Packrift · Fulfillment Guide

The best 3PL packaging is not one SKU — it's a stock profile: a short carton range, two mailer sizes, one tape spec, one fill default, film, and 4×6 labels, replenished in case quantities against weekly burn. A 3PL buys the same packaging every month for many clients at once, so the win is cost per shipment across the whole wall, not the cleverest single box. Build the profile below.

Stock profile by client type → The six restock lanes Build the profile Bulk quote
FIG. 1 — STATION WALL · ONE RANGE, MANY CLIENTS consumables · case qty on the shelf carton range · 4 sizes ≈ most orders 6×6×6 10×10×10 12×12×6 16×12×8 one lane per profile, not per client
01 — START WITH THE CLIENT MIX

Stock profile by client type

Group clients by pack profile, not by name — three apparel brands are one lane. Find the programs you run, read across, start from a real SKU.

Client program Primary pack Protection Seal & label Start here
Apparel & soft goodsfashion brands, team merch, returns-heavy programs Poly mailers10×13 for singles, 14.5×19 for multis — lightest outbound there is. Clear poly bag per unit: keeps folds clean, survives the return leg. No rigid protection needed. Self-seal strip — no tape at the station. 4×6 direct thermal label. 10×13 mailers · 1,000 → 10×14 flat bags · 1,000 →
Subscription boxes & kitsbeauty, snacks, quarterly drops, influencer sends Mailer boxes9×6.25×2 up to 10×10×2 covers most kit footprints. Tissue over kraft crumple. The kit sits snug — presentation fails the moment it rattles. Tuck flap closes without tape. 4×6 direct thermal label. 10×10×2 mailer · 50 → Indented kraft roll →
Electronics & small hard goodsaccessories, parts, resellers Cube cartons6×6×6 and 10×10×10 hold odd shapes without dead cube. Anti-static bag on anything with a board, then kraft crumple to stop movement. 2" acrylic tape, single strip. 4×6 direct thermal label. Anti-static bags · 1,000 → 6×6×6 cube · 25 →
Home goods & mixed catalogskitchen, decor, multi-SKU orders Carton range12×12×6 to 16×12×8; multi-depth flexes one slot across depths. Kraft crumple as default; air pillows once daily volume makes paper the bottleneck. 2"×110 yd tape, H-seal on heavier packs. 4×6 direct thermal label. 16×12×8 · 25 → Multi-depth 12×12×12 →
B2B & retail transfercase packs, store replenishment, pallet in and out Cases on palletsCase cartons stretch-wrapped to the load spec. Film gauge matched to load weight; corners aligned before the first wrap. Hand film to ~15 pallets a day, machine film past it. Pallet-level labels. 15" hand film · 4 → 20" machine film →

Client-specific packaging earns a slot only at sustained volume — everything else rides the shared range. Running the numbers on what the wall costs you per order? Compare against the 3PL packaging spend benchmark.

02 — THE SIX RESTOCK LANES

What a 3PL actually keeps on the wall

Every SKU below is real and in the Packrift catalog — open one for current dimensions and case counts. Honest downsides included, because the wrong lane shows up as labor and damage claims, not at checkout.

The run-rate lane

Corrugated cartons

Four to six sizes cover most parcel work. Single-wall ECT-32 is the workhorse; multi-depth boxes score down to several depths so one slot covers a client's whole catalog.

  • +25-pack bundles rack cleanly — one bundle per slot, count by eye.
  • +Multi-depth flexes with a changing client mix without a new SKU.
  • −An oversized default bills dimensional weight on every order it touches.
  • −A size per client turns the rack into a museum — profiles, not clients.
Real SKUs 6×6×6 ECT-32 cube · 25-pack→ 10×10×10 ECT-32 · 25-pack→ 12×12×6 ECT-32 · 25-pack→ 16×12×8 ECT-32 · 25-pack→ 12×12×12 multi-depth · 25-pack→

Browse: corrugated boxes · shipping boxes — size the range with the box-size guide

The apparel lane

Poly mailers & poly bags

The cheapest cube in the building: mailers store flat by the thousand and ship at the item's own weight. Bag each unit in clear poly so the garment survives the pick, the pack, and the return.

