Quick Answer: Auto count fixtures, pipe runs, and valves from your plumbing drawings. CyanBuild reads your plumbing plans, counts every fixture, valve, and cleanout by symbol, and measures pipe runs in linear feet by pipe type, copper, PEX, PVC, CPVC, cast iron. Each line item carries a confidence flag so your estimator knows what to verify.
Plumbing takeoff is the process of measuring every quantity on a plumbing plan, the units your trade actually bills on. Done by hand it means counting symbols one by one and tracing runs with a scale wheel, which is slow and full of errors. AI reads the same drawings in seconds and reports the same quantities, with the math shown for every number.
What Trade Specific Takeoff Means
Plumbing work sits in CSI Division 22, and it splits cleanly into two systems that get taken off separately, the supply side and the waste side. Supply is measured in linear feet of copper, PEX, CPVC, or PVC, sized to feed the fixtures. Waste and vent, the DWV system, is measured in linear feet of cast iron, PVC, or ABS, sized to drain them. A trade aware takeoff tool keeps those two systems on separate line items, because they price differently, install with different crews, and get rough inspected at different points in the schedule.
Trade specific takeoff means the software knows that a wall hung water closet is a different fixture unit count than a floor mounted one, that a cleanout at the base of a stack is not the same as a floor drain, and that the riser diagram on sheet P201 controls the pipe sizing on the floor plans. Without that knowledge you are left counting fixtures on a PDF and typing pipe lengths into a spreadsheet, which is the manual workflow takeoff software is supposed to replace.
What Counts on the Drawings
A plumbing set typically includes plumbing floor plans, riser diagrams, fixture schedules, and detail sheets. The quantities live across all of them. On the floor plans you count fixtures by symbol, the toilet, lavatory, shower, service sink, water heater, floor drain, and cleanout, and you trace the supply and waste runs to scale. The riser diagrams tell you the vertical pipe, the sizes, and the connections between floors. The fixture schedule gives you the make and model behind each fixture symbol on the plan, which is what drives the unit price.
Fittings are the part most estimators undercount by hand. A 100 foot run of 3 inch cast iron is not just 100 feet of pipe. It includes the couplings, the elbows at every direction change, the tees at every branch, the cleanouts at the code required intervals, and the hangers at the code required spacing. A takeoff tool that reports pipe length but ignores the fittings and hangers leaves you short on the order and short on the bid, because fittings and hangers are a meaningful share of the plumbing material cost.
What Good Takeoff Software Does for This Trade
Good plumbing takeoff software reads the scaled PDF or DWG, recognizes the fixture symbols on the plan, and matches them to the fixture schedule so a wall hung water closet tagged WC1 on the plan pulls the WC1 row from the schedule, with the right make and model, instead of making you flip sheets. It traces supply runs and waste runs separately, reports pipe by the foot broken out by type and size, and applies the fitting counts based on the run geometry, the direction changes, the branches, and the code required cleanouts and hangers.
The better tools also keep supply and DWV on separate line items, with the riser diagram pipe folded into the totals by floor, so the takeoff reads the way the plumber buys and installs the job. That structure is what lets the estimator hand the takeoff to a project manager or a foreman without re explaining it, because the line items already match the way the field thinks about the work.
Must Have Features
- Fixture symbol recognition tied to the schedule. Count toilets, lavatories, showers, sinks, water heaters, floor drains, and cleanouts by matching plan symbols to the fixture schedule.
- Supply and DWV measured separately. Linear feet of copper, PEX, CPVC, and PVC for supply, and cast iron, PVC, and ABS for waste and vent, on separate line items by type and size.
- Fitting and hanger counts from the run geometry. Couplings, elbows, tees, cleanouts, and hangers applied from the run layout and the code spacing rules, not counted by hand.
- Riser diagram integration. Vertical pipe from the risers folded into the totals by floor, sized to the riser callouts.
- Confidence flags on every line. High, Medium, or Low per item, so review time goes to the counts that need it.
- Sheet and location traceability. Every quantity links back to the sheet and grid coordinate it came from, for a defensible bid.
What to Watch Out For
The most common gap is a tool that counts fixtures and measures pipe length but ignores the fittings, hangers, and accessories. A fixture count and a pipe length is the easy part of a plumbing takeoff. The fittings, hangers, valves, cleanouts, and insulation are where the hours and the dollars actually live, and a tool that stops at pipe length leaves you building the rest of the order by hand.
Watch for tools that require a vector CAD file. Most plumbing bids start as a scanned PDF, and if the software cannot read a raster sheet it will not work on a large share of real projects. Ask whether the tool reads scanned and vector sheets equally, and whether it degrades cleanly to manual takeoff when the sheet quality is poor. Also confirm the supply and waste split is real and not just two columns in the same export, because a single combined pipe list is harder to buy against and harder to rough inspect against.
How CyanBuild Fits
CyanBuild reads PDF, DWG, DXF, and image files, including scanned sheets, and counts every fixture, valve, and cleanout by symbol, matched to the fixture schedule. It measures supply and DWV runs separately in linear feet by pipe type and size, applies the fitting, hanger, and cleanout counts from the run geometry, and folds the riser pipe into the totals by floor. Every line item carries a confidence flag tied to the sheet and grid location, and the export is a line item takeoff ready for pricing, with the math shown for every quantity.
Putting It Together
Plumbing takeoff is two trades in one, the supply side and the waste side, and a good takeoff tool treats them as two. The fixtures are the easy part. The value is in the fittings, the hangers, the riser pipe, and the schedule cross references, and in keeping supply and DWV on separate line items that match the way the job is bought and installed. Pick software that does the fixture count, the pipe length, and the fitting and hanger math in one pass, flags the items it is less sure about, and shows the math behind every number. That is what turns a takeoff from a manual count into a defensible bid, and it is what lets your estimator spend the saved hours on coordination and sequencing instead of clicking symbols on a PDF.