Build DWV and gas riser diagrams in minutes. Auto-sized pipes. Code-compliant fixture units. No CAD to learn — and it's completely free.
Add water closets, lavs, sinks, showers, and more from the sidebar. Drag to position. Floors stack automatically.
Hit Calculate. WSFU totals, drainage fixture units, water service sizing — all from the latest NJ plumbing code tables.
Save to your account, share via link, or download a clean permit-ready PDF. Open it again from any device.
Drainage / waste / vent diagrams with fixture-unit calculations and auto pipe sizing per NJ code.
Per-segment pipe sizing, BTU totals, low & high pressure systems, multiple meters supported.
Every riser saves to your account with a shareable link. Open it from any device, pick up where you left off.
Stack-based undo. Coarse-grained so a drag is one step, not fifty. Never lose work to a misclick.
Clean, print-ready vector PDF sized for permit submittal — crisp at any zoom, with selectable text.
Smart NJ-area autocomplete with proper boroughs, towns, and ZIP codes. Matches what your inspector expects.
A DWV riser diagram (drain, waste, vent) is a vertical schematic of a building's plumbing drainage system. It shows fixtures, drain lines, vent lines, and pipe sizes on each floor. Most plumbing permits in New Jersey require a DWV riser as part of the submittal.
A gas riser diagram shows how gas piping runs from the meter to each appliance, with pipe sizes and BTU loads on each segment. Required for most permits involving new gas appliances, water heaters, dryers, or piping changes.
Yes. Fixture units (WSFU and DFU), water service sizing, and gas pipe capacity tables are based on the New Jersey plumbing and gas codes. RiserTool is a design resource — verify all output against your local code before submitting permits.
No. RiserTool runs in your browser. You add fixtures from a sidebar, drag them to position, and the tool auto-sizes pipes. No AutoCAD, Revit, or other CAD software required. Most users build their first riser within 5 minutes.
Yes. Each saved riser gets a unique link you can bookmark, share with a colleague, or open from any device. You can save up to 5 risers of each type — DWV and gas — on your free account.
Yes — RiserTool is free. You get the full editor, NJ-code auto-sizing, vector PDF export (no watermark), and up to 5 saved risers of each type.
Plumbing contractors, estimators, and project managers in New Jersey who do their own permit drawings. If you currently hand-draw your risers, RiserTool gets you a clean, code-sized diagram in a fraction of the time.
The tool currently uses NJ code values for fixture units and pipe sizing. NY and PA support is on the roadmap. The geometry and editor work fine for any jurisdiction; you'd just need to verify the sizing values yourself.