Cross-Dock Throughput Calculator

Daily Throughput is set by the smallest of the four hourly capacities (inbound, sort, outbound, staging), so adding doors only helps once Inbound Doors is actually the binding constraint shown in Bottleneck. If Sort Rate or another stage is already the tighter limit, more inbound doors just gives that stage more idle spare capacity -- the overall flow still can't move faster than its true bottleneck.

It identifies which single stage -- Inbound Doors, Sort Rate, Outbound Doors, or Staging Area -- is currently capping your daily throughput, i.e. which one has the smallest hourly capacity of the four. That's the stage worth investing in first: raising capacity anywhere else won't move Daily Throughput until the current bottleneck is relieved.

Inbound and Outbound capacity assume about 2 trucks per door per hour at roughly 20 pallets per truck. Staging capacity assumes about 40 square feet of floor space per pallet in transit, turned over at the same 2-cycles-per-hour rate as the dock doors. Sort Rate is taken directly as the pallets-per-hour figure you enter for your manual or automated sorting process. These are this calculator's own planning assumptions, useful for comparing stages against each other, not a substitute for your facility's measured throughput data.

Max Capacity is the daily ceiling set only by Inbound Doors, Outbound Doors, and Sort Rate -- it deliberately excludes Staging Area. Daily Throughput is the realistic, fully-constrained figure that also factors Staging Area in, so it can never exceed Max Capacity. When Bottleneck names Staging Area as the tightest constraint, Daily Throughput sits below Max Capacity by exactly the amount limited staging space is costing you -- Max Capacity shows the payoff of expanding staging up to what your doors and sorting can already support.

Staging space caps how many pallets can be held in transit between the inbound and outbound sides at any given moment -- if that floor space is small relative to your door and sort capacity, pallets have nowhere to wait even briefly, throttling the whole operation regardless of how fast trucks can dock and unload. This is a common real-world cross-dock constraint, especially in facilities that were converted from traditional warehouses with limited open floor space.