sink
   Lavatory
   Service Sink
   Shower Head
   Urinal with 1-inch (25 mm) Flush Valve
   Urinal with 3/4-inch (20 mm) Flush Valve
   Urinal with Flush Tank
   Washing Machine (8 lb / 3.63 kg)
   Washing Machine (16 lb / 7.26 kg)
   Water Closet with Flush Valve
   Water Closet with Flush Tank
Domestic Demand
Value Units
Total Fixture Units units
Total Domestic Demand