Site planning9 min

What to measure before a sorter is designed

The building, utility, parcel-flow and integration inputs that prevent expensive redesigns.

Quick answer

A parcel sorter site survey should document usable geometry, structural limits, equipment access, utilities, fire and safety constraints, real parcel flow, controls interfaces and expansion space before the equipment layout is approved.

Building geometry and access

Measure usable length, width and clear height rather than relying only on architectural drawings. Record columns, beams, doors, stairs, drains, fire routes, existing equipment and areas that operations cannot release during installation.

Trace the delivery path from the site gate to the final installation position. Large frames, preassembled modules and lifting equipment may require different access from normal warehouse traffic.

  • Column grid and clear height
  • Floor loading and anchor restrictions
  • Delivery doors, turning space and lifting points
  • Emergency exits and fire-system clearance
  • Reserved expansion and maintenance zones

Utilities and environment

Record available electrical capacity, voltage and frequency, isolation points, network routes and compressed air where required. Note temperature, humidity, dust, washdown, vibration and any local environmental conditions that affect component selection.

Confirm where control cabinets, operator stations, scanners and network equipment can be installed with suitable access and protection.

Observe the real operational flow

Map receiving, parcel preparation, induction, exception handling, recirculation, chute clearing, container movement and outbound staging during a real peak period. Interviews alone often miss temporary queues and informal manual workarounds.

Record how people and mobile equipment cross the proposed automation area. Safe access and uninterrupted container movement can influence the layout more than the sorter footprint itself.

Define integration boundaries

List scanners, dimensioners, scales, PLCs, WCS and WMS interfaces, barcode formats, message ownership and required reporting. Identify which party supplies each device, cable, network connection and software interface.

Agree how no-read, duplicate, late and unknown-destination parcels will be handled. Exception logic should be part of the design, not a commissioning discovery.

Turn survey evidence into design controls

Issue a dated survey pack containing drawings, photographs, measurements, assumptions and unresolved questions. Every layout revision should reference the same controlled inputs.

Before order release, verify critical dimensions on site and identify any work owned by the customer, local contractor, integrator or equipment supplier.

Frequently asked questions

Can a sorter be quoted from a building drawing alone?

A preliminary budget is possible, but a reliable layout normally requires verified dimensions, operational flow, utilities, access and integration information.

Who should attend the site survey?

Operations, facilities, IT or controls, safety, the system integrator and the equipment supplier should be represented where their scope affects the design.

What is the most common survey omission?

Teams often measure the sorter footprint but overlook maintenance access, chute-container movement, delivery access and exception handling.