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NECA Manual of Labor Units (MLU)

2019-2020 Edition

An estimate is only as good as the information it is based on, and the NECA Manual of Labor Units (MLU) has been the estimating resource of choice for electrical contractors since 1923. The MLU provides an experience-based reference for estimating the electrical construction labor required to install typical electrical and communications systems. 

What’s new to the MLU?

MLU 2019-2020 cover

New units for LED fixtures, 35 KV cable, and more are included in this new edition, as well as a new keyword index search to provide a better user experience when locating labor units. 

IS TIME FOR SUPERVISION INCLUDED?

NECA’s the labor units do not include any labor for supervision of any type.

All electrical construction requires more than one level of supervision, and the magnitude of supervision depends on the complexity, type, and size of each project. Because each project is unique, it is the opinion of most electrical contractors that the labor for supervision is best estimated as a separate cost item and that no part of the supervision labor be included in the material installation labor units.

What’s included in the MLU?

NECA’s labor units include: normal material handling; drawing study, measurement and layout; material installation; and normal non-productive labor.

Is time for supervision included?

NECA’s the labor units do not include any labor for supervision of any type.

All electrical construction requires more than one level of supervision, and the magnitude of supervision depends on the complexity, type, and size of each project. Because each project is unique, it is the opinion of most electrical contractors that the labor for supervision is best estimated as a separate cost item and that no part of the supervision labor be included in the material installation labor units.

What’s the difference between the three columns in the MLU?

The NECA labor unit tables include three different labor units for each item. Users of the MLU are also encouraged to consider labor units between the columns, or even lower than or exceeding the columns when appropriate. 

Normal Installation Conditions

When all of the conditions associated with the installation of an item will permit the maximum productivity of the electricians on a project, these “normal” column labor units are applicable.

Difficult Installation Conditions

When one or more of the conditions associated with the installation of an item will permit less than maximum productivity of the electricians on a typical project, these “difficult” column labor units are applicable. 

Very Difficult Installation Conditions

When one or more of the conditions associated with the installation of an item will permit substantially less than maximum productivity of the electricians on a typical project, these “very difficult” column labor units are applicable. The Introduction to the MLU includes a Labor Factor Score Sheet to help determine the appropriate column.

Pandemics and Construction Productivity: Quantifying the Impact

This comprehensive study includes research data from NECA contractors, which highlights productivity and hours lost due to new social distancing, PPE guidelines and other pandemic-related factors. It is a useful tool for contractors to measure these impacts on their projects. The report aims to achieve three key goals: quantify the impact on jobsite productivity; provide a calculator for contractors to measure the associated impacts, and provide tangible information for pricing future projects. The research determined that the EC industry's response to coronavirus had a 12.9% impact on productivity, and that profitability was subsequently affected by up to 100%, depending on the percentage spent on labor. The findings provide substantiation for what will likely be billions of dollars in change orders across the construction industry.

Download the report

Resources:

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2019-2020 Edition Errata

The ground bushing only labor units have been revised. The revised page can be found here.



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