Tools & Calculators

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Choosing a 3PL

Warehouse Cost Calculator: In-House vs. 3PL

Find out what running your own warehouse really costs per pallet position, including space, labor, equipment and unused capacity, versus using a 3PL.

What Does Your Warehouse Really Cost?

At some point, most companies running their own warehouse wonder whether outsourcing would be cheaper. It’s a reasonable question and a hard one to answer, because the two options don’t produce comparable numbers.

Want to go straight to the numbers?

Why the comparison stalls

A 3PL quotes you a rate per pallet position per month. That gives you one figure covering space, labor, equipment, and systems.

Your own warehouse never produces that figure anywhere. The cost exists, but it’s scattered across:

  • A lease

  • A payroll file

  • A forklift invoice

  • A software subscription

  • A utility bill

  • Some share of a manager’s salary

Several budget lines, and nobody’s job to total them up.

So the comparison stalls before it starts. Companies either guess at their total warehouse cost or compare the 3PL rate with rent alone. Neither approach accounts for the full cost of running the warehouse, so neither produces an accurate comparison.

Two things tend to surprise companies

When companies do assemble the real number, two things tend to surprise them.

1. What the rent number leaves out

Rent per square foot is the figure everyone has memorized.

Add equipment, the warehouse management system, supervision, insurance, utilities, and supplies, and the all-in cost per square foot is often more than double it. The lease is what you negotiate hardest, and it’s rarely half of what the space actually costs.

2. What peak capacity is worth

Say your building holds 1,800 pallet positions and you average 1,100. You’re paying for 700 empty positions throughout the year to cover a season that runs eight weeks.

That isn’t waste in the sense of anyone doing anything wrong. It’s what owning your own capacity costs, and it’s the biggest structural difference between running a warehouse and renting space in one.

Most operations have never put a dollar figure on it.

Outsourcing isn’t always the right answer

None of this means outsourcing is the right answer.

If your volume is steady and your warehouse stays well utilized throughout the year, keeping the operation in-house may cost less. In-house may also make more sense when your warehouse is tightly integrated with production and moving inventory elsewhere would add costs or delays.

But you can’t weigh that decision until you know what your current operation actually costs. That means assembling all of those scattered expenses together into one figure.

Get a usable number

The calculator does the assembling.

Start with just two numbers: your total square footage and rent. The calculator uses them to estimate the remaining costs, based largely on your facility size.

You can stop there for a useful starting point or replace any of the estimates with figures from your own operation. The more you customize, the more precise your result becomes.

It also shows where your money goes, what unused capacity may be costing you, and when keeping the operation in-house may make more sense.