Trailers, Truck Bodies & Specialty Vehicles calculator

Delivery Capacity Calculator

Delivery capacity is the number of good, shippable trailers a plant can actually deliver over a planning horizon after downtime and quality losses are subtracted from the gross rated capacity. Sales and operations planners use it to make ship commitments they can keep, and plant managers use it to spot whether uptime or yield is the bigger drag on deliverable output. The gap between gross capacity and good output is where missed delivery dates come from — a line rated for 1,920 units that only delivers 1,676 will blow a schedule built on the nameplate number.

What this calculator does

  • Delivery capacity is the number of good, shippable trailers a plant can actually deliver over a planning horizon after downtime and quality losses are subtracted from the gross rated capacity.
  • Use it when delivery capacity in trailers, truck bodies and specialty vehicles is being asked to take on more work and you need to know if there is room.
  • It multiplies units per cycle by available cycles for gross capacity, then applies uptime and first-pass yield to get the good deliverable output.

Formula used

  • Gross delivery capacity capacity = units per cycle × available cycles
  • Good capacity = gross capacity × uptime × yield

Inputs explained

  • Trailers built per production cycle:
  • Available production cycles in the horizon:
  • Equipment uptime:
  • First-pass yield:

How to use the result

  • Use it during S&OP, when committing to a large fleet order, or when deciding whether an uptime or yield problem is capping your ship rate.
  • It assumes uptime and yield are stable across the horizon; a plant with a chronic reliability problem or a new-model yield ramp will see actual delivery capacity swing well outside this static estimate.

Current U.S. benchmarks

  • On-highway diesel averages $4.58 per gallon this week (EIA), trending down over recent periods. Truck tonnage is up 3.4% year over year (ATA via FRED).
  • U.S. light vehicles sell at a 16.9 million annual rate (BEA, Jun 2026), up 4.1% from a year earlier, the volume signal for automotive supply chains.
  • Steel mill PPI stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. New factory orders are up 2.3% year over year (Census).
  • The U.S. has 11,691 transportation equipment establishments employing about 1,682,910 workers (Census County Business Patterns, 2023).

Common questions

  • How do you calculate delivery capacity? Multiply units per cycle by available cycles for gross capacity, then multiply by uptime and yield. Here 4 units/cycle x 480 cycles = 1,920 gross, and x 90% uptime x 97% yield gives 1,676 good units.
  • What's the difference between gross capacity and delivery capacity? Gross capacity of 1,920 is what the line would produce running flat out with zero defects. Delivery capacity of 1,676 is what actually ships after 192 units of uptime loss and 52 units of yield loss.
  • What is a good uptime for a trailer build line? Well-run assembly lines target 85-92% uptime. At 90% here, downtime alone costs 192 deliverable units over the horizon — the single largest loss in this example.
  • How much does yield cost me in this example? First-pass yield of 97% strips 52 units off the post-uptime total. Even a couple of percent of rework or scrap compounds on top of downtime losses to widen the delivery gap.
  • Delivery capacity vs throughput — which should I quote to sales? Quote delivery capacity. Throughput is an hourly rate; delivery capacity is the good-unit total over the horizon sales actually cares about, already net of downtime and scrap.

Last reviewed 2026-05-12.