Toilet design Many different regulations 1
guess what toilet features might be regulated? building code? accessibility code? universal design?
planning 248 CMR – the plumbing code Number of toilets, lavatories (Table 1) water fountains, service sinks floor drains (18.n.i, required when two or more toilets/urinals)
configuration and clearances 521 CMR, Chapter 30 Some clearances and minimums, others are maximums Some are measured from the nose, others from the wall
Standard Accessible Toilet Stall: Standard accessible toilet stalls shall be at least 60 inches (60" = 1524mm) wide and 72 inches (72" = 1829mm) deep. See Fig. 30a and 30b. Arrangements shown for standard accessible toilet stalls may be reversed to allow either a left- or right- hand approach. Water closets in accessible stalls shall be located on the 60 inch (60" = 1524mm) wall and shall comply with 521 CMR 30.7, Water closets.
all other regulations STILL may apply, depending… 521 CMR, Section 25, Entrances 521 CMR, Section 26, Doors 521 CMR, Section 29, Floor surfaces 521 CMR, Section 31, Bathing rooms 521 CMR, Section 33, Dressing rooms 521 CMR, Section 35, Tables and seating 521 CMR, Section 36, Drinking fountains
oh yeah, design issues line of site into bathroom crowding changing station convenience lighting
Assignment #2: Restaurant toilet rooms Need to: –Calculate specific occupancy loads –Add up for overall occupant load –See 248 CMR for loading factors –Calculate number of toilets for m/f –Draw up in plan –Show dimensions, clearances
Toilets Table and chair seating Bench seating Chair only seating 6’
drawings: Calculations Floor plans at ½”, fixtures and clearances and dimensioned, noted Elevations at ½”, fixtures and clearances and dimensioned, noted
Calculating Occupant Load Use Revit, if you dare 1.Create/import Occupancy Calculations schedule 2.Indicate specific occupant load for each room 3.Create 1/32” scale Occupancy Plan and add color scheme to show graphically
Or, use Excel spreadsheet
reminder: Life Safety diagrams due next week