BoxFactory will help make the box you need! Same-day shipping available
Looking for low-quantity (MOQ 1) shipping boxes in the size you want? Check our sister website PackMart.com — same-day shipping available!
Custom Shipping Boxes Built for Your Business
BoxFactory specializes in bulk production of plain kraft RSC boxes in any size. 32ECT, 44ECT, and 48ECT options available with quick turnaround for emergency orders.
Custom Size
Production
Nationwide
Pallet Quantities
Bulk orders designed for businesses
Choose Your Box Strength
All boxes are plain kraft RSC (Regular Slotted Container) style — no printing
32ECT Single Wall
Ideal for lightweight products up to 65 lbs. Perfect for e-commerce and general shipping needs.
Max Weight Capacity
65 lbs
- Most Economic Option
- Up to 65 lbs capacity
- E-commerce ready
- Fast production
44ECT Single Wall
Superior strength for heavier items. Great choice for standard shipping applications requiring extra durability.
Max Weight Capacity
95 lbs
- Enhanced durability
- Up to 95 lbs capacity
- Industry standard
- Versatile use
48ECT Double Wall
Maximum protection for heavy or fragile items. Double-wall construction for demanding applications.
Max Weight Capacity
120 lbs
- Maximum strength
- Up to 120 lbs capacity
- Double-wall protection
- Heavy-duty
Popular Box Sizes
Browse our most requested dimensions — or request any custom size you need
6 x 6 x 6"
8 x 6 x 4"
10 x 10 x 10"
12 x 9 x 6"
12 x 12 x 12"
14 x 14 x 14"
16 x 12 x 8"
18 x 14 x 12"
18 x 18 x 16"
20 x 20 x 20"
24 x 18 x 18"
24 x 24 x 24"
Need a Custom Size?
We manufacture custom boxes in any dimension. Tell us what you need.
Request Custom SizeHow to Order Custom Boxes
Getting custom corrugated boxes from BoxFactory is simple. From quote to delivery, we make the process straightforward so you can focus on your business.
Submit Your Specifications
Tell us your exact box dimensions (length x width x height), preferred ECT rating, and quantity needed. Not sure what you need? Our team can help you determine the right specifications.
Receive Your Quote
We'll provide a detailed quote including per-box pricing, pallet configuration, and freight estimates. Volume discounts automatically applied for larger orders.
Production Begins
Once approved, your custom boxes enter production. Standard orders ship within days. Need them faster? Ask about our same-day and rush production options for urgent orders.
Delivery to Your Door
Boxes are palletized and shrink-wrapped for protection. We ship nationwide via freight carriers with tracking included. LTL and full truckload options available.
How to Measure for Custom Boxes
Getting the right box size is crucial for protecting your products and minimizing shipping costs. Here's how to measure correctly for RSC (Regular Slotted Container) boxes.
Inside Dimensions (L x W x H)
Box dimensions are always expressed as inside dimensions in the order of Length x Width x Height.
- Length:The longest side of the box opening
- Width:The shorter side of the box opening
- Height:The distance from top to bottom (perpendicular to flaps)
Pro Tip: Add Clearance
Add 1/4" to 1/2" to each dimension for packing materials and easy insertion. A box that's too tight can damage products; one that's too loose wastes space and materials.
Understanding ECT Ratings
ECT (Edge Crush Test) measures how much force a box can withstand before crushing. Higher ECT means stronger boxes that can support more weight when stacked.
32 ECT Single Wall
Most PopularWithstands 32 lbs per linear inch of edge crush pressure. Equivalent to 200# burst test.
Best for: Lightweight items up to 65 lbs, e-commerce, apparel, small electronics
44 ECT Single Wall
Withstands 44 lbs per linear inch. Equivalent to 275# burst test. Stronger fluting for added protection.
Best for: Medium-weight items up to 80 lbs, food products, auto parts, retail goods
48 ECT Double Wall
Double-wall construction with two layers of fluting. Superior stacking strength and puncture resistance.
Best for: Heavy items 80+ lbs, fragile equipment, industrial parts, long-term storage
Box Strength Calculator
Find the right ECT rating for your product
Common Uses for Custom Shipping Boxes
From e-commerce to wine shipping, BoxFactory provides custom corrugated boxes for businesses across every industry.
