Decision Labs Ltd, Systems and Supplies
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Procurement note

How to scope a reliable office network

A practical guide to defining users, coverage, capacity, security and support before requesting network quotations.

26 August 20264 min readDecision Labs advisory team

A useful network quotation starts with a clear operational brief. Device counts alone rarely provide enough information. Coverage, traffic, security, resilience and future growth all affect the right design.

Start with people, spaces and devices

Document the number of staff, guests and shared devices at each location. Include laptops, phones, printers, cameras, access-control devices, servers and meeting-room equipment. Record floor layouts, wall materials and any outdoor areas that require wireless coverage.

  • Current and expected user numbers
  • Office floors and remote buildings
  • Wired and wireless devices
  • Guest access requirements

Define the work the network must support

Email and web access place different demands on a network from cloud backups, video meetings, design files or data systems. Identify critical applications, peak working periods and any services that must stay available during an internet or power interruption.

  • Cloud applications and file transfers
  • Voice and video meetings
  • On-site servers and storage
  • Business-critical systems

Build security into the specification

Separate staff, guest and operational devices where appropriate. Include firewall capacity, secure wireless standards, access controls, central management and logging. Security subscriptions and renewal periods should appear clearly in the quotation.

Plan for resilience and growth

Allow spare switch capacity, suitable cabling and enough wireless performance for expected growth. Consider backup internet, UPS protection and equipment warranties. Ask suppliers to state assumptions, exclusions and support response times.

Information to include in your request

A short site survey often prevents incorrect quantities and avoidable changes. Where a survey is unavailable, attach floor plans, equipment schedules and photographs of server or communications rooms.

  • Site plan and user count
  • Internet links and current equipment
  • Required coverage and performance
  • Security, warranty and support expectations
  • Installation deadline and budget range
Key takeaway

A good network brief connects technical requirements to daily work. Clear inputs produce quotations that are easier to compare and reduce changes during installation.

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