PVC Genius

Precision cut lengths. Built for the trench.

Exact DWV cut lengths from real Charlotte & Spears fitting data — stop guessing, stop wasting pipe, stop cutting twice.

Free Beta · Works Offline · iPhone & Android

PVC Genius

Trench Builder (Beta)

PVC Genius
DWV Pipe Length
Trench Builder · Beta
Tap here to place the main pipe
Real job · every number traces to a sheet

West Basement locker-room bathrooms

The below-slab PVC DWV waste for TOILET 047/048, LOCKERS 046/042, GROOMING 052, SHOWER 045, SHOWER 043 and SHOWERS ADA 038, read straight off the engineered drawing and built back up one piece at a time.

Watch it build
Ready — press Replay
Waste (W) — solid on P-100 Vent (V) — dashed on P-100 Outside the cut list
1. Pipe-cut list
Cut #, length, size and schedule. Tap a row to see where that piece sits on the drawing.
2. Install list
One row per cut number — the two fittings that piece glues between, and which port it lands on.
Where the drawing disagrees with itself
Surfaced, never averaged away
Sources
Fingerprinted at build time — every number above points back to one of these
Real job · fixtures → main → branches · every number traces to a sheet

Annex Bathroom DWV Demo

Watch it build
Ready — press Replay
Tap a fixture for its distance from a reference corner — north-south and east-west, never a diagonal.
Released — cut length confirmed Released with a flag — scaled or stand-in fitting Pending — withheld under an RFI, never installed here Held — outside this scope
1. Pipe-cut list
Cut #, size, schedule, confirmed length or WITHHELD with its RFI. Tap a row to see the piece on the plan and the arithmetic behind it.
2. Install list
One row per cut number — the two fittings the piece glues between, which port, and which way each fitting faces.
Open questions (RFIs)
A withheld cut names the RFI holding it. Nothing here was guessed.
Where the drawings disagree
Surfaced, never averaged away
Sizing and sources
Fixture units, the code tables they were read from, and every file fingerprinted at build time
Select Fitting
Who made this fitting?
Submit a Fitting Measurement
🎁 Beta testers who send us real measurements from physical fittings help us get the calculator exactly right. Anyone whose submission gets used gets free access to the Pro version when it launches. Thank you!
    Fitting (name & size)
    Manufacturer
    What did you measure?
    A quick photo helps a lot -- if your mail app lets you, attach one to the email before sending.
    Your name or email (so we can credit/reward you)
    Feedback & Bug Reports
    🎁 Found a bug? Let us know below. And either way — we're still nailing down a few real-world measurements, and beta testers who help solve any of these get free access to the Pro version when it launches:
      Main Pipe Size
      Main Orientation
      Reference Corner
      Reference Distance
      Center to center (inches)
      Choose a Fixture
      Branch Size
      Fixture
      Not connected yet
      Or close this and drag from the pin itself to the main or to an existing branch fitting -- wherever the line lands is what it connects to.
      Reference Dimensions
      Distance from the top reference
      Distance from the right reference
      Fixture
      Reference corner
      Field: north-south
      Field: east-west
      What Connects Below the Water Closet?
      Trench Jobs
      Fitting