Boxes - Mailers

Mailing Boxes for Industrial Packaging & E-Commerce Fulfillment

Fastpak Systems supplies mailing boxes engineered for throughput, product protection, and freight efficiency. Unlike our regular corrugated shipping boxes, our mailing boxes have a five-fold panel. From economical stock mailers to custom-printed kits, our program integrates with your tape sealing, strapping, stretch, and shrink wrapping operations-cutting labor, damage, and total applied cost.=====

What Mailing Boxes We Stock (and Why It Matters)

Core families

• Corrugated Mailers (Kraft & White): One-piece die-cuts with built-in tabs allow for fast assembly and strong edge protection- ideal for D2C, samples, and kitted shipments
  Quick specs: Kraft or White; popular inside dims from ~10"×10"×2", 12"×9"×2", 12"×6"×4"; ships flat in bundles
• Easy-Fold Mailers (Kraft & White): Fold-over designs that "size-to-fit" shallow SKUs like books, frames, and kits-minimize void and DIM weight
  Quick specs: Shallow heights (˜1"-3"); standard panels ~12"×11½"×3" to 20"×16"×2".
• Literature Mailing Boxes (Standard & Deluxe; Kraft & White): Front-loading or clamshell styles that protect corners and keep documents, kits, and components presentation-ready
  Quick specs: Inside dims typically in the 11"×8¾"×5" to 12?"×9¼"×6½" range, plus compact sizes for small kits
• Outside-Tuck Mailers (White): Clean exterior for labeling/branding; outside tuck prevents content scuffing and deters tampering
  Quick specs: Popular sizes around 9½"-12" long with mid-depth panels
• Side-Loading Locking Mailers (White): Load from the side for books, frames, and flat goods; integral locks speed packing and resist pop-opens in transit
  Quick specs: Common sizes ˜11"-12" long; 2½"-3" depths
• Square & Triangle Mailing Tubes: Non-round profiles stack cleanly, resist rolling on conveyors, and fit better on pallets and parcel belts
  Quick specs: Square/triangle cross-sections; lengths sized for posters, rods, maps, and long components
• Garment Mailing Boxes: Presentation-forward apparel mailers that reduce returns by protecting fold lines and finishes
  Quick specs: Flat, light-weight formats optimized for parcel rates

Other Available Packaging

• Stock, printed, or plain mailer boxes
• Made-to-spec custom sizes, die-cuts, and board grades
• Plastic corrugated options for reusable/returnable loops
• Inside-the-Box Protection & Void Fill
• Right-size performance to your product and route:
• Paper cushioning pads (manual & shooter-dispensed Kraft)
• On-demand air cushions
• Bubble cushion rolls
• Loose fill
• Foam-in-place & custom foam inserts
• Foam rolls, laminates, pouches, and bags
• Closing, Unitizing & Reinforcement
• Pair mailing boxes with the right closure for speed and seal integrity:
• Hand & machine-grade packaging tapes
• Strapping (polyester/PP/steel), buckles & seals
• Carton staplers, stitching wire, industrial nailers
• Tape dispensers & case sealers for high-uptime lines

Related Manual, Semi-Automatic, & Fully-Automatic Equipment

• Strapping tools & machines
• Carton sealing machines (case sealers)
• Stretch wrappers (semi-auto to fully auto)
• Shrink/bundling systems

We match mailer materials to packaging and shipping machinery to stabilize loads, prevent panel bulge, and protect edges-without over-spec’ing film or strap.

Selecting the Right Mailing Boxes (Quick Guide)

1. Define the product profile: weight, edges, finish sensitivity, and moisture risk.
2. Choose the style: easy-fold for shallow kits, literature/OTM for presentation, side-load for framed/flat items, or square/triangle tubes for long goods.
3. Pick board & finish: ECT-32 works for many parcels; step up to DW/TW for heavier loads. Choose Kraft for durability and printing economy or White for brand presentation.
4. Optimize interior: use targeted pads or foam to pass drop/compression with minimal cube.
5. Confirm closure: tape vs. tabs vs. staples/strap based on weight and automation.
6. Validate on your line: fit check erectors/sealers, label panels, and pallet patterns.

Why Buy Mailing Boxes from Fastpak Systems?

• Lower total applied cost: Match board grade, dimensions, and closure to product weight, fragility, and automation level to reduce materials, rework, and damage
• Line integration expertise: We align materials with case sealers, stretch/shrink wrappers, and strapping tools so your mailers run cleanly at a rate
• Supply resilience: Broad size matrix, quick-turn stock, and custom programs
• Quality you can measure: ECT/Burst compliance, consistent caliper, square scores, and predictable machineability

Industries We Serve

• E-commerce/D2C
• Subscription boxes
• Manufacturing
• Automotive
• Building materials
• Medical devices, electronics
• Food & beverage, education/non-profit (literature & kit mailers)

Programs available for kitting, vendor-managed inventory, and returnable loops.

FAQ About Mailing Boxes for Shipping

Q: What are mailer boxes?
A: Mailer boxes are one-piece or multi-panel corrugated shippers with integrated tabs/tucks designed for fast packing, clean presentation, and parcel durability.

Q: Kraft vs. white mailers-what should I choose?
A: Pick Kraft for rugged handling and printing economy; choose White when unboxing and brand colors matter.

Q: Which style protects books, kits, or framed items best?
A: Use literature mailers or side-loading locking mailers for corner/edge protection and easier, safer loading.

Q: How do easy-fold mailers reduce DIM charges?
A: They wrap tightly to the product, so you ship less air, cutting void fill and dimensional weight fees.

Q: Do you offer custom sizes and printing?
A: Yes. We produce custom die-cuts, sizes, grades, and branded print to your performance and presentation targets.

Q: When should I choose square or triangle mailing tubes?
A: For long, narrow goods. Non-round tubes don’t roll on conveyors and palletize efficiently.

Q: How do I cut shipping damage and labor with mailer boxes?
A: Right-size the mailer, spec the correct ECT/board, add targeted dunnage, and integrate with your case sealer, strapping, and shrink/stretch wrapping equipment.

Ready to Spec Your Mailing Boxes Program?

Tell us your product dimensions, weight, ship method, and target damage rate. Fastpak Systems will recommend the right mailer box style, ECT, closure, and interior protection recipe that minimizes total cost, then validate fit on your line.

Get started now with our packaging and shipping experts.