What Is Kitting in Fulfillment and Why Does Your Brand Need It?
Kitting is one of the most useful — and most underused — tools in e-commerce fulfillment. It lets brands create new products without manufacturing anything new, raise average order value, simplify gifting, and stand out on crowded marketplaces. This guide explains what kitting is, the main types of kits, how kitting differs from bundling, and what to know about Amazon requirements in Canada.
What Is Kitting and Assembly?
In 3PL fulfillment, kitting is the process of combining two or more individual items into a single, ready-to-ship unit with its own SKU. Assembly extends this to building or partially putting together products — attaching components, inserting accessories, or packaging items into a custom presentation.
A kitting workflow typically looks like this:
1. Individual component SKUs are received and stored.
2. A kit specification (bill of materials) defines which components, how many of each, and how they are packed.
3. Kits are assembled — either in advance (pre-kitting) or when orders arrive (on-demand kitting).
4. The finished kit receives its own SKU and barcode and is stored or shipped as one unit.
5. Inventory systems deduct the component quantities and add the kit quantity.
Types of Kitting
Subscription boxes: Recurring boxes assembled each cycle, often with changing contents and inserts.
Gift sets: Curated combinations for holidays, Mother's Day, or Valentine's Day — usually in premium packaging.
Promotional bundles: "Buy the starter kit" offers, sample packs, or launch bundles that drive trial of new products.
FBA multipacks: Two-, three-, or six-packs of the same product created for Amazon, where multipacks can carry better unit economics than single units.
Event swag: Conference bags, sponsor kits, and attendee welcome boxes assembled in bulk and delivered to a venue or to individual attendees.
Corporate kits: Employee onboarding kits, client thank-you boxes, and holiday gifts.
Why Brands Outsource Kitting
Labour cost
Kitting is labour-intensive and seasonal. Hiring and training temporary staff for each campaign is slow and expensive. A 3PL already has trained staff and can scale up for a two-week rush.
Space
Kitting requires storage for every component plus workspace for assembly lines. For a brand without a warehouse, that space simply does not exist.
Expertise
Experienced kitting teams know how to design efficient assembly lines, prevent errors with scan-based verification, and pack items to survive carrier handling. Marketplace-ready kits also need correct labels and packaging — mistakes can lead to rejected inbound shipments.
Speed to market
When a bundle idea comes up, an outsourced kitting partner can have it built and live within days, not weeks.
Kitting vs. Bundling: What's the Difference?
The terms are often used interchangeably, but there is a useful distinction:
- Bundling is typically a *virtual* or sales-level concept. Two or more products are sold together at one price, but they may be picked separately at the time of the order. Nothing is physically pre-assembled.
- Kitting is a *physical* process. Components are assembled into a single package with its own SKU — often before any order arrives.
Virtual bundles are flexible and need no pre-assembly, but they are picked item by item for every order. Pre-built kits ship faster, look more polished, and are required in some cases — such as marketplace bundles that must arrive at the fulfillment centre as one unit.
How Kitting Can Improve Amazon Performance
On Amazon, a well-designed bundle can help a brand in several ways:
- Unique listings: A bundle creates a new ASIN with fewer direct competitors than a single commodity product, which can make it easier to win visibility for that listing.
- Higher average order value: Customers buying a bundle spend more per transaction, which helps absorb per-unit fees.
- Better perceived value: Bundles of complementary products often convert better than individual items because they solve a complete need.
- Gift-ready options: Gift sets perform well during peak seasons when shoppers want a complete gift in one click.
Bundles do not guarantee better rankings — the listing still needs strong content, pricing, and reviews — but they give brands more ways to differentiate.
FNSKU Labelling for FBA Kitted Bundles in Canada
If you send kitted bundles to Amazon.ca fulfillment centres, the packaging must follow Amazon's bundle requirements:
- One scannable barcode: The bundle must carry its own FNSKU label, and the barcodes on the individual components must be covered so they cannot be scanned by mistake.
- "Sold as set" labelling: Bundles must be clearly marked with a label such as "Sold as set" or "This is a set. Do not separate."
- Secure packaging: Components must be bagged, shrink-wrapped, or boxed so they stay together through Amazon's handling.
- Bundle listing rules: The bundle must be listed as its own ASIN and comply with Amazon's product bundling policy.
Amazon updates its prep requirements regularly, so check the current guidance before sending inventory. See our Amazon FBA prep requirements guide for more detail.
How CanadiEx Handles Kitting in Toronto
CanadiEx runs kitting and assembly operations from our Toronto facility:
- Kit specifications and approved samples for every project, so every unit matches
- Scan-verified assembly to prevent missing or wrong components
- Poly-bagging, shrink-wrapping, and heat sealing for marketplace-ready kits
- FNSKU, UPC, and custom labelling for Amazon.ca and retail
- Component and kit inventory tracking in our WMS, visible in your client portal
- Same-day shipping of kitted orders to customers, Amazon fulfillment centres, or event venues
Whether you need 200 gift sets for a holiday promotion or a recurring 5,000-unit multipack program for Amazon.ca, our team builds it to spec and ships on schedule.
Pre-Kitting vs. On-Demand Kitting
When planning a kitting program, one of the first decisions is when to assemble:
- Pre-kitting builds a set quantity of kits in advance. It suits predictable, high-volume items such as subscription boxes, Amazon multipacks, and holiday gift sets. Orders ship faster because the kit is ready on the shelf, but components are committed before demand is known.
- On-demand kitting assembles each kit when an order arrives. It suits personalized products, kits with many variant combinations, and low-volume bundles. Inventory stays flexible, but each order takes slightly longer to fulfill.
Many brands use both: pre-kitting their best-selling bundles and assembling slower-moving combinations on demand. A good 3PL will help you decide based on your sales data.