How to filter the tool catalog and what each of the five live tools does.
The tools catalog
All tools live at /tools. You can narrow the list by:
Discipline — MEP, Electrical, Mechanical, Plumbing, and so on
Access — all, free, or pro
Type — mini (single-page calculators) or new
Free-text search — press / anywhere on the page to jump straight to the search box
Live tools
Tool
Code
Discipline
Plan
Plant Room Studio
MEP-01
MEP
Pro
Ceiling Coordination Studio
MEP-02
MEP
Pro
Voltage Drop & Cable Size Checker
ELC-01
Electrical
Free
Duct Pressure Drop Calculator
MEC-01
Mechanical
Free
Water Pipe Pressure Drop & Pump Head Calculator
PLB-01
Plumbing
Free
Plant Room Studio — design MEP plant rooms in 2D and 3D: MV switchgear, LV panels, ELV/ICT
racks, pumps and AHUs, with live clearance validation.
Ceiling Coordination Studio — plan, route, validate and auto-arrange above-ceiling MEP
services.
Voltage Drop & Cable Size Checker — check LV voltage drop using IEC, BS 7671 and NEC datasets
or custom impedance, with the formula, table citation and assumptions shown.
Duct Pressure Drop Calculator — estimate single-duct-run pressure drop: Darcy–Weisbach
friction (Swamee–Jain), Huebscher equivalent diameter for rectangular ducts, and fitting losses
via Sigma K or a fitting schedule, with velocity, Reynolds number, flow regime and Mach shown.
Water Pipe Pressure Drop & Pump Head Calculator — formula-only plumbing hydraulics: velocity,
Reynolds number, Darcy–Weisbach friction loss, user-entered fitting K minor loss, total pump head
and pump power. No pipe-size, roughness, fitting or fixture-unit tables.
Each calculator shows its formulas and assumptions rather than hiding them behind a result.
The three Free tools carry the mini tag, meaning a single-page calculator you fill in and read
the result from immediately.
Tool codes follow XXX-YY: a three-letter discipline prefix (MEP, ELC, MEC, PLB, …)
followed by a two-digit catalogue number within that discipline.
Free vs Pro tools
If you're signed out and open a Pro tool, you'll hit a sign-in wall. If you're signed in on the
Free plan and open a Pro tool, you'll see an upgrade prompt instead. Free tools are open to
everyone, signed in or not — see /docs/getting-started for what a guest can and can't do.
Coming soon
MEP Project Hub (PM-01) is shown as a coming-soon card in the catalog. No release date is
displayed.
Pinning tools
Once signed in, the tool cards under Quick launch on your dashboard have a
Pin tool control. Pinned tools appear first there, followed by the tools you used most
recently. Pins are stored with your account, so they follow you across devices.
Tool-specific docs
Each tool has its own documentation, reachable from the Help menu inside the tool
(Documentation, Keyboard shortcuts, Report an issue, About this tool) or from
/tools/<tool-id>/docs.