Custom RSC Shipping Boxes | Regular Slotted Container for E-Commerce and Freight
Standard corrugated shipping case with regular slotted construction — the world's most common box format for efficient shipping
Key Features
About RSC Boxes
RSC (Regular Slotted Container) shipping boxes are the global standard for corrugated shipping packaging — a four-panel box with eight closure flaps (four top, four bottom) that fold in from the four side panels and are slotted at corners to allow folding without overlap interference. The RSC's dominance in shipping packaging reflects its extraordinary production efficiency, supply chain compatibility, and structural performance across the widest range of products and shipping channels of any packaging format in history.
RSC Structural Performance
The RSC's structural performance is measured by edge crush test (ECT) rating — a measurement of the box's resistance to top-load compression applied to the box's vertical edges. Standard 32 ECT RSC boxes are rated for products up to approximately 65 lbs (30 kg) in standard shipping conditions. 44 ECT provides increased compression resistance for heavier or more demanding applications. Double-wall BC-flute RSC boxes provide compression resistance exceeding 200 lbs for industrial and freight shipping.
RSC for E-Commerce
The explosion of direct-to-consumer e-commerce has made the RSC the most frequently printed packaging format in history — branded RSC boxes serving as both shipping container and brand communication vehicle for millions of daily DTC shipments. The e-commerce RSC's design challenge is creating a compelling brand communication in a single delivery context where the consumer has no comparison point — the RSC is the only packaging the consumer sees, making its design the entirety of the brand's physical impression at delivery.
ECT Rating and Product Weight Matching
Matching the RSC's ECT rating to the product weight and shipping channel is the most important corrugated specification decision — overspecifying wastes material cost; underspecifying creates transit damage risk. 32 ECT single-wall is the parcel carrier standard for products up to 65 lbs shipped via UPS, FedEx, and USPS. 44 ECT handles heavier single items and multi-product kits up to 100 lbs. Double-wall BC-flute at 44–48 ECT handles industrial and LTL freight shipments, oversized or fragile items requiring maximum compression resistance, and high-stack warehouse storage configurations. We specify ECT rating based on product weight, shipping channel, and stacking configuration.
Right-Sizing: The Hidden Cost Opportunity
Dimensional weight pricing — the practice by UPS, FedEx, and Amazon of charging the greater of actual weight and dimensional weight (calculated as L×W×H÷139) — has made right-sizing a significant commercial opportunity. An oversized RSC box with excess void fill generates dimensional weight charges that may equal or exceed the actual product weight charge. Right-sizing the RSC to the product's actual dimensions — accepting a snugger fit with minimal void fill — reduces dimensional weight to the actual product weight, potentially reducing per-shipment cost by 15–30% for lightweight products in oversized boxes. For brands shipping thousands of RSC boxes monthly, this right-sizing saving directly reduces the cost of goods sold per shipped unit.
Branded E-Commerce RSC Design Strategy
The e-commerce RSC is the brand's physical delivery touchpoint — the only physical brand impression the consumer receives. Unlike retail shelf packaging where multiple competing products share consumer attention, the e-commerce RSC arrives in a private moment where it has the consumer's full attention during unboxing. This private-attention context makes e-commerce RSC design both highly impactful and uniquely personal — the brand is speaking to one person at a moment of maximum engagement. Effective e-commerce RSC design acknowledges this context: exterior printing that creates excitement before opening, interior printing that rewards the opening moment with brand personality, and packaged inserts that extend the brand relationship into the post-unboxing experience.
Quick Specs
- Minimum Order
- 100 units
- Production Time
- 2-3 weeks
- Free Shipping
- Yes
- Printing
- CMYK / Pantone
Industries
Affordable sample kits available
Popular Use Cases
Other Box Styles
Explore more packaging styles.
Tuck End Boxes
The most versatile folding carton style — tuck flaps on both ends create a clean, secure closure for retail and consumer goods packaging
Magnetic Closure Boxes
Rigid set-up boxes with embedded neodymium magnets creating a satisfying snap closure for luxury brand packaging
Sleeve Boxes
Two-piece inner tray and outer sleeve construction creating a controlled sliding reveal for premium product presentation
Pillow Boxes
Curved oval-ended folding carton that creates a distinctive pillow shape for gifts, accessories, and specialty retail
Gable Boxes
Self-erecting folding carton with a distinctive peaked top handle that serves as both closure and carrying mechanism
Two-Piece Boxes
Classic two-component packaging with separate lid and base for premium retail, gift, and apparel presentation
Available Finishes
Enhance your rsc boxes with premium finishes.
Industries Using RSC Boxes
RSC Boxes FAQs
What ECT rating do I need for my products?
32 ECT single-wall: standard for parcel shipping under 65 lbs via UPS, FedEx, USPS. 44 ECT: for heavier products 65–100 lbs or products with high damage risk requiring additional compression resistance. Double-wall BC-flute: for industrial freight, very heavy products, or high-stack storage requiring maximum compression resistance. We calculate the appropriate ECT rating based on your product weight, shipping channel, and stacking requirements.
Does Amazon require specific box specifications?
Yes. Amazon's Frustration-Free Packaging (FFP) program requires right-sized packaging without excessive void fill, easy-open construction without excessive tape or staples, and recyclable materials. Amazon's SIOC (Ships In Own Container) specification requires the product's retail packaging to function as its own shipping container without outer corrugated. We produce FFP and SIOC-compliant RSC boxes for brands selling on Amazon.
How does dimensional weight affect my shipping costs?
Parcel carriers charge the greater of actual weight or dimensional weight (L×W×H in inches ÷ 139). A 2-lb product in a 14×12×8 box has a dimensional weight of 9.6 lbs — the carrier charges 9.6 lbs, not 2 lbs. Right-sizing to 8×6×4 inches reduces dimensional weight to 1.4 lbs, charged at actual weight of 2 lbs. This right-sizing can reduce per-shipment cost by 20–30% for lightweight products in standard-sized boxes.
Can RSC boxes include perforated tear strips for easy opening?
Yes. Perforated tear strips allow consumers to open RSC boxes without tools — a significant improvement over tape-sealed boxes. Tear strips are engineered into the RSC design during die-cutting. They are particularly popular for e-commerce brands wanting to improve the unboxing experience, and for Amazon FFP-compliant packaging that specifies easy-open construction.
What is the minimum order for custom branded RSC shipping boxes?
Our minimum order is 100 units for custom-printed RSC shipping boxes using digital corrugated printing. Flexographic printing becomes more economical above 500–1,000 units depending on box size and print complexity. Standard (unprinted) RSC boxes are available without minimum quantity requirements.
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