  • +1,000-count cases fit on one shelf — a month of a client's volume in arm's reach.
  • +Self-seal strip removes tape from the station entirely.
  • −Zero crush protection — anything rigid or breakable moves to a carton.
  • −Thin film tears in rough sortation; match mil to contents, not to habit.
Real SKUs 10×13 poly mailers 2.5 mil · 1,000→ 14.5×19 poly mailers · 500/case→ 10×14 2 mil flat bags · 1,000/case→ 10×16 anti-static bags · 1,000/case→

Browse: poly mailers · poly bags — sizes and mils in the reference chart

The presentation lane

Mailer boxes

For subscription and kit clients where the unboxing is part of the product. Crush-resistant corrugated mailers fold from flat blanks and close with a tuck — no tape line on the presentation face.

  • +Ships and stores flat; erects at the station without tooling.
  • +Shallow footprints (1.5"–3" deep) hold kits snug without fill mountains.
  • −Slower to erect than a taped carton — cost shows up as station time.
  • −Runs above a plain carton per unit; reserve it for programs that need it.
Real SKUs 9×6.25×2 kraft mailer · 50-pack→ 10×8×1.5 kraft mailer · 50-pack→ 10×10×2 kraft deluxe · 50/bundle→

Browse: mailer boxes — mailer or carton? the three-way comparison

The consumable that never stops

Carton-sealing tape

Tape is bought by the case and burned by the hour, so the spec matters more than the brand: 2" wide, 110-yard rolls, one grade for the whole floor unless a client's cartons demand otherwise.

  • +110-yd rolls halve changeovers against 55-yd rolls at the same station.
  • +Quiet-release acrylic keeps all-day benches sane and ages well in hot warehouses.
  • −Bargain thin-mil tape doubles pulls — two strips that split cost more than one that holds.
  • −One-strip seals on heavy packs fail in transit; H-seal past the carton's easy weight.
Real SKUs 2"×110 yd acrylic, quiet release · 36→ 2"×110 yd 2.0 mil crystal clear · 36→ 2"×110 yd tan 371 industrial · 6→

Browse: packing tape · carton-sealing tape

The damage-claims lane

Void fill

Fill is what stands between a mixed-catalog client and their damage rate. Kraft paper is the floor-wide default — one recyclable material wraps, beds, and fills. Pillows take over when paper becomes the bottleneck.

  • +Kraft rolls feed every station from one SKU — no equipment, no changeover.
  • +Air pillows are the fastest fill at ecommerce volume; film stores dense, inflates at the bench.
  • −Fill can't fix an oversized carton — right-size the range first.
  • −Peanuts freight in at full volume; at 3PL scale that inbound cube is real money.
Real SKUs 24" × 300' indented kraft roll→ 18" × 1200' recycled kraft · 30 lb→ 9×11" Fill-Air RF pillows · 250→

Browse: void fill — the full material head-to-head lives in types of void fill

The outbound lane

Dock film & label station

The two consumables every order touches on its way out: stretch film on anything palletized, and a 4×6 direct thermal label on everything else. Standardize both and reorder on burn, not on panic.

  • +4×6 direct thermal is the carrier default — no ribbon, one spec for every client.
  • +Fanfold stacks feed high-volume printers without roll swaps mid-wave.
  • −Hand-wrapping past ~15 pallets a day is a labor line item, not a film decision.
  • −Under-gauged film means rewrapping at the dock — match gauge to the load spec.
Real SKUs 15" 80 ga hand film · 4 rolls→ 20" 80 ga machine film · 5,000'→ 4×6 direct thermal · 1,000/roll→ 4×6 DT fanfold · 2,000 labels→

Browse: stretch film · shipping labels — pallet math in bulk stretch film

03 — RUN IT LIKE INVENTORY

Build the stock profile in five steps

Packaging is the one SKU set a 3PL owns outright, so run it like client inventory: profiles, reorder points, one review a quarter.

