CUTTING AND NOTCHING
DRAINAGE FITTINGS
DFU'S
DEFINITIONS
ROUGH IN LOCATIONS
100

what % can be drilled in a non bearing wall?

60%

100
what position can you use a long sweep?
Any
100
floor drain with 3" trap?
5
100
Stack
a general term for any vertical line of soil, waist, vent or inside conductor piping that extends through at least one story with or without offsets.
100
What is the minimum distance off the sidewall to the center of a non handicap toilet?
15 inches
200

what % of wood can be drilled from a bearing wall

40 percent

200
Can you use a tee wye on it back for drainage?
No
200
LAV
1
200
slope
the fall of a line of pipe in reference to a horizontal plane.
200
What is the distance from the sidewall to the center of the handicap toilet?
16-18 inches
300
when drilling threw the top or bottom plate what size nail plate must be used?
4"x6''
300
back to back water closets can NOT discharge into_______
double tee wye.
300
Drinking Fountain
1/2
300
trap
a fitting or device that provides a liquid seal to prevent emission of sewer gases.
300
How much clearance space do you need in front of a fixture?
21 inches
400

when notching a floor joist, where are you not allowed to notch?

middle 1/3d of the span

400
At what size do you have to increase from a short sweep to a long sweep on a horizontal change in direction?
above 2"
400
Emergency floor drain
0
400
cleanout
an access opening in the drainage system utilized for the removal of obstructions.
400
What is the maximum rim height of a handicap urinal?
17 inches
500
what is the minimum amount of wood that need remain after drilling?
5/8 of an inch
500

true or false: An 1/8 bend can be used in a waste stack vent

False

500
sink
2
500
building sub drain
the portion of a drainage system that does not drain by gravity into the building sewer.
500
What side does a flush handle need to be on a handicap toilet?
Opposite the sidewall
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