What is a Rough-In? A rough-in is the first step to a finished and fully furnished basement. It is the bringing of all the lines like plumbing, electricity and ducts to a certain area of your home.

What are the three pipes in my basement floor?

Basics Of The Plumbing Beneath Your Basement Floor

  • Sump Pump Pit. If your basement starts to flood, the sump pump is designed to remove floodwater before it can cause too much damage. …
  • Water Supply Line. …
  • Main Sewer Line.





What is a rough-in?

Rough-in is the stage of a construction project when the various mechanical, electrical, and plumbing lines are brought in. Once the framing is up, the rough-in stage of construction begins. This is when lines are laid out, but final connections are not made until other stages of the project are completed.

What is a drain rough-in?

A plumbing rough-in means that all water supply and drain pipes have been run through bored holes in the studs and other framing members and that all pipe connections have been made.

Can a shower drain be connected to a toilet drain?

In short, it is possible to connect the toilet drainage line and the shower drainage line, as long as they both have separate waste trap arms. However, do note that combining them may also lead to blockages, which can cause smells to come from certain drains.

What comes after rough in?





After our rough in mechanical work is installed and framing is finished, the home undergoes its second inspection, called the framing inspection.

What does a 12 inch rough in mean?

12-inch Rough-in Toilet. If you’re not familiar with the term “rough-in,” the experts at PlumbersStock explain that it’s the location where the water outlet is (in most cases) beneath the toilet. The actual rough-in measurement is the distance between the center of this outlet to the wall facing the back of your toilet …

Can a toilet and washing machine share the same drain?

Some buildings have multiple waste lines that are connected to different appliances. However, if you’ve already taken note of the fact that your toilet gurgles whenever the washer drains, they’re definitely using the same system. That means that they also share the same vent stack.

Can a toilet and shower share a vent?

So yes the shower can also be vented by the wet vent along with the toilet. There is one major stipulation when wet venting multiple fixtures when a toilet is one of them: the toilet must be the last fixture connected to the wet vent.

Can two toilets share the same drain?



Most houses have more than one toilet, and if they are on the same side of the house, their waste lines can usually tie into the same stack. If they are on opposite sides, however, each may need its own stack.

What are rough in valves?

The rough-in valve is the heart of system. This is the part of your shower system, in-wall faucet or deck mounted tub filler that lives behind the wall, precisely controlling water temperature and volume.

How do you measure rough in?

The rough-in measurement of a toilet refers to the span between the wall behind the toilet and the center of the waste pipe. To measure the rough-in for your toilet, measure from the wall behind the toilet to the middle of the bolt caps (the caps holding your toilet to the floor).

What is the rough in distance for a toilet?



12 inches

The standard toilet rough-in is 12 inches, but don’t assume you have a 12” rough-in without measuring! Some older homes come with 10” or 14” rough-in sizes. You may also find 10” rough-in sizes in powder rooms, half baths, or other small bathrooms to save space.

What is the minimum distance from toilet to wall?

Standard Toilet Placement



The minimum distance between the toilet and a finished wall on either side is 15 inches. This is measured from the toilet’s centerline, not from the outside edge. The plumber determines the actual distance when he sets the toilet flange in the floor.

How far can a toilet be from a vent stack?

6 feet



According to the UPC, the distance between your trap and the vent should be no more than 6 feet. In other words, for the vent to work properly, it needs to feed into the drain line within 6 feet of the trapways that connect to it.

How far is a shower drain from the wall?

Rough-In Dimension Terminology

Toilet Shower/Tub
Discharge/Drain Hole from Back Wall 12 1/2″ 14″
Discharge/Drain Hole (Vertical) 0″ 0″
Fixture (Side to Side Buffer) 15″ to 18″ min 18″ min
Fixture (Front Buffer) 21″ min 18″ min

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.

Can you use a 12 inch rough in toilet?

A 12 inch rough in is the most common measurement in bathrooms. This size allows for the most variety in the shape of the bowl and style of the toilet you purchase. Even though this is the most standard measurement, don?t forgo measuring (at least twice) before buying a new toilet.

How do I make sure my new toilet will fit?



If the base of the new toilet is shorter than the distance between the rear bolt holes and the wall, it should fit. In small bathrooms where space is tight, also measure from the sides of the flange bolts to the sidewalls or other objects to assure side-to-side clearance.

What is better a 1 piece or 2 piece toilet?

One piece toilets are typically heavier and easier to clean, and there’s less space for bacteria to grow. Because two piece toilets feature a detachable tank, they’re more customizable for preferred styles and heights. Both styles can include bells and whistles like bidet attachments or low-flow energy saving.

How do you install rough plumbing in a bathroom?

Quote from the video:
Quote from Youtube video: I'm using a four-inch closet flange here the center of the flange is roughed in 12 inches measured from the finished. Wall. If you're measuring from an unfinished wall add in your wall. Thickness.