What is rough in plumbing height?

Rough-in plumbing is usually placed at a somewhat lower height, between 18 and 20 inches, to accommodate varying counter heights and sink depths and leave plenty of space for the P-trap and necessary connections.

How high should a toilet supply line be?





8 1/4 inches

Supply line (height): Ideally, the toilet’s water supply line enters the room at 8 1/4 inches above the floor. More broadly, this cold-water-only pipe creates one hole between 5 and 10 inches above the floor.

When installing a drain line how many inches should the drain line be installed off the floor?

Before installing a new sink in your bathroom vanity, mark off the water and drain lines according to industry standards. The water supply line runs out of the wall into a hole in the back of the vanity, typically placed at a height of 22 to 24 inches from the finish floor.

How far is the water line from the toilet?

Water Supply Line





Install a ½ inch copper water line to the location of your new toilet. Insert the line through the bottom plate on the wall, approximately 8 inches to the left of the toilet’s center line. Connect this supply line at the water line attached to the sink.

How far should bathtub drain be from wall?

Bathtub Drain Measurements

The drain hole should be a minimum of 12 inches away from the wall and 9 inches in scope. To rough in the drain, use a 1.5-inch pipe.

What are the rough in measurements for a bathtub?

In general, standard dimensions will give you a rough figure for the size of the bathtub. However, they all vary depending on the shape and type of bathtub you are looking to purchase. For a typical standard, wall-wall bathtub, the measures will be roughly 60 inches long, 30-32 inches wide.

Can you replace a 14 inch rough in toilet with a 12 inch rough in toilet?



Replace a 14-inch rough-in toilet with a 12-inch rough-in toilet. You can definitely replace a toilet with a rough-in of 14 inches with one with a rough of 12 inches. The problem with this method is that a 2-inch gap will be left between the toilet tank and the wall.

Should a toilet tank touch the wall?

There is no hard-fast rule about whether a toilet should touch the wall, as it is a matter of personal preference. Some people are okay with a toilet tank’s top touching the back wall, while others desire a minimum of one inch of space between the commode and the back wall.

How do I know if my toilet is a 10 or 12 rough?

If your toilet has four bolts rather than the standard two, you’ll measure to the center of the rear bolts. The standard rough-in measurements are 10, 12 and 14 inches. If your measurement is in between these intervals, round your number down to the nearest standard measurement.

How far is shower drain from wall?



You will need to cut a hole in the floor at the drain end of the tub to position the tub drain and install it. The hole should be at least 9 inches wide and 12 inches from the wall.

Should toilet flange be flush with floor?

The toilet flange should not be flush with the floor, but it must be level to allow for a correct installation. A difference in height between one side of the flange and the other could compromise your toilet’s balance.

How do you rough in plumbing?

Steps for Roughing in your Plumbing:

  1. Step 1)Mark Key Locations. Determine where all the toilets will be and mark its center on the wall and measure out 13 1/2 inches from that point. …
  2. Step 2) Cut the Drain Hole. …
  3. Step 3) Drain Pipe Installation. …
  4. Step 4) Supply Line Installation.

What comes first plumbing or framing?



Mechanical Trades. Following framing are the mechanical rough-ins of your new home Plumbing, HVAC, electrical, media wiring, gas, and fireplace installations occur. If on a basement, we will have our plumbers come in and install rough plumbing before framing. If on a slab, rough in happens after framing.

How do you layout plumbing?

To make a plumbing plan, first draw all fixtures to scale size and make sure they are not too close together. Mark the drain lines and vents for the fixtures, then add the supply lines. Make riser drawings to show vertical pipe runs as well.