What is the minimum height for a laundry drain?

Author: Deondre Sipes  |  Last update: Wednesday, April 23, 2025

In order for the drain hose on your Top Load Washer to function properly, the drain must be at least 30" up from the floor and less than 8 feet high. In order for the drain hose on your Front Load Washer to function properly, the drain must be at least 24" up from the floor and less than 8 feet high.

How short can a standpipe be?

Standpipes shall extend not less than 18 inches (457 mm) and not greater than 42 inches (1067 mm) above the trap weir. ❖ A standpipe is typically used for capturing the waste flow from a pumped discharge plumbing appliance such as a dishwasher or a clothes washer.

What is the code for washing machine drain?

406.2Waste connection. The waste from an automatic clothes washer shall discharge through an air break into a standpipe in accordance with Section 802.4. 3 or into a laundry sink. The trap and fixture drain for an automatic clothes washer standpipe shall be not less than 2 inches (51 mm) in diameter.

What is the minimum height for a drain?

Discharge/drain hole (vertical): 16-20 inches from floor. Fixture (side to side buffer): 15 inches minimum from centerline, 20 inches recommended.

What height should a washer hookup be?

Preparing for Installation

Remember to install above the water height of the washer. This is typically 42 in. from the floor to the top of the outlet box.

Completing the Laundry Room Plumbing [TirolerInn]

What is the minimum height for washing machine drain?

In order for the drain hose on your Top Load Washer to function properly, the drain must be at least 30" up from the floor and less than 8 feet high. In order for the drain hose on your Front Load Washer to function properly, the drain must be at least 24" up from the floor and less than 8 feet high.

What is the best height for a washing line?

The general guide is to place the clothesline about 100mm -150mm above the primary users head height. Do NOT place the clothesline too high either as this will make closing the clothesline too hard as most fold down clotheslines need to be pushed up in order for them to close down. Wall mounting pitfalls.

Should washer drain hose be higher than washer?

To be safe, you should always raise the drain hose above the level of the washing machine.

How high should a washing machine P-trap be from the floor?

No trap for a clothes washer standpipe receptor shall be installed below the floor, but shall be roughed in not less than 6 inches (152 mm) and not more than 18 inches (457 mm) above the floor.

How shallow can a drain be?

Low profile channel drainage is simply a channel drainage that is not as deep. Typically they're 130mm deep, but a low profile section can be as shallow as 70mm.

What are the requirements for a laundry room drain?

Laundry Room Plumbing Code: Floor Drain

If you choose to install one, the drain pipe must have a minimum diameter of two inches. The drain opening, which must have a removable strainer, can't be under a fixture. The floor needs to slope a minimum of a 1/4-inch per foot toward the drain.

Does a washing machine drain need an AP trap?

Install a P Trap

A P trap is a necessary part of the plumbing for a washer. It's a U-shaped piece of piping between the appliance and the sewer line. After water drains out of the washer, the P trap's shape holds enough water to create a barrier between the house and the sewer line.

What is the height of the standpipe on a clothes washer?

The standpipe for the clothes washer must be trapped. The standpipe height should be at least 18 inches (457 mm) and no more than 42 inches above the trap weir.

At what height is a standpipe required?

1Height. In other than Group R-3 and R-3.1 occupancies, Class III standpipe systems shall be installed throughout at each floor where any of the following occur: 1. Buildings where the floor level of the highest story is located more than 30 feet (9144 mm) above the lowest level of fire department vehicle access.

What if my washer standpipe is too short?

If your standpipe is too short, you have two options. The first is to install a taller standpipe. The second is to add a standpipe extension. A taller standpipe will provide the necessary height for proper drainage, while an extension can be attached to your existing standpipe to achieve the same results.

What height should laundry drain be?

Older residential codes allowed for 1 ½” standpipes, but modern washing machines require a larger size. Your laundry standpipe must extend past your washer's overflow line, typically reaching a height of 30-36” or 18”-30” above the trap.

How to run a washing machine drain outside?

Use a freestanding standpipe. A freestanding standpipe is a drainage option that allows you to maintain your washing machine's mobility while ensuring that wastewater is safely disposed of. The standpipe is installed outdoors and is connected to the washing machine's discharge hose.

Can a washer and toilet share the same drain?

Your drains are connected – One of the main reasons your toilet gurgles when your washer machine drains is because your washer machine is connected to the toilet drain. This isn't uncommon. Your washing machine might have been placed in between your toilet and sewer stack.

What happens if washing machine drain is too high?

Unfortunately, any issue with the drainage process can cause an overflow of the drain, resulting in water leaking out all over your floor and a handful of other potentially expensive problems, like a ruined floor, mold growth, and damaged sheetrock and insulation.

Does a washing machine drain need a vent?

Eliminate Laundry Room Odors with Maplewood's Proper Drain Venting Services. All plumbing fixtures—including washing machines—must be vented.

Does a washing machine waste pipe need to be high?

The drain hose should be connected to the standpipe at the correct height for it to work properly. Ensure the highest point of the water drain hose is a minimum of 40cm and a maximum height of 100cm from the floor.

How high should washer hookups be?

The standard washer box height is 42 to 48 inches. The washer box height should be easily accessible for the average homeowner. Local building codes may dictate the location of a washer box.

What is the minimum height for a washing machine outlet?

Once you've selected the right washing machine outlet box for your situation, it should be installed at a height where the flood level rim (or the top of the drainage outlet) is 32” to 34” above the finished floor.

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