What general AI can and cannot do for contractorsToday’s edition ·
ChatGPT for Construction Try Field24

Setup

How to use Field24 inside ChatGPT

Quick answer

Install the Field24 plugin from the ChatGPT directory, sign in with your phone number and the code Field24 texts you, then attach a plan set and ask for an estimate. ChatGPT runs the conversation; Field24 measures the takeoff, prices it and builds the proposal in your Field24 account.

On this page
  1. Set it up in three steps
  2. What to ask
  3. Using Claude instead
  4. Why the plugin and not the chat alone
  5. Common questions

Set it up in three steps

  1. Add the plugin. Open the Field24 plugin in the ChatGPT directory and choose Add.
  2. Sign in. Enter your phone number and the code Field24 texts you. New to Field24? Your account is created on the spot.
  3. Attach your plans and ask. Try one of the requests below.

What to ask

Create an estimate based on this set of plans
Do a takeoff for this project
Price my takeoff and build a proposal I can send

A takeoff takes 15 to 30 minutes. You do not have to wait in the chat: ChatGPT checks back and tells you when it is done, then walks you through the results.

Using Claude instead

  1. Open Settings → Connectors.
  2. Choose Add custom connector.
  3. Paste https://field24.ai/mcp, then connect and sign in with your Field24 account.

The full setup for other assistants is in the Field24 MCP docs.

Why the plugin and not the chat alone

On its own, ChatGPT estimates by eye. With the plugin, the measuring happens in Field24: lengths from the drawing's geometry, wall heights from the callouts, prices from local supplier and labor rates, and every row marked on the sheet so you can check it.

Create your Field24 account

Common questions

Does Field24 work inside ChatGPT?

Yes. Install the Field24 plugin from the ChatGPT directory, sign in with your Field24 account, and ask for an estimate with your plans attached.

How long does a takeoff take through ChatGPT?

15 to 30 minutes. ChatGPT checks back and tells you when it is ready.

Does Field24 work with Claude too?

Yes. Add https://field24.ai/mcp as a custom connector under Settings → Connectors in Claude and sign in.

Sources

  1. Field24 MCP server docs. How to connect Field24 to ChatGPT, Claude and other assistants.

Keep reading

ChatGPT for ConstructionWhat ChatGPT can and cannot do for contractors, and the purpose-built AI to use when you need a measured, priced takeoff.ChatGPT for estimatingUse ChatGPT for estimate writing and spec reading; don't use it for quantities or prices. A practical split for contractors.Claude for ConstructionClaude is a strong reader and writer for contractors, but it does not measure plans or price work. Where it helps, where it falls short, and the fix.

Last reviewed November 9, 2026. Cite as: ChatGPT for Construction, “How to use Field24 inside ChatGPT,” https://chatgpt-for-construction.com/field24-in-chatgpt/