Rough In Hights

Question 1

Lavatory
FLR?
Drain?
Supply?

Answer 1

Lavatory
FLR:
- 31” off finished floor.
- 34” off finished floor for disability accessibility.
Drain:
- 18.5” off of finished floor.
Supply:
- 21.5” off of finished floor.

Question 2

Kitchen sink
- FLR?
- Drain?
- Supply

Answer 2

Kitchen Sink
FLR:
- 36” off of finished floor.
Drain:
- 12” off of finished floor. Single compartment sinks are
permitted to be roughed in higher.
Supply:
- 26” off of finished floor

Question 3

Garbage Grinder
- mounted to what?
What supply is required?

Answer 3

Garbage Grinder
- Mounts on to sink. Electrical supply required.

Question 4

Water Closet:
FLR?
Drain?
Supply?

Answer 4

Water Closet
FLR:
- Top of overflow tube on flush valve.
Drain:
- 12” on center away from finished wall on floor for standard tank type
floor mounted, close coupled water closets.
- 10” from finished wall for flush valve water closets.
This dimension may change with different types of manufacturers.
Supply:
From Wall: 6” up off of finished floor, 6” to left of center of water closet.
Floor: Centered with supply inlet of water closet

Question 5

Bathtub
- FLR?
- Drain?
- Supply?
- Spout Outlet

Answer 5

Bathtub
FLR:
- Top of tub. Typically 15”.
Drain:
- Center of narrow portion of tub. 14”-17” from long wall to
center. Right or left hand configurations.
Supply:
- Faucet height 10”-13” above spout..
Shower outlet: 78” / 6.5’ off of tub floor.
Spout Outlet:
- 4” above FLR.
Typical Length: 60” / 5’.

Question 6

Shower
- FLR?
- Drain?
- Supply?
- Shower Outlet Hight

Answer 6

Shower
FLR:
- Top of shower lip.
Drain:
- Typically center of shower.
Supply:
- Faucet height 43”-55” off of shower floor.
Shower outlet:
- 78” / 6.5’ off of shower floor.

Question 7

Bidet
FLR:
Drain:
Supply:

Answer 7

Bidet
FLR:
- Top of Bidet.
Drain:
- See Manufacturers Specifications.
Supply:
- See Manufacturers Specifications.

Question 8

Clothes washer
FLR?
Drain?
Supply?
Bottom of trap?

Answer 8

Clothes Washer
FLR:
- Lid of washer for top Load / Door for front load.
Drain:
- 41” off of finished floor.
Supply:
- Hot and cold hose bibs 51” off of finished floor.
Bottom of Trap:
- 6” off of finished floor

Question 9

Laundry Tray
FLR:
Drain:
Supply:

Answer 9

FLR: typically 32” from finished floor depending on manufacturer.
Drain: 9” – 11” off of finished floor.
Supply: 16” off of finished floor. 20” braided flexes required.

Question 10

Dishwasher

Answer 10

Per manufacturing specifications

Question 11

Lawn Service
Typically roughed in on center with what?

Answer 11

Typically roughed in on center with floor joists.

Question 12

Floor drain:
FLR:
Minimum drain size

Answer 12

FLR: Floor.
Drain: Minimum 2” in size.

Question 13

Ice maker fridge supply
FLR:
Drain:
Supply:

Answer 13

FLR: Tray Base.
Drain: Outlet Base Tray.
Supply: 6” off of finished floor. Recessed Box for valve.

Question 14

Hot water tank
FLR:
Drain:
Supply:

Answer 14

FLR: T&P Outlet Piping.
Drain: Maximum 12” off of finished floor.
Supply: Must have a shutoff valve.