How Much Warehouse Space Do I Need?

Step 1 — Storage footprint

• Palletized: count peak pallet positions, not average. A standard GMA pallet is 48 by 40 inches, about 13.3 square feet of floor area per ground-level position. If racking vertically, divide total positions by the number of levels your clear height supports.
• Not palletized: measure your largest items and lay out the storage method on paper. Contractors storing conduit, lumber or pipe are constrained by length rather than footprint, which changes which buildings work at all.
• Vehicles or equipment: measure real footprint plus door swing and working room, not spec sheet dimensions.

Step 2 — Staging and loading

The floor immediately inside your overhead door has to stay clear for receiving, sorting, staging outbound and returns. If you take full trailer loads, you need enough clear floor to break down a load without blocking anything.

Tenants who skip this line item end up staging in their aisles and lose functional capacity within months.

Step 3 — Office, restrooms and employee space

Desks, a meeting area if you need one, restrooms required by occupancy, break area. This is what pushes many businesses from plain warehouse into flex. See Flex Space vs Warehouse vs Industrial.

Step 4 — Circulation and aisles

The most underestimated step.

Aisle width depends entirely on your material handling equipment. A sit-down counterbalance forklift needs substantially more aisle than a reach truck or a walkie stacker, and manufacturers publish minimum right-angle stacking aisle dimensions per model. Get that number from your equipment spec rather than guessing, because a building that works for a reach truck may not work for the forklift you already own.

• Also account for column spacing. Columns in the wrong place inside your rack layout waste real square footage, and you cannot see that problem on a listing.

Step 5 — Growth

Decide where the business will be at the end of your term, not where it is this month. Then choose:

• Lease for the growth. More space than you need today, higher rent from day one.
• Lease tight and negotiate an option. Right of first refusal or first offer on adjacent suites, or an expansion option. Costs nothing today, and multi-tenant parks can often accommodate it. Ask at letter of intent stage. At Rankin Business Park, with 28 suites, adjacent space can sometimes be combined.

Put it together, then check it against clear height

Total equals storage footprint plus staging plus office and employee space plus circulation and aisles plus growth.

Whatever number you land on, sanity check it against clear height before you go looking. A building giving you four rack levels instead of two roughly halves your storage footprint requirement. That single variable moves the answer more than anything else on this list. See Clear Height Explained.

Five common sizing mistakes

• Sizing off current inventory instead of peak. If you have a seasonal peak, size for it or plan overflow.
• Forgetting the door. One grade-level door in the wrong corner can make otherwise correct square footage unusable.
• Ignoring turning radius outside. If a box truck or semi cannot maneuver in the yard, interior dimensions do not matter. Walk the site with your driver, not just your broker.
• Paying for office you will not use. Finished office carries a rate premium.
• Confusing rentable with usable. Ask which figure the listing uses and whether a load factor applies.

Frequently asked questions