Every week, brands reach out to us with the same questions about third-party logistics. Not the surface-level stuff you find on most 3PL websites — real operational questions from founders who are about to trust someone else with their customers’ experience.
I spent more than a decade as an Amazon seller. I shipped tens of millions of dollars in product through 3PLs before building one. These are the answers I wish someone had given me.
What is a 3PL?
A third-party logistics provider (3PL) is a company that handles warehousing, picking, packing, and shipping on behalf of another business. Instead of renting your own warehouse, hiring your own team, and managing your own shipping operations, you outsource that entire function to a 3PL.
The 3PL receives your inventory, stores it, and ships individual orders to your customers as they come in. They handle the physical execution so you can focus on product development, marketing, and growth.
How much does a 3PL cost?
Most 3PLs charge across three categories: receiving (getting your inventory into the warehouse), storage (holding it), and fulfillment (picking, packing, and shipping each order).
Typical ranges:
- Receiving: $25–50 per pallet or $0.25–0.50 per unit
- Storage: $15–25 per pallet per month
- Pick and pack: $2.50–4.50 per order (varies by item count and complexity)
- Shipping: Passed through at carrier rates (some 3PLs mark this up 15–30%)
A brand shipping 1,000 orders per month with simple single-item orders might spend $4,000–6,000/month total. But the real question is not what a 3PL costs — it is what your current fulfillment costs when you account for your own time, rent, labor, mistakes, and shipping rates without volume discounts.
When should a brand outsource fulfillment to a 3PL?
The clearest signal is when fulfillment is consuming time and attention that should go toward growth. Specific indicators:
- You are shipping more than 100–200 orders per month
- Fulfillment errors are increasing as volume grows
- You are turning down sales channels because you cannot handle the logistics
- Your space is maxed out and you are considering a lease
- You spend more time packing boxes than building your brand
The math usually tips in favor of a 3PL somewhere between $30K–$100K in monthly revenue, depending on your product complexity and order profile.
What is the difference between a 3PL and a fulfillment center?
In practice, these terms are used interchangeably. Technically, a fulfillment center is a physical facility where orders are processed, while a 3PL is the company that operates one or more fulfillment centers as a service.
Amazon’s FBA warehouses are fulfillment centers. ShipBob operates fulfillment centers. Thrive 3PL operates fulfillment centers. The distinction rarely matters to the brand choosing a partner — what matters is the service level, technology, and pricing.
How do I choose a 3PL?
Focus on five things:
- Technology integration: Can they connect to your sales channels (Shopify, Amazon, WooCommerce) automatically? Do they offer real-time inventory visibility?
- Location: Where is the warehouse relative to your customers? A central US location like Houston can reach 90% of the population within 2-day ground shipping.
- Specialization: Do they serve brands like yours? A 3PL that specializes in e-commerce DTC fulfillment operates differently than one focused on B2B pallets.
- Onboarding process: How long does it take to get set up? Industry standard is 30–45 days. Some providers do it in 7–15 days.
- References: Talk to their current clients. Ask about accuracy, communication, and how they handle problems.
Avoid any 3PL that will not let you tour the facility or speak with existing clients.
What is the difference between FBA and a 3PL?
Amazon FBA (Fulfillment by Amazon) stores your inventory in Amazon’s warehouses and ships orders placed on Amazon. A 3PL stores your inventory in an independent warehouse and ships orders from any sales channel — your Shopify store, Amazon (via FBM), wholesale accounts, or anywhere else.
FBA is channel-locked to Amazon. A 3PL is channel-agnostic. Most growing brands use both: FBA for Amazon orders and a 3PL for everything else.
What is FBA Prep?
FBA Prep is the process of preparing products to meet Amazon’s strict receiving requirements before shipping them to FBA warehouses. This includes labeling (FNSKU barcodes), poly-bagging, bundling, and ensuring packaging meets Amazon’s guidelines.
Many 3PLs offer FBA Prep as a service — your inventory ships to the 3PL, they prepare it to Amazon’s specifications, and forward it to FBA fulfillment centers. This lets you avoid doing prep work yourself while maintaining your FBA presence.
How long does 3PL onboarding take?
Industry average is 30–45 days from contract signing to first order shipped. This includes WMS setup, integration configuration, receiving initial inventory, training, and testing.
Some technology-forward 3PLs can onboard in 7–15 days using standardized integration templates and dedicated onboarding teams. The timeline depends heavily on how complex your operation is — a single-SKU Shopify brand onboards faster than a 500-SKU brand selling across six channels.
Can a 3PL handle subscription boxes?
Yes. Subscription box fulfillment is a common 3PL service, though it requires specific capabilities: kitting (assembling multiple items into one box), custom packaging, and cyclical volume spikes tied to subscription renewal dates.
Ask potential 3PLs about their kitting workflow, minimum order quantities for subscription runs, and whether they charge per kit or per item within the kit. The pricing model matters significantly for subscription economics.
What happens to my inventory if I leave a 3PL?
Your inventory belongs to you. When you end the relationship, the 3PL ships your remaining inventory to your new location — whether that is another 3PL, your own warehouse, or anywhere else you direct.
Most 3PLs charge for the labor of pulling, palletizing, and shipping your inventory out. Read the contract for exit terms before signing. Any 3PL that makes it contractually difficult to leave is telling you something about how they retain clients.
