Web-Based Labor Estimating Manual (WebLEM)
All-new web-based version of MCAA’s popular Labor Estimating Manual

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Ready to become a WebLEM Subscriber?

MCAA and MSCA contractor members receive free access to the WebLEM as a benefit of membership. If you have not received your User ID Number and password, please contact Dariush (Nick) Nikpourfard. For membership information, contact Jan Grillo. If you are a non-member you may subscribe to the WebLEM by downloading and completing the following subscription agreement form.


What is WebLEM?

WebLEM is the next generation of the popular Labor Estimating Manual (LEM), considered the industry’s most reliable, authoritative source for comprehensive labor units for typical project tasks. This new, web-based product contains the detailed labor data contractors have come to depend on. With the WebLEM, you can quickly search for and retrieve information. The WebLEM also offers you the capability to export data into Microsoft Excel or CSV format for added flexibility. Data in the WebLEM is reviewed and updated periodically to reflect the latest products and joining methods.

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Discover the Power of the WebLEM!

  • Quickly search and retrieve data
  • Export data into Microsoft Excel or CSV format
  • Access Up-to-date labor units on the latest products and joining methods