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Master Format Specifications

MasterFormat™ 2004, a product of the Construction Specifications Institute (CSI), is the most widely used standard for most commercial and institutional building projects in the United States and Canada. MasterFormat's Division 27 specifically addresses communications construction, providing specifications and instructions for areas such as data, voice, audio, video, cabling, enclosures, grounding and bonding.

Below is a compilation of the Master Format specification from our manufacturers. 


Leviton Master Format Specifications

Our dedicated, nationwide team of specification engineers support customers who specify, buy, install, and employ our commercial networks products. The engineers are qualified to take you through the specification process from initial design idea to move in. The team is comprised of highly-experienced Registered Communications Distribution Designers and members of the Construction Specifications Institute.

Spec Tools

Sample Bid Spec/RFP Documents:
Other Resources:
» CAT 5e Division 16/27 Compliant PDF | Doc BIM Objects
» CAT 6 Division 16/27 Compliant PDF | Doc Visio Stencils
» CAT 6a Division 16/27 Compliant PDF | Doc DWG Library
» Optical Fiber Division 16/27 Compliant PDF | Doc Literature & Downloads
» CSI MasterFormat 2004 Division 27 PDF | Doc Training Videos

Request DVD of CAD drawings

For more detailed information on Leviton's Specification Team, please click here or call your Morgan Hill manufacturer's representative.


Berk-Tek Master Format Specifications

At the link below, you will find an excerpt of the Berk-Tek D27 specification document, which is made available to consultants, engineers, and contractors who work closely with Berk-Tek on designated projects. To become eligible for receiving the full D27 template, please contact Morgan Hill at 845-338-4504


B-Line by Eaton

At B-Line, our goal is to be a leading provider of information and resources to design and engineering professionals engaged in the design, construction, and maintenance of engineered MEP&T facility subsystems globally.  That is why we developed the CoSPEC Specifier Center - a one-stop design resource for B-Line products. 

CoSPEC is packed with features like the new CAD / BIM / PDMS / Submittal catalog which offers the ability to configure and view B-Line products in 2D and 3D.  Then, with a couple of clicks, just as easily download design content in one of nearly 100 different CAD, BIM, PDMS, and graphics formats.

Visit CoSPEC Specifier Center