Kitting and Assembly 3PL Services: Who Offers It and How Pricing Works
Kitting and assembly 3PL services combine multiple individual SKUs into one new, ready-to-ship unit — a bundle, subscription box, gift set, PR kit, or retail pack — before orders are picked, so each kit ships as a single SKU. Atomix Logistics is a 3PL for ecommerce and DTC brands that offers high-touch kitting and assembly, priced by touchpoints per kit, alongside order fulfillment and custom packaging.
Updated October 2026
This guide defines kitting, assembly, and bundling; shows which 3PLs publicly offer kitting and what they publish about pricing; explains how kitting quotes are structured; and covers when outsourcing beats building kits in-house.
What is kitting in a warehouse?
Kitting in a warehouse is the process of pulling separate component SKUs, assembling them into a single package, and assigning that package its own SKU so it can be stored, picked, and shipped as one unit. The work happens once, in batches, instead of at every order — which reduces per-order picking, cuts the number of items a packer has to verify, and lets peak-season pick lines move faster. Inventory systems decrement the component SKUs when kits are built and then track the finished kit as its own sellable item.
What's the difference between kitting, assembly, and bundling?
Bundling is the merchandising decision, kitting is the physical grouping of finished items into one unit, and assembly is the hands-on work of building or presenting that unit. In practice the terms overlap, but separating them makes quotes and work orders clearer.
| Term | One-sentence definition | Example |
|---|---|---|
| Bundling | Selling several products together at one price, which can be fulfilled as a pre-built kit or picked separately at order time (a "virtual bundle"). | A "skincare starter set" listed as one product on your store. |
| Kitting | Physically grouping finished SKUs into a single package with its own SKU before orders arrive. | Cleanser, serum, and moisturizer packed into one box and labeled as a kit SKU. |
| Assembly | The light build and presentation work inside a kit: folding custom boxes, adding dividers, tissue, inserts, or labels. | Folding a rigid gift box, nesting products in an insert tray, adding a printed card. |
| De-kitting | Breaking finished kits back into their component SKUs, usually billed as rework labor. | Unbuilding unsold holiday sets into singles in January. |
Pre-built kits generally ship faster and with fewer picking errors during high-volume periods than virtual bundles, because the combination is verified once at build time rather than at every order.
What do 3PL kitting and assembly services include?
3PL kitting and assembly services typically include building multi-SKU kits, scheduled subscription-box builds, gift and promotional sets, retail prep, and the relabeling or rework that goes with them.
- Kit builds: assembling multi-SKU bundles into a single kitted SKU, in batches sized to your sales forecast.
- Subscription kits: building each cycle's box ahead of the ship window so large batches of near-identical orders can go out together.
- Gift sets, PR, and influencer kits: holiday assortments, launch boxes, and limited drops with tissue, inserts, and branded touches.
- Retail prep: case packs, multi-packs, and mixed cartons built to a retailer's requirements.
- Relabeling and rework: barcode corrections, compliance labels, and converting singles to multipacks — or back.
Which 3PLs offer kitting and assembly services?
Many ecommerce 3PLs list kitting and assembly as a value-added service, and almost none publish per-kit rates — pricing is quoted after reviewing your components and build. The table below covers providers whose kitting services we verified on their own public pages in October 2026.
| 3PL | Kitting services listed on its site | Kitting pricing published? | What the site says about pricing |
|---|---|---|---|
| Atomix Logistics | Promotional bundles, influencer/PR kits, retail prep kits, subscription boxes, custom package assembly | No dollar rates | "Pricing is based on touchpoints per kit"; standard kitting SLA of 5 days with faster turns available with advance notice (Atomix high-touch kitting) |
| ShipBob | Assembling items that arrived separately, folding custom boxes and adding dividers, barcodes/stickers, inspecting SKUs, de-kitting | No | Offered "at an additional cost"; FAQ notes kitting is "typically charged hourly or per-unit" (ShipBob kitting) |
| ShipMonk | Kitting services, including assembly-line batch kitting for subscription and crowdfunding orders | No | Batches under 50 orders incur a batching fee; amount not published (ShipMonk pricing) |
| Fulfillment.com | Kit assembly, subscription box assembly, presentation work (inserts, custom cartons, branded packaging) | No | Custom quote based on "your units, your box, and your cadence" (Fulfillment.com kitting) |
| eFulfillment Service | Subscription boxes, gift sets and bundles, promotional bundles, retail multi-packs, marketing inserts, multi-supplier assembly | No kitting rates | States "No Set-Up Fees" and "No Minimum Order Requirements"; quote required (eFulfillment Service kitting) |
Because none of these providers publish per-kit rates, the useful comparison is how each one builds a quote — which is the next question.
How much does 3PL kitting cost, and how is kitting and assembly pricing structured?