1

Audit the client mix

Packed dimensions — not product dimensions — and weekly order volume for each client. Group by pack profile: apparel, kits, hard goods, pallet lanes.

2

Collapse to one carton range

Four to six sizes should cover most parcel orders; multi-depth boxes absorb the odd depths. Size the range with the box-size guide before adding a single SKU.

3

Set case quantities from weekly burn

Reorder point = weekly usage × lead time, plus a safety margin. Count bundles on the rack, not units — that's what the 25-packs and 1,000-counts are for.

4

Standardize the consumables

One tape spec, one label spec, one fill default across every client. Exceptions earn their slot with sustained volume, or they ride the shared wall.

5

Route the repeats

Known repeats go through reorder by SKU. Multi-SKU monthly replenishment across clients or warehouses goes through a bulk quote, reviewed as one order.

max = case qty in min = burn × lead time CASE one slot per SKU · reorder at min · top to max

Case quantity is a freight decision

A 3PL never buys one box, so the number that matters is landed cost per unit — the case plus the freight to get it to your dock, divided by the units inside. The same inbound freight line spreads across 100 units or 1,000; bigger cases and consolidated orders amortize it down. That's the honest reason case counts exist, and it's why single-carton orders of heavy goods can carry freight that rivals the product itself.

Outbound, the physics flip: carriers bill the greater of actual and dimensional weight, so an oversized default carton pays its full cube on every parcel, every day. Right-size the range first; the wall gets cheaper on both ends. We publish the underlying numbers instead of hiding them.

Open the cost & cube index →
LANDED COST PER UNIT
landed / unit = (case + inbound freight) ÷ units per case
same freight ÷ 10× the units = amortized
DIMENSIONAL WEIGHT (US domestic)
dim lb = (L × W × H) ÷ 139
example — the 16×12×8 in the range
= 1536 ÷ 139 ≈ 11.1 lb billable
…on every order that box ships, forever.

Multi-warehouse or multi-client replenishment? Put the whole list on one bulk quote and review it as a single order.

04 — QUICK ANSWERS

3PL packaging questions, answered

What packaging should a 3PL keep in stock?

A working floor stocks six lanes: a carton range of four to six corrugated sizes, poly mailers with clear poly bags for apparel, shallow mailer boxes for kit and subscription clients, carton-sealing tape in 110-yard case quantities, a void-fill default such as kraft paper, and stretch film plus 4x6 direct thermal labels for outbound. Program-specific exceptions ride on top of that shared wall.

How many box sizes should a fulfillment center stock?

Four to six sizes cover most parcel operations — for example a 6x6x6 and 10x10x10 cube, a 12x12x6 flat, and a 16x12x8, with a multi-depth box absorbing odd depths. Add a size only when order data shows an actual gap, because every extra SKU costs a rack slot and a reorder line.

Should each 3PL client get its own packaging?

No — group clients into pack profiles and run one lane per profile. Three apparel clients share one poly-mailer lane. Client-specific packaging such as branded mailer boxes earns its own slot only at sustained volume; everything else rides the shared range.

When should a 3PL use a bulk quote instead of reordering?

Reorder by SKU when the repeats are known and the quantities are steady. Use a bulk quote when the order combines several packaging SKUs, repeats monthly, serves multiple client programs or warehouses, or needs destination and timing reviewed together as one order.

How do fulfillment centers avoid buying the wrong packaging?

Map each workflow to the packed item before buying: packed dimensions, protection requirement, closure method, label size, pack-station speed, case quantity, and the reorder path. Most wrong buys are a right product at the wrong size or case count — the audit is cheaper than the rack of regret.

PACKRIFT · One range, many clients, counted weekly. US domestic, shipped from five US warehouses. Confirm current dimensions and case counts on each product page before ordering.