What accuracy rate should I expect from a 3PL?
Industry standard for order accuracy is 99.5–99.9%. That means for every 1,000 orders, 1–5 will have an error (wrong item, wrong quantity, wrong address label).
99.9% sounds impressive, but at scale it still means errors. A brand shipping 10,000 orders per month at 99.9% accuracy still sees 10 errors. The question is not just the accuracy rate — it is how the 3PL handles errors when they happen. Do they catch them internally? Do they notify you proactively? Do they cover the cost of reshipping?
Do 3PLs handle returns?
Most 3PLs offer returns management (also called reverse logistics). The typical process: the returned item arrives at the warehouse, staff inspect it against your return policy, and either restock it, set it aside for refurbishment, or dispose of it based on your instructions.
The sophistication varies. Some 3PLs simply receive returns and put them back on the shelf. Better providers offer inspection workflows, grading systems, photo documentation, and automated restocking rules tied to your return policy.
What integrations should a 3PL support?
At minimum: direct integration with your sales channels (Shopify, Amazon Seller Central, WooCommerce, BigCommerce) and major shipping carriers (USPS, UPS, FedEx, DHL).
Beyond that, look for: inventory management platforms (Extensiv, ShipStation, Linnworks), accounting software (QuickBooks, Xero), and returns platforms (Loop, Returnly). The best 3PLs use a WMS (Warehouse Management System) that connects to these via API or middleware, so orders flow automatically without manual data entry.
What is the difference between a local and national 3PL?
A local or regional 3PL operates one or two warehouses in a specific area. A national 3PL operates a network of warehouses across multiple locations.
National 3PLs offer faster shipping to more zip codes but are more expensive and less flexible. Local 3PLs offer hands-on service, more customization, and often lower costs — but shipping to distant customers takes longer.
For most brands under $500K/month in revenue, a single well-located warehouse (like Houston, which sits in the geographic center of US population density) outperforms a distributed network on cost while still delivering 2-day ground to 90% of the country.
How does 3PL pricing compare to doing it yourself?
For brands shipping fewer than 100 orders per month, in-house is usually cheaper in direct costs (though not in opportunity cost). Between 100–500 orders, it depends on your labor costs, lease, and error rate. Above 500 orders per month, a 3PL almost always wins.
The hidden costs of in-house fulfillment that most brands undercount: commercial lease ($8–15/sq ft/year), insurance, equipment, hiring and training labor, shipping software, carrier rate negotiations, error and damage costs, and the founder’s time spent managing operations instead of growing the business.
A 3PL amortizes all of those costs across hundreds of clients.
What is a WMS?
A Warehouse Management System (WMS) is the software that runs a 3PL’s operations. It tracks every unit of inventory from the moment it arrives at the warehouse through storage, picking, packing, and shipment.
A good WMS provides: real-time inventory counts, lot and expiration tracking, barcode-verified picking (reducing errors), automated shipping label generation, and client-facing dashboards showing order status and inventory levels.
Ask potential 3PLs which WMS they use and whether you get direct access to a client portal. If they manage your inventory in spreadsheets, walk away.
Can a 3PL help with international shipping?
Many 3PLs ship internationally, though the service level varies. Basic international support means they can generate customs documentation and ship via USPS International, UPS Worldwide, or DHL Express.
More advanced 3PLs offer DDP (Delivered Duty Paid) shipping, which means your international customers do not get hit with unexpected customs charges at delivery. Some also handle international returns, though this adds complexity and cost.
If international orders are more than 10–15% of your volume, make sure the 3PL has documented experience with your target countries.
What contract terms are normal for a 3PL?
Most 3PLs offer month-to-month agreements or annual contracts. Month-to-month gives you flexibility; annual contracts sometimes come with discounted rates.
Watch for: minimum volume commitments (requiring you to ship X orders per month), long notice periods for cancellation (30 days is reasonable; 90 days is aggressive), and exit fees. Any 3PL that requires a multi-year commitment for a brand under $1M in revenue is overreaching.
The healthiest 3PL relationships have no long-term lock-in because the 3PL earns the business every month through performance.
What should I send my 3PL before getting a quote?
A good 3PL needs this information to quote accurately:
- Monthly order volume (average and peak)
- SKU count and average items per order
- Product dimensions and weights (for storage and shipping calculations)
- Sales channels (Shopify, Amazon, wholesale, etc.)
- Special requirements (temperature control, lot tracking, kitting, custom packaging)
- Current shipping profile (where your customers are located)
The more precise your data, the more accurate the quote. Vague RFPs get vague pricing — and vague pricing leads to surprise invoices.
Is Houston a good location for a 3PL?
Houston is one of the strongest 3PL locations in the United States for several reasons:
- Geographic centrality: Ground shipping from Houston reaches 90% of the US population within 2 business days
- Port of Houston: The #1 US port by foreign waterborne tonnage, critical for brands importing product
- Cost advantage: Lower commercial real estate and labor costs than coastal markets (LA, NYC, NJ)
- No state income tax: Business-friendly environment
- Carrier density: Major hub for UPS, FedEx, USPS, and regional carriers
For brands selling nationwide, a single Houston-based 3PL often delivers better unit economics than splitting inventory across multiple coastal warehouses — especially at volumes under $500K/month.
These are the questions we hear most often. If yours was not on this list, reach out for a conversation — we would rather answer your specific question than have you guess.