How many truck-level doors per 10,000 SF should a distribution centre have?

How many truck-level doors per 10,000 SF should a distribution centre have?

The truck-level dock door ratio is the single most-debated spec in distribution centre leasing, and it gets oversimplified more often than any other building metric. The correct ratio depends entirely on your throughput model, not on a generic industry rule of thumb. For most active third-party logistics and regional distribution operations in the GTA, target 1 truck-level door per 8,000-10,000 square feet. That means a 100,000 SF distribution centre should have between 10 and 12 truck-level doors, a 250,000 SF facility should have 25-31 doors, and a 500,000 SF regional distribution centre should have 50-62 doors. This ratio assumes a steady operational tempo of inbound and outbound trailers throughout an extended operating day, with cross-docking on roughly 20-30 percent of volume. It's the ratio I see institutional 3PLs underwrite to when they're modeling new deals. For high-velocity e-commerce fulfillment — the kind of operation that runs 16-20 hour days, processes thousands of small parcels per hour, and does heavy outbound flow into last-mile delivery fleets — the ratio tightens dramatically to 1 truck-level door per 5,000-6,000 SF. A 200,000 SF e-commerce fulfillment centre serving the GTA will often have 35-40 dock doors plus a significant number of drive-in or van-level positions for last-mile vehicles. Amazon, Shopify-fulfillment, and large national retailers all underwrite to this denser standard. For storage-heavy distribution — long-dwell inventory, slow-turn product, or staging operations supporting a downstream manufacturing facility — the ratio loosens to 1 door per 12,000-15,000 SF. That building works for the right tenant but is essentially functioning as a warehouse with distribution capability, not a true distribution centre, and it will undervalue significantly in the resale or sublease market if the next user has a more active flow. Three other specs matter as much as the door count itself, and they're where I see most tenants get burned. First, truck court depth: 130 feet is the absolute minimum for clean 53-foot trailer maneuvering at every dock, and 135-140 feet is more comfortable. Anything under 130' creates daily operational friction at peak volume and limits which trailers can dock at which positions. Second, dock spacing: doors should be on 12-foot centres minimum, with 14-foot centres preferred for trailers parking simultaneously. Crowded dock walls with 10-foot spacing force trailers to wait, killing throughput. Third, levelers and seals: every modern distribution dock should have a hydraulic or mechanical leveler rated for 30,000+ pound capacity, full-perimeter dock seals, and ideally a vehicle restraint system — these are operational essentials, not nice-to-haves, and absence of them means a $50,000-80,000 per-dock retrofit cost. The mistake I see most often is tenants accepting a brochure's "dock door count" without confirming the truck court geometry. A building with 24 dock doors and a 105-foot truck court has, functionally, about 16 usable doors at any given time because trailers can't rotate cleanly enough to keep all positions cycling. Always walk the truck court with a tape measure during your tour, and always pull the site plan to confirm. The dock specs determine whether your distribution operation runs at design throughput or at 70 percent of design throughput, every day, forever.