Takeoff & Estimating — Plumbing & Fire Protection

Plumbing Fixtures

Toilets, sinks, urinals and other water-using devices, counted each from the schedule.

Quick Answer

Plumbing fixtures are the devices that receive water and discharge waste, such as water closets, urinals, lavatories, sinks, showers and drinking fountains. Estimators count them each from the plumbing fixture schedule and plans, then add carriers, faucets, traps and rough-in connections as separate items.

The Full Picture

A plumbing fixture is a receptacle or device that is connected to the water supply and the drainage system. Water closets, urinals, lavatories, kitchen and service sinks, showers, bathtubs, drinking fountains and floor drains are the usual examples. Appliances such as dishwashers and washing machines are related but usually handled under a separate heading. Fixtures are made of vitreous china, stainless steel, enameled cast iron, fiberglass, solid surface and other materials, and the spec section names the manufacturer, model and finish.

How many fixtures a building needs is a code and design decision. The plumbing code sets minimum counts by occupancy and occupant load, and the engineer shows the result as a plumbing fixture count and a fixture schedule. Water use is also limited by federal rules. For example, 10 CFR 430.32 sets a federal limit of 1.6 gallons per flush for most toilets and a 1.0 gallon per flush limit for urinals, while WaterSense toilets use 1.28 gallons per flush or less. Accessibility rules affect which fixtures are specified and how many are accessible, and the ADA Standards chapter 6 covers water closets, urinals, lavatories and sinks.

On the drawings, the fixture schedule is the source of truth. It lists a tag for each fixture type (for example a water closet, urinal, lavatory), the description, the manufacturer and model, connection sizes for waste, vent, cold and hot water, and notes such as the carrier or mounting height. The plans then show the tags at each location, and the riser diagram and details show how each is connected. Estimators count each tag on the plans and tie the count back to the schedule and to the fixture count the engineer lists, since a mismatch usually signals a drawing error to ask about.

The unit is each, by fixture type. A complete fixture install is more than the fixture itself: the faucet or flush valve, supply stops, supplies, trap, carrier or support, seat, mounting hardware and rough-in connections are separate lines or are priced as an assembly, depending on the estimator's method. Furnished-by-owner fixtures, accessible-height variations and special finishes change the price. Typical mistakes are to count fixtures from the floor plans without reconciling to the schedule, to omit carriers for wall-hung fixtures, and to price a standard fixture where the schedule calls for a specific model or an accessible version.

Real Examples

→Worked takeoff: counting from the schedule: A restroom plan shows tags for 12 water closets, 4 urinals, 10 lavatories, 2 service sinks and 2 drinking fountains. Total fixtures = 12 + 4 + 10 + 2 + 2 = 30 each, counted by type. The estimator then adds 12 flush valves or tanks, 10 lavatory faucets, 4 urinal flush valves and wall-hung carriers where the schedule calls for them.
→Schedule and plan disagree: The fixture schedule lists 10 lavatories, but the floor plans show 11 lavatory tags. The estimator carries the higher plan count in the base bid and sends an RFI, since one of the sheets has an error.
→Owner-furnished fixtures: The specification says the owner furnishes the water closets and the contractor installs them. The estimator removes the fixture material cost for those items but keeps the carrier, rough-in, trap and installation labor.

Common Misconceptions

People assume: The code fixture count is the number to price.

Actually: The code gives the minimum the design must meet. The estimator prices the fixtures drawn on the plans and listed in the schedule, and any difference is raised with the design team.

People assume: A fixture price includes everything needed to connect it.

Actually: Faucets, flush valves, stops, supplies, traps, carriers and rough-in are often separate. Which of them are in the fixture price depends on the spec and the estimator's assemblies.

People assume: All lavatories or toilets are interchangeable for pricing.

Actually: Model, mounting, material and accessibility features change cost, so count by the tag in the schedule rather than by the generic type.

Does MeltPlan Solve This?

Partially — adjacent

Fixture counts by type are tallied from the plumbing plans and schedules, and MeltPlan's takeoff service covers that counting work: AI pulls quantities from plans and US-based experienced estimators review and adjust them. Reconciling the count against the code, the engineer's fixture count and the owner's requirements stays with your estimating team.

Get fixture counts tallied from your plumbing plans →

Frequently Asked Questions

What counts as a plumbing fixture?

Water closets, urinals, lavatories, sinks, showers, bathtubs, drinking fountains and similar devices that take in water and discharge waste. Floor drains are often counted with them, and appliances are usually separate.

How are plumbing fixtures counted in a takeoff?

Each, by fixture type, from the fixture schedule and the plan tags. Related items such as faucets, flush valves, carriers and traps are added as their own lines or assemblies.

Who decides how many fixtures a building needs?

The plumbing code sets minimums by occupancy and occupant load, and the engineer designs the count and shows it in the fixture schedule. The estimator prices what is drawn.

What is a fixture schedule?

A table on the plumbing drawings listing each fixture tag, description, manufacturer and model, and connection sizes. It is the main reference for counting and pricing fixtures.

Do fixtures include the faucet and trap?

Not necessarily. The faucet, supplies, trap and carrier are often listed separately in the schedule or the spec, so check what each fixture tag includes before pricing.

Related Terms

More Takeoff & Estimating — Plumbing & Fire Protection Terms

Sources

  1. 10 CFR 430.32: Energy and water conservation standards (Cornell LII)
  2. U.S. EPA WaterSense: Residential toilets
  3. U.S. Department of Justice: 2010 ADA Standards for Accessible Design
  4. International Code Council: 2021 International Plumbing Code (IPC)

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