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Construction blueprint to Google Sheets automation with VLM Run and Google Drive

ShahrearShahrear
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2/3/2026
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Automatically process Construction Blueprints into structured Google Sheets entries with VLM extraction

What this workflow does

  1. Monitors Google Drive for new blueprints in a target folder
  2. Downloads the file inside n8n for processing
  3. Sends the file to VLM Run for VLM analysis
  4. Fetches details from the construction.blueprint domain as JSON
  5. Appends normalized fields to a Google Sheet as a new row

Setup

Prerequisites: Google account, VLM Run API credentials, Google Sheets access, n8n. Install the verified VLM Run node by searching for VLM Run in the node list, then click Install. Once installed, you can start using it in your workflows.

Quick Setup:

  1. Create the Drive folder you want to watch and copy its Folder ID

  2. Create a Google Sheet with headers like: timestamp, file_name, file_id, mime_type, size_bytes, uploader_email, document_type, document_number, issue_date, author_name, drawing_title_numbers, revision_history, job_name, address, drawing_number, revision, drawn_by, checked_by, scale_information, agency_name, document_title, blueprint_id, blueprint_status, blueprint_owner, blueprint_url

  3. Configure Google Drive OAuth2 for the trigger and download nodes

  4. Add VLM Run API credentials from https://app.vlm.run/dashboard to the VLM Run node

  5. Configure Google Sheets OAuth2 and set Spreadsheet ID and target sheet tab

  6. Test by uploading a sample file to the watched Drive folder and activate

Perfect for

  • Converting uploaded construction blueprint documents into clean text
  • Organizing extracted blueprint details into structured sheets
  • Quickly accessing key attributes from technical files
  • Centralized archive of blueprint-to-text conversions

Key Benefits

  • End to end automation from Drive upload to structured Sheet entry
  • Accurate text extraction of construction blueprint documents
  • Organized attribute mapping for consistent records
  • Searchable archives directly in Google Sheets
  • Hands-free processing after setup

How to customize

Extend by adding:

  • Version control that links revisions of the same drawing and highlights superseded rows
  • Confidence scores per extracted field with threshold-based routing to manual or AI review
  • Auto-generate a human-readable summary column for quick scanning of blueprint details
  • Split large multi-sheet PDFs into per-drawing rows with individual attributes
  • Cross-system sync to Procore, Autodesk Construction Cloud, or BIM 360 for project-wide visibility

Google Drive to Google Sheets Automation

This n8n workflow automates the process of reacting to new files in Google Drive and potentially processing them further, with the capability to log information into Google Sheets.

What it does

This workflow is designed to:

  1. Monitor Google Drive: It listens for new files or changes in a specified Google Drive folder.
  2. Trigger on New File: When a new file is detected in Google Drive, the workflow is activated.
  3. Process File Information: It retrieves details about the newly added file from Google Drive.
  4. Log to Google Sheets: It then takes the information about the new file and appends it as a new row in a designated Google Sheet.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running instance of n8n.
  • Google Account: A Google account with access to Google Drive and Google Sheets.
  • Google Drive Credential: An n8n credential configured for Google Drive.
  • Google Sheets Credential: An n8n credential configured for Google Sheets.
  • Google Drive Folder: A specific Google Drive folder to monitor for new files.
  • Google Sheet: A Google Sheet where the file information will be logged.

Setup/Usage

  1. Import the Workflow:

    • Copy the provided JSON code.
    • In your n8n instance, go to "Workflows" and click "New".
    • Click the three dots in the top right corner and select "Import from JSON".
    • Paste the JSON code and click "Import".

  2. Configure Google Drive Trigger:

    • Locate the "Google Drive Trigger" node.
    • Click on it and select your Google Drive credential.
    • Specify the Google Drive folder you want to monitor for new files.
    • Choose the "Watch for new files" trigger type.
    • Activate the workflow by toggling the "Active" switch in the top right of the n8n editor.

  3. Configure Google Drive Node:

    • Locate the "Google Drive" node.
    • Click on it and select your Google Drive credential.
    • Ensure the operation is set to retrieve file details if needed for further processing (though the trigger already provides basic info).

  4. Configure Google Sheets Node:

    • Locate the "Google Sheets" node.
    • Click on it and select your Google Sheets credential.
    • Specify the "Spreadsheet ID" of the Google Sheet where you want to log the data.
    • Specify the "Sheet Name" within that spreadsheet.
    • Configure the "Operation" to "Append Row" or "Add Row".
    • Map the data from the previous Google Drive nodes to the columns in your Google Sheet (e.g., file name, file ID, creation date).

  5. Test the Workflow:

    • Save the workflow.
    • Upload a new file to the Google Drive folder you configured.
    • Observe the execution in n8n and check your Google Sheet for the new row.

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