
14.5" x 18.5" Polyjacket/Polymailer — 400 Envelopes
14.5″ × 18.5″ × 0″
+$0.00 Seller Free shipping · 3 lb billed
$0.290
landed per box
pack of 400 · $116.00
Compare real eBay prices for 16×12×10 shipping boxes with DIM-weight-aware shipping estimates.

14.5″ × 18.5″ × 0″
+$0.00 Seller Free shipping · 3 lb billed
$0.290
landed per box
pack of 400 · $116.00

16″ × 12″ × 12″
+$9.99 Seller Calculated · 14 lb billed
$1.51
landed per box
$1.07 each
pack of 25 · $26.75

16″ × 12″ × 10″
+$0.00 Seller Free shipping · 12 lb billed
$1.58
landed per box
pack of 25 · $39.50

16″ × 12″ × 10″
+$9.99 Seller Calculated · 12 lb billed
$1.59
landed per box
$1.19 each
pack of 25 · $29.75

16″ × 12″ × 10″
+$0.00 Seller Free shipping · 12 lb billed
$1.88
landed per box
pack of 100 · $188.00

16″ × 12″ × 10″
+$0.00 Seller Free shipping · 12 lb billed
$1.93
landed per box
pack of 25 · $48.25
Showing 6 of 19 real listings. Want all of them with custom quantity and weight? Search now →
A 16 × 12 × 10 inch box holds 1,920 cubic inches (1.11 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 cost for this size depends heavily on dimensional weight. For a 16×12×10 box, UPS and FedEx Ground compute a DIM weight of 14 lbs using their 139 divisor, while USPS Ground Advantage uses a 166 divisor, giving 12 lbs. Carriers bill whichever is greater — your actual weight or the DIM weight. USPS's higher divisor makes it roughly 2 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.
When buying a 16×12×10 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 **landed cost per box** — the pack price plus shipping, divided by the number of boxes. A 100-pack with $10 shipping works out cheaper per box than a 25-pack with the same shipping, because the fixed cost spreads further. Every listing below links to a real product page from eBay, ULINE, or other retailers; we don't show placeholder results.
Pre-filled with 16×12×10. Adjust weight, quantity, or size as needed — we'll re-rank for your exact scenario.
NiceBoxFinder may earn a commission from qualifying purchases made through links on this site. Prices and availability are updated frequently but are not guaranteed. We keep search 100% free — no signups, no paywalls.