# Finding a tool

Source: https://meptools.com/docs/tools-catalog/

## 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](/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`.