Kitting services · Los Angeles 3PL

Kitting and assembly services in Los Angeles.

Bundles, variety packs, starter kits and retail-ready packs, built to your spec and shipped from the same warehouse that holds your inventory.

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For DTC, Amazon and wholesale brands that need more than pick, pack and ship.

Kit build spec
Example
Starter Kit · 3-pack
Components
3 SKUs + insert
Packaging
Custom mailer
Channel
Shopify + FBA
Lots
Recorded
Example spec. Every kit is built to a written work order.
Bundles & variety packs
Multi-SKU kits built to your spec
Inserts & custom packaging
Your branding in every box
FBA bundling
Kitted and prepped for Amazon
Retail-ready kits
Built to big-box packaging specs

Kitting is where basic 3PLs start making mistakes.

A single-SKU order is easy. A kit with three components, an insert and custom packaging is where the wrong flavor ends up in the box, inserts get skipped, and inventory counts stop matching what's on the shelf.

Most brands end up kitting in a garage, paying a co-packer and then shipping finished kits to their 3PL, or living with error rates they'd never accept on regular orders.

At Stride, kitting happens in the same warehouse as your fulfillment. Kits are built to a written spec, components are scanned, and finished kits go straight into sellable inventory.

How it works

How kitting works at Stride

01

Spec

You send the kit contents, packaging and inserts. We write it up as a work order.

02

Receive

Components arrive and are logged by SKU, lot and location.

03

Build

Kits are assembled to spec, with components scanned as they go in.

04

Stock

Finished kits become sellable inventory in our WMS.

05

Ship

Kits ship to customers, to Amazon, or to your retail partners.

Stride's capabilities

Kitting and assembly for every channel you sell on

Bundles and variety packs

Multi-packs, sampler sets and mix-and-match bundles assembled from your existing SKUs.

Subscription and starter kits

Recurring boxes and first-order kits built ahead of your ship dates.

Promotional and PR kits

Influencer boxes, launch kits and seasonal sets, built in small or large runs.

Inserts and custom packaging

Thank-you cards, instructions, samples and branded mailers placed in every order.

FBA bundling and prep

Bundles kitted, labeled and prepped to Amazon's requirements before they ship to FBA.

Retail-ready kits

Kits packed and labeled to big-box retailer specs for wholesale and dropship programs.

Kitting for brands with complex products

We build kits every day for brands in these categories, including lot-tracked and regulated products.

99.8%
Order accuracy
12PM PT
Same-day cutoff
~1 week
To go live
Top 3PL
California 2025, Fulfill.com

When a kit spec changes, one message gets it handled.

Your dedicated account manager knows your SKUs, kit specs and launch calendar. No ticket queues, no help desk, no rotating reps.

Message thread · example
You
Swapping the insert in the Starter Kit starting Monday. New cards arrive Friday.
Your account manager
Got it. We'll update the work order and start using the new card on Monday's builds.

Kitting and assembly FAQs

What's the difference between kitting, assembly and bundling?

They overlap. Bundling usually means grouping existing SKUs into one sellable unit. Kitting is assembling those components into a finished package. Assembly can include building or packaging products before they ship. We handle all three.

Can you add inserts and custom packaging?

Yes. We place thank-you cards, instructions, samples and branded packaging in kits and regular orders, to your spec.

Do you kit for Amazon FBA?

Yes. We bundle, label and prep kits to Amazon's requirements and ship them to FBA. We prepped 300,000 supplement units for FBA in 14 days.

Can you build retail-ready kits?

Yes. We pack and label kits to big-box retailer specs for wholesale and dropship programs.

Do you track lots inside kits?

Components are received and stored by lot, and orders record the lot that shipped, so dated products stay traceable after they're kitted.

Where is your warehouse?

Rowland Heights, California, in the LA/Ontario freight corridor, about 30 miles from the Ports of Los Angeles and Long Beach.

Get kits built right without a separate co-packer.

In a free fulfillment risk audit, we review your kitting, packaging and accuracy data, then tell you what we'd change. No pitch deck.

Get my risk audit →