3PL kitting is usually priced as labor — per finished kit, per component or touch, or per hour — with possible setup or small-batch fees, and the final rate depends on components per kit, packaging complexity, and whether the work is recurring or a one-off project. Public per-unit figures are rare, so treat any number you see online as a provider-specific quote, not a benchmark.
| Pricing structure | How it works | Best fit | What to ask |
|---|---|---|---|
| Per kit | One rate for each finished kit, regardless of how long it takes. | Stable, repeatable kits | How many components and inserts does the rate assume? |
| Per component / per touch | A rate for each item or action (insert, fold, label) that goes into the kit; Atomix Logistics prices kitting this way, by touchpoints per kit. | Kits that vary in size or complexity | Exactly what counts as a "touch"? |
| Hourly labor | Billed by labor hours for the project. | One-off or hard-to-estimate builds | Expected units per hour and crew size? |
| Setup or batching fees | A one-time charge for planning a new build, or a fee for small batches (ShipMonk applies one to batches under 50 orders). | New kits, small runs | Is setup charged per kit design or per batch? |
| Rework / de-kitting | Labor billed to unbuild or relabel kits. | Seasonal sets, packaging changes | Is de-kitting priced like kitting or as hourly rework? |
To compare quotes fairly, give every provider the same spec: components per kit, packaging and insert details, batch size and frequency, and deadline. Atomix Logistics builds each quote around order volume, product mix, and growth stage, and prices custom kitting and special projects "based on complexity and time required," per its order fulfillment pricing page.
When should you outsource kitting instead of doing it in-house?
Outsource kitting when batch size, deadlines, or floor space outgrow your team; keep it in-house when volumes are small, kits change constantly, or the build is part of your product craft. The decision usually comes down to a few signals:
| Signal | Keep kitting in-house | Outsource to a 3PL |
|---|---|---|
| Volume | Occasional small runs | Recurring batches or large seasonal builds |
| Deadlines | Flexible ship dates | Hard subscription ship windows or retail PO dates |
| Space and staff | Room to stage components and a team with spare hours | Kitting would bury your packing stations |
| Inventory | Components stored where you build | Components already at the 3PL — building there avoids moving stock twice |
The classic triggers are a subscription cycle that takes your staff a full week to build, a retailer order with special prep requirements, or a Q4 bundle strategy. If Q4 bundles are on your roadmap, our guides to forecasting Q4 inventory demand and stress-testing fulfillment before peak season cover the timing. Subscription brands should also read how to scale subscription box fulfillment without losing accuracy.
How does Atomix Logistics handle kitting and assembly?
Atomix Logistics handles kitting through its high-touch kitting service: promotional bundles, influencer and PR kits, retail prep kits, and subscription boxes, built in the same dedicated Pod that stores and fulfills your inventory. Atomix's published process includes a consultation, documented build instructions with pictures and videos, client approval of a sample before full assembly, and barcode scanning with double verification before kits ship.
- Turnaround: a standard kitting SLA of 5 days, with 2-day, next-day, or same-day turns available with advance notice, per Atomix's kitting page.
- Accuracy: Atomix states "99.7%+ Accuracy, Even for Complex Kits" on its high-touch kitting page.
- Packaging and inserts: Atomix custom packaging covers branded packaging, handwritten gift notes, and marketing inserts that are treated like SKUs, stored in your Pod, and verified with two-step scans.
- Pricing: based on touchpoints per kit, quoted with your fulfillment program; Atomix states it has no order volume minimums.
New to kitting as a strategy? Our guide to kitting for ecommerce brands covers the merchandising side.
FAQ
What is a kitted SKU?
A kitted SKU is a new SKU created from assembled components, such as three products packed into one gift box. When the 3PL builds kits, the inventory system decrements each component SKU and adds the finished kit as its own sellable unit, so your store can sell, pick, and ship the kit like any single product.
Is kitting fulfillment the same as bundling?
Not exactly. Bundling is selling products together at one price; kitting fulfillment is physically building that bundle in the warehouse before orders arrive. A bundle can also be fulfilled as a virtual bundle, picked from separate SKUs at order time, but pre-built kits are verified once and usually ship faster during high-volume periods.
How do 3PLs charge for kitting and assembly?
Most 3PLs charge kitting as labor: per finished kit, per component or touch, or per hour, sometimes with setup or small-batch fees. ShipBob says kitting is typically charged hourly or per-unit, and Atomix Logistics prices by touchpoints per kit. Few providers publish rates, so request quotes using the same kit spec.
How far in advance should kits be built for Q4?
Work backward from your promotion calendar: components must be received, kits built, and stock positioned before your first big sale date. For most brands that means locking kit designs and quantities by early fall, then confirming your 3PL's kitting turnaround — Atomix Logistics' standard kitting SLA is 5 days — so builds finish before demand peaks.
Can kits be unbuilt if they don't sell?
Usually, yes. Most 3PLs, including ShipBob, list de-kitting as a service, and it is generally billed as rework labor. Because unbuilding costs money and time, size kit batches against a sales forecast rather than assembling your entire component stock, and build additional batches as sell-through data comes in.
Do subscription boxes require special kitting?
Subscription boxes require scheduled kitting: every cycle produces a large batch of near-identical kits against a hard ship window. That makes capacity planning with your 3PL more important than for evergreen bundles. ShipMonk, for example, kits subscription orders in batches and charges a batching fee for batches under 50 orders.
Does Atomix Logistics have minimums for kitting?
Atomix Logistics states it has no order volume minimums and works with brands of all sizes, including pre-launch brands. Kitting is priced by touchpoints per kit, and custom kitting projects are quoted based on complexity and time required, so share your components, packaging, and batch sizes to get an accurate quote.
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