Boxes & Mailers
SELECTION EXPERT ADVICE
Need help choosing boxes?
Pick the right corrugated box without overpaying for size or strength
Use these buying guides to size your box, compare board strength, and avoid dimensional weight surcharges.
Overview
3086 Results
showing boxes & mailers products
18x12x16 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
PN: 181216
18x12x12 ECT-48 Double Wall Boxes w/ Hand Holes - Bundle of 15
PN: HD181212DWHH
18" x 12" x 12" ECT-48 Corrugated Shipping Boxes, 15-Pack
PN: HD1812DW
18x12x12 ECT-32 Multi-Depth Corrugated Boxes - Adjustable Kraft Cartons, Bundle of 25
PN: MD181212
18x12x10 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 15
PN: HD181210DW
18x12x10 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
PN: 181210
18x12x8 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 15
PN: HD18128DW
18x12x8 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack
PN: 18128
18x12x6 ECT-48 Double Wall Boxes - Heavy-Duty Kraft Cartons, Bundle of 15
PN: HD18126DW
18x12x4 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack
PN: 18124
18x12x2 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack
PN: 18122
17x13x13 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
PN: 171313
17x13x7 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
PN: 17137
16x14x12 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
PN: 161412
16x14x10 Double Wall Corrugated Box ECT-48 Kraft - Bundle of 15
PN: HD161410DW
15x15x15 Heavy-Duty ECT-44 Kraft Corrugated Boxes - 40% Stronger, Bundle of 25
PN: HD151515
Product Help Request
Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.
Buying path
Buy Boxes & Mailers by the specs that change the order
Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.
Use filters and product titles to narrow by the specs that affect fit.
Open the product page before ordering a case so you can check quantity, unit, and limits.
Save the SKU or product link for repeat purchasing and support questions.
For pallet, recurring, or mixed-SKU needs, send support the details before placing a large order.
What to check first
- Inside dimensions
- Board grade or strength rating
- Box style and closure
- Case or bundle quantity
Buying FAQ
What should I check before buying Boxes & Mailers?
Compare Inside dimensions, Board grade or strength rating, Box style and closure, Case or bundle quantity before choosing a product from this collection.
Can I buy Boxes & Mailers online?
Use the product grid to open a product page, confirm the SKU, quantity, unit, availability, and price, then add available products to cart.
When should I contact support?
Contact support for pallet, recurring, mixed-SKU, or uncertain-fit orders, or when the product page does not answer the size, quantity, or delivery question.