Any page quoting you a universal prep price is guessing. Prep cost is built from three inputs — touches per unit, materials, and volume — wrapped in a fee structure that matters as much as the rate itself. This page teaches you to read a prep quote like an operator: what drives the number, which structures to compare, and which line items should make you ask questions. Then get your own rate sheet, priced against your real products.
Strip away branding and every prep quote reduces to labor plus materials plus margin. Labor dominates, and labor is a function of touches: a boxed item that needs one label is one story; a fragile item that needs unwrapping, bubble, bagging, a warning sticker and careful cartonization is another. Count the actions your product requires and you've roughly ranked yourself on any rate sheet in the industry.
Materials are the second input — bags in the right mil thickness, printed warning labels, bubble, tape, replacement cartons. Honest providers either fold materials into the per-unit rate or itemize them transparently; either is fine as long as you can see it. Volume is the third: identical units in quantity let a bench work in rhythm, and that efficiency should reach you as banded pricing.
Then comes structure, the part sellers skip and regret. A low rate behind a monthly minimum can cost a seasonal seller more than a higher rate with no floor. A setup fee taxes you before a single unit ships. This page walks each structure and the red flags — and if you notice we never printed a dollar figure, that's deliberate: numbers without your product mix are fiction. Ours arrive attached to your actual products, within one business day.
| Cost driver | How it moves your per-unit rate |
|---|---|
| Touches per unit | Each action — label, bag, bubble, bundle, sticker — adds labor time |
| Materials | Compliant bags, printed warnings, bubble and cartons are consumed per unit |
| Volume & repetition | Long identical runs lower labor per unit; complexity doesn't dilute with quantity |
| Product fragility & size | Care, cushioning and oversized handling all slow the bench |
| SKU count per shipment | Many small SKUs mean more changeovers than one large run |
| Fee structure | Minimums and setup fees change total cost without touching the rate |
Same warehouse work, wildly different bills — structure is why.
Pure per-unit billing scales to zero in a slow month. A monthly minimum bills you a floor regardless. Steady high-volume sellers can live with minimums; seasonal and growing sellers usually shouldn't.
Some providers charge before touching a carton. Ask what the fee buys — if the answer is "account creation," you're paying for their paperwork. We charge nothing to start.
One quote's receiving line covers unloading, counting against your PO and photo-documented damage checks; another covers moving boxes off a truck. Same word, different service — read the definition, not the label.
Space actually used (bins and pallets you occupy) versus space reserved for you. Reserved-space billing means paying for air during light months.
Folded into the rate, itemized transparently, or marked up quietly. The first two are fine. The third shows up as a rate sheet that keeps sprouting surcharge lines.
Is the quote written, and how long does it hold? A rate that changes after your inventory is already in the building isn't a rate — it's an opening offer.
What you sell, its fragility, its packaging state on arrival, and the prep each SKU triggers under Amazon's current requirements.
We map every action per unit — label, bag, bundle, sticker, carton — because that map is the honest core of the price.
Your monthly flow sets the band; repetition efficiency is passed through instead of pocketed.
A complete per-unit rate sheet — receiving, prep, storage, forwarding — with no setup fee, no minimum, and no lines you can't define.
Classic surcharge creep: vague 'special handling' lines and materials marked up after the fact. Demand one-sentence definitions for every line item — a provider who bills clearly can explain clearly.
Minimums convert a variable cost into rent. If your sales curve has valleys, per-unit billing with no floor is worth more than a discounted rate that never sleeps.
A price with no product questions behind it is either padded for safety or destined for correction by surcharge. The quote process should feel like an interview about your products — because it is one.
The rate was low; the unscannable labels were free. Measure providers on cost per compliant unit Amazon receives. Scan-verification and documented work aren't luxuries — they're the product.
There is no honest universal number, which is why this page teaches the model instead of quoting one. Per-unit prep cost is a function of touches (how many separate actions each unit needs), materials (bags, bubble, labels, cartons), and volume (how many units amortize the handling). Two sellers with identical unit counts can sit at opposite ends of a rate sheet. The only accurate figure is a quote against your product mix — ours arrives within one business day.
Every discrete action a worker performs on a unit: pick it up, remove factory wrap, apply an FNSKU label, slide it into a poly bag, seal, add a warning sticker, place into a carton. A simple boxed item might need two touches; a three-piece bundle with expiration labels might need eight. Since labor is the dominant cost in prep, a quote is largely a touch count in disguise — which is why describing your product honestly gets you an accurate rate.
Four structural reasons: different fee architectures (pure per-unit versus minimums versus bundled tiers), different local labor and warehouse costs, different assumptions about your product before seeing it, and different appetites for your volume band. A quote that looks cheap can carry a structure that punishes your usage pattern. Compare total cost across your actual monthly flow, not the headline per-unit line.
Three main architectures. Pure per-unit: you pay for work performed, nothing else — costs scale exactly with your shipments. Monthly minimums: a floor charge whether you ship or not, tolerable for steady high volume, painful for seasonal sellers. Setup or onboarding fees: a toll before any work happens. ProShip3PL runs pure per-unit with no setup fee and no minimum, but whichever provider you pick, know which architecture you're signing.
Watch for: receiving charged per carton AND per unit for the same freight; 'special handling' with no written definition; storage billed on reserved space rather than space actually used; charges for photos or reporting that document the provider's own work; re-labeling fees when the provider applied the first label wrong; and rate sheets that expire quickly or change without notice. Any line item nobody can define in one sentence deserves a question before you sign.
Because the mix is the price. A pallet of identical boxed goods preps fast; the same pallet holding forty SKUs of glassware, apparel and supplements is a different job in labor, materials and care. A provider who quotes precisely without asking what you sell is either padding heavily or planning to correct the number later with surcharges. Send the mix, get a rate that survives contact with your actual freight.
Usually, and for a real reason rather than a marketing one: repetition. A thousand identical units let a bench find a rhythm — same label spot, same bag size, same carton pattern — so each unit takes less labor. Many providers, ours included, reflect that efficiency in volume-banded rates. What volume does not do is change the touch count itself: a complex product stays complex at any quantity.
Frequently. Prep errors are invisible until Amazon's receiving finds them, and their cost — stranded inventory, lost sales rank, reimbursement fights — dwarfs the pennies saved per unit. The comparison that matters is cost per compliant unit received by Amazon, not cost per unit handled. A slightly higher rate from a center that scan-verifies labels and documents its work is routinely the cheaper total.
Ask two questions: is storage billed on the space you actually occupy or on space reserved for you, and does the provider let inventory flow into FBA on triggers so you're not warehousing product that should be selling? At ProShip3PL, storage is monthly for used space — bins and pallets — and replenishment moves stock to a carrier within 24–48 hours of your trigger, which keeps stored inventory a buffer rather than a bill.
Send the form on this page with what you sell, roughly how many units move monthly, and any prep you know your products need — bagging, bundling, expiration labels. You'll receive a written per-unit rate sheet within one business day, covering receiving, prep, storage and forwarding. No setup fee, no monthly minimum, and the rates you see are the rates you're billed.
You know the model — touches, materials, volume, structure. Send us your product mix and monthly flow, and we'll return a written per-unit rate sheet within one business day. Every line defined, no setup fee, no minimum, no surprises on invoice two.
