Best Pick
eBay Brand Central12" x 15" Polyjacket/Polymailer — 400 Envelopes
12″ × 15″ × 0″
+$0.00 Seller Free shipping · 3 lb billed
$0.230
landed per box
pack of 400 · $92.00
← NiceBoxFindereBay Brand Central 
eBay Brand CentralBuy →
Buy →
⚠ DIM +2 lb100% Perfect fitBuy →
⚠ DIM +2 lb100% Perfect fitBuy →
⚠ DIM +2 lb100% Perfect fitBuy →
Cheapest 14×10×4 padded mailer
Compare real eBay prices for 14×10×4 shipping boxes with DIM-weight-aware shipping estimates.
Live listings — sorted by landed cost per box
eBay Brand CentralBuy →
eBay Brand Central14.5" 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
60 Pack Mailing Envelopes, 14x11 Inches Cardboard Envelopes Rigid Mailers wit...
14″ × 11″ × 0″
+$0.00 Seller Free shipping · 3 lb billed
$0.690
landed per box
pack of 60 · $41.40
⚠ DIM +2 lb100% Perfect fit100 14x10x4 Shipping Boxs Packing Mailing Storage Corrugated Box 3 mm Thickness
14″ × 10″ × 4″
+$0.00 Seller Free shipping · 4 lb billed
$0.700
landed per box
pack of 100 · $70.00
⚠ DIM +2 lb100% Perfect fit100 14x10x4 Cardboard Paper Boxes Mailing Packing Shipping Box Corrugated Carton
14″ × 10″ × 4″
+$0.00 Seller Free shipping · 4 lb billed
$0.700
landed per box
pack of 100 · $70.00
⚠ DIM +2 lb100% Perfect fit50 14x10x4 Cardboard Paper Boxes Mailing Packing Shipping Box Corrugated Carton
14″ × 10″ × 4″
+$0.00 Seller Free shipping · 4 lb billed
$0.800
landed per box
pack of 50 · $40.00
Showing 6 of 46 real listings. Want all of them with custom quantity and weight? Search now →
What fits in a 14×10×4 box
A 14 × 10 × 4 inch box holds 560 cubic inches (0.32 cu ft) of interior space, putting it in the medium-category. It's a popular choice for shipping items like hardcover books, shoes, small electronics — things that fit comfortably within those dimensions while leaving room for protective padding. Bulk packs of 25, 50, and 100 are the common listing sizes, with per-unit pricing typically between $0.60 and $2.00 depending on quantity and seller.
Shipping math for this size
Shipping cost for this size depends heavily on dimensional weight. For a 14×10×4 box, UPS and FedEx Ground compute a DIM weight of 5 lbs using their 139 divisor, while USPS Ground Advantage uses a 166 divisor, giving 4 lbs. Carriers bill whichever is greater — your actual weight or the DIM weight. USPS's higher divisor makes it roughly 1 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 14×10×4 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.
Search with your own dimensions
Pre-filled with 14×10×4. Adjust weight, quantity, or size as needed — we'll re-rank for your exact scenario.