E-Commerce Shipping
Custom boxes sized perfectly for your products reduce shipping costs and improve unboxing experience.
Common sizes: 6x4x4 to 24x18x18
Beverage & Bottle Shipping
Heavy-duty boxes designed to protect glass bottles during transit. Wine clubs, breweries, and distilleries.
Common sizes: 12x12x14 to 20x14x20
Electronics Packaging
Precisely sized boxes for computers, components, and consumer electronics with room for protective padding.
Common sizes: 8x6x4 to 30x24x24
Medical & Pharmaceutical
Clean kraft boxes for medical supplies, supplements, and pharmaceutical distribution.
Common sizes: 4x4x4 to 18x12x12
Books & Media
Snug-fitting boxes that minimize movement and protect corners during shipping.
Common sizes: 10x8x4 to 18x14x6
Food & Grocery
Subscription boxes, meal kits, and grocery delivery packaging in food-safe kraft material.
Common sizes: 10x10x6 to 20x16x12
Subscription Boxes
Monthly subscription services rely on consistent, well-sized boxes for their recurring shipments.
Common sizes: 8x6x4 to 14x10x6
Gifts & Specialty Items
Gift baskets, specialty foods, and curated boxes that need custom dimensions.
Common sizes: 6x6x6 to 20x20x10
Why Choose BoxFactory
We specialize in custom corrugated boxes for businesses that need reliable packaging
Pallet Quantities
Bulk orders designed for businesses with competitive pricing on volume.
Fast Turnaround
Quick production with same-day options for emergency orders.
Direct Pricing
Manufacturer-direct pricing. No middleman markup.
Nationwide Shipping
We ship anywhere in the continental US with freight quotes included.
Industries We Serve
BoxFactory partners with businesses across diverse industries for high-volume shipping needs
Frequently Asked Questions About Custom Boxes
Get answers to common questions about ordering custom corrugated shipping boxes.
BoxFactory specializes in pallet quantities, which typically start at 100-500 boxes depending on the size. For smaller quantities (MOQ 1), visit our sister site PackMart.com which offers same-day shipping on individual boxes.
RSC stands for Regular Slotted Container, the most common box style used for shipping. RSC boxes have four flaps on top and bottom that meet in the middle when closed. They're efficient to manufacture, easy to assemble, and provide excellent protection for most products.
Standard production time varies based on quantity and current capacity. For urgent orders, we offer same-day and rush production options. Contact us with your timeline and we'll let you know what's possible.
ECT (Edge Crush Test) measures stacking strength - how much vertical pressure a box can handle. Mullen test measures puncture resistance. ECT is now the industry standard as it better predicts real-world performance. Our 32 ECT equals 200# Mullen, 44 ECT equals 275# Mullen.
Yes! We manufacture custom boxes to your exact specifications. Whether you need a small 4x4x4 box or a large 48x40x36 pallet container, we can produce it. Just provide your inside dimensions (L x W x H) and we'll quote it.
BoxFactory specializes in plain kraft corrugated boxes without printing. This allows us to offer the most competitive pricing and fastest turnaround times for bulk orders. For printed packaging, we can refer you to our printing partners.
We ship nationwide across the continental United States. Freight quotes are included with every estimate. We offer both LTL (less than truckload) and full truckload shipping options depending on your order size.
Boxes are shipped flat (knocked down) on pallets and shrink-wrapped for protection. This maximizes shipping efficiency and keeps your boxes clean and undamaged during transit. Assembly is quick and easy - no tape required to form the box.
Tell us what you're shipping and the approximate weight, and we'll recommend the appropriate ECT rating. When in doubt, 32 ECT handles most standard shipping needs for items up to 65 lbs. Heavier items or those requiring stacking may need 44 ECT or 48 ECT double wall.
Yes, pricing decreases as quantity increases. Pallet quantities receive better per-box pricing than smaller orders. Multi-pallet and truckload orders receive additional discounts. Request a quote to see pricing for your specific quantity.
Get Your Custom Quote
Fill out the form and we'll provide a detailed quote within 24 hours. No obligation, no pressure.