Division 27: Communications for Owners & Facility Managers

For a broad, role-neutral explanation of the scope and its coordination boundaries, start with [CSI MasterFormat Division 27: Communications](/MasterFormat-division-27-communications). This page focuses on how owners & facility managers apply that division in practice.

How Owners & Facility Managers Use Division 27 – Communications

Organizes owner project requirements, design guidelines, master specs, O&M manuals, and procurement catalogs by standardized divisions and sections. Division 27 is one of the divisions that owners & facility managers encounter most frequently in practice. The sections within Division 27 define the products, execution methods, and quality standards that owners & facility managers must reference, review, or author.

Key sections within Division 27 include: - 27 05 00 – Common Work Results for Communications - 27 10 00 – Structured Cabling - 27 20 00 – Data Communications - 27 30 00 – Voice Communications - 27 40 00 – Audio-Video Communications

These sections shape how owners & facility managers publish owner project requirements, design guidelines, and master specs using MasterFormat numbers/titles. When section numbers are outdated or inconsistent, the downstream impact on owners & facility managers is immediate: asset data that doesn't transfer cleanly to FM systems.

Division 27 in the Owners & Facility Managers Workflow

Organizations using CSI standards in operations, assets, project requirements, RFPs, contracts, BIM Execution Plans, CMMS/CAFM/EAM systems, and capital planning. Within this scope, Division 27 plays a specific role:

1. Documentation — Owners & Facility Managers publish owner project requirements, design guidelines, and master specs using MasterFormat numbers/titles. Division 27 sections must be correctly numbered and titled in every document that references them.
2. Coordination — Division 27 scope intersects with other divisions on every project. Owners & Facility Managers need consistent classification to coordinate communications work with adjacent trades and disciplines.
3. Quality — maintain capital planning libraries in UniFormat and convert them to MasterFormat packages for procurement.

Pain Points Owners & Facility Managers Face with Division 27

• Asset data that doesn't transfer cleanly to FM systems — When Division 27 section references are affected by asset data that doesn't transfer cleanly to FM systems, the result is rework, RFIs, or coordination failures that owners & facility managers must resolve.
• Inconsistent handover documentation — When Division 27 section references are affected by inconsistent handover documentation, the result is rework, RFIs, or coordination failures that owners & facility managers must resolve.
• RFP ambiguity around classification requirements — When Division 27 section references are affected by RFP ambiguity around classification requirements, the result is rework, RFIs, or coordination failures that owners & facility managers must resolve.

These issues compound across projects. A single incorrect Division 27 section number in a team's template can propagate across every project that uses that template.

Division 27 Cross-References for Owners & Facility Managers

UniFormat: Division 27 maps to UniFormat D50 (Electrical) subsection—the communications infrastructure that supports building operations and occupant connectivity.

OmniClass: OmniClass Table 23 (Products) classifies cabling, networking, and AV equipment; Table 12 (Spaces) connects systems to the spaces they serve.

Understanding these connections helps owners & facility managers maintain consistency when Division 27 work touches UniFormat elements or OmniClass classifications in their deliverables.

Why Owners & Facility Managers Need Current Division 27 Data

CSI Dynamic Standards includes Division 27 as part of a connected, edition-aware system—licensed through The Construction Standard. For owners & facility managers, this means always-current section numbers and titles for Division 27, governed cross-references to UniFormat and OmniClass, and edition tracking that prevents referencing obsolete classifications in owners & facility managers deliverables.