Best Pick
eBay⚠ DIM +37 lb
22x18x16 Corrugated Shipping Boxes 15/pk
22″ × 18″ × 16″
+$60.50 USPS Ground Advantage · 39 lb billed
$3.30
each
$7.33 landed
pack of 15 · $49.50
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Cheapest 22×18×12 padded mailer
Compare real eBay prices for 22×18×12 shipping boxes with DIM-weight-aware shipping estimates.
Live listings — sorted by landed cost per box
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eBay⚠ DIM +45 lb
GRAINGER APPROVED 55NN20 PK 15 Shipping Box,24x18x18 in 55NN20
24″ × 18″ × 18″
+$72.00 USPS Ground Advantage · 47 lb billed
$3.59
each
$8.39 landed
pack of 15 · $53.85
eBay⚠ DIM +45 lb
24x18x18 Corrugated Shipping Boxes 15/pk
24″ × 18″ × 18″
+$72.00 USPS Ground Advantage · 47 lb billed
$4.63
each
$9.43 landed
pack of 15 · $69.45
eBay⚠ DIM +27 lb
Medium Corrugated Shipping Boxes 22x18x12 - 15 Pack for Storage & Moving
22″ × 18″ × 12″
+$48.90 USPS Ground Advantage · 29 lb billed
$10.20
each
$13.46 landed
pack of 15 · $153.00
eBay⚠ DIM +45 lb
GRAINGER APPROVED 22XM61 PK 10 Shipping Box,24x18x18 in 22XM61
24″ × 18″ × 18″
+$72.00 USPS Ground Advantage · 47 lb billed
$8.68
each
$15.88 landed
pack of 10 · $86.80
eBay⚠ DIM +36 lb
10 - 24 x 18 x 12 Corrugated Shipping Boxes Storage Cartons Moving Packing Box
24″ × 18″ × 12″
+$54.10 UPS Ground · 38 lb billed
$58.90
each
$113.00 landed
Showing 6 of 11 real listings. Want all of them with custom quantity and weight? Search now →
What fits in a 22×18×12 box
A 22 × 18 × 12 inch box holds 4,752 cubic inches (2.75 cu ft) of interior space, putting it in the large-category. It's a popular choice for shipping items like multiple pairs of shoes, small appliances, clothing bundles — things that fit comfortably within those dimensions while leaving room for protective padding. Large boxes at this size are usually sold in smaller bulk packs — 10 to 25 — because storage and shipping of the empty stock itself becomes a consideration.
Shipping math for this size
Shipping cost for this size depends heavily on dimensional weight. For a 22×18×12 box, UPS and FedEx Ground compute a DIM weight of 35 lbs using their 139 divisor, while USPS Ground Advantage uses a 166 divisor, giving 29 lbs. Carriers bill whichever is greater — your actual weight or the DIM weight. USPS's higher divisor makes it roughly 6 lbs cheaper than UPS/FedEx for this size when your item is light, which is why our search results factor in DIM-weight automatically instead of just showing sticker prices.
How to pick the right pack size
When buying a 22×18×12 box, the biggest cost lever isn't which retailer you pick — it's which pack size you commit to. A 100-pack typically costs 2-3× more than a 25-pack but brings the per-unit cost down by 40-60%. Our ranking is based on *cost per useful box*, which gives bonus boxes partial credit — so a 100-pack can still win for single-box needs if the per-unit price is low enough, but a 25-pack often ranks higher when you only need a few. Every listing below links to a real eBay product page; we don't show placeholder results.
Search with your own dimensions
Pre-filled with 22×18×12. Adjust weight, quantity, or size as needed — we'll re-rank for your exact scenario.