
18x12x6 Corrugated Boxes (32 ECT) - Case of 25
18" x 12" x 6" 32-ECT CORRUGATED SHIPPING BOXES
These 18 × 12 × 6 in. corrugated cartons deliver the everyday durability shippers expect from a 32 ECT-C single–wall box. The elongated rectangular design provides ample space for larger, flatter items while maintaining a low profile, perfect for products that require substantial length and width without excessive height.
Supplied flat in a case of 25, the boxes assemble in seconds, store compactly between projects, and recycle easily after use. From e-commerce fulfillment lines to warehouse pick-pack stations, they are the go-to choice for shipping artwork, documents, clothing, flat-pack furniture, and a wide range of large-format merchandise.
VALUE CASE OF 25
Buy in economical 25-count bundles to lower per-box costs and keep your packing line stocked without over-committing valuable storage space.
KEY ADVANTAGES
IDEAL APPLICATIONS
Art & Document Shipping
The 18" x 12" x 6" size is perfect for shipping framed artwork, legal documents, certificates, and large-format prints with secure flat protection.
Apparel & Textiles
Ideal for shipping folded clothing, textiles, bed linens, and fashion accessories that benefit from flat, wrinkle-free packaging.
Books & Media
Perfect for shipping multiple books, magazines, vinyl records, and other flat media items that require protective packaging.
Flat-Pack Assembly
Excellent for shipping flat-pack furniture components, shelving units, and assembly kits that require large, low-profile packaging.
CORRUGATED FIBERBOARD ADVANTAGE
These 18" x 12" x 6" cartons are engineered from single-wall, C-flute corrugated kraft board with a certified 32 ECT (Edge-Crush-Test) rating, giving packers a strong yet lightweight shipping option. The material offers:
- Three-layer construction (liner / medium / liner) that absorbs impact and resists puncture
- 32 ECT rating that meets common carrier requirements for loads up to ≈40 lb (18 kg)
- Kraft liners and starch-based adhesives that are 100 % curbside-recyclable and biodegradable
- Lightweight design that lowers dimensional weight charges and reduces overall freight costs
PERFORMANCE PARAMETERS
32 ECT compliant—capable of withstanding ≈32 lb per linear inch of edge load before failure
Up to 40 lb (18 kg) of evenly distributed contents for typical parcel and LTL shipments
18" L × 12" W × 6" D (0.75 ft³ / 21.2 L) for optimal large-format flat packaging
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
18" x 12" x 6" 32-ECT CORRUGATED SHIPPING BOXES
These 18 × 12 × 6 in. corrugated cartons deliver the everyday durability shippers expect from a 32 ECT-C single–wall box. The elongated rectangular design provides ample space for larger, flatter items while maintaining a low profile, perfect for products that require substantial length and width without excessive height.
Supplied flat in a case of 25, the boxes assemble in seconds, store compactly between projects, and recycle easily after use. From e-commerce fulfillment lines to warehouse pick-pack stations, they are the go-to choice for shipping artwork, documents, clothing, flat-pack furniture, and a wide range of large-format merchandise.
VALUE CASE OF 25
Buy in economical 25-count bundles to lower per-box costs and keep your packing line stocked without over-committing valuable storage space.
KEY ADVANTAGES
IDEAL APPLICATIONS
Art & Document Shipping
The 18" x 12" x 6" size is perfect for shipping framed artwork, legal documents, certificates, and large-format prints with secure flat protection.
Apparel & Textiles
Ideal for shipping folded clothing, textiles, bed linens, and fashion accessories that benefit from flat, wrinkle-free packaging.
Books & Media
Perfect for shipping multiple books, magazines, vinyl records, and other flat media items that require protective packaging.
Flat-Pack Assembly
Excellent for shipping flat-pack furniture components, shelving units, and assembly kits that require large, low-profile packaging.
CORRUGATED FIBERBOARD ADVANTAGE
These 18" x 12" x 6" cartons are engineered from single-wall, C-flute corrugated kraft board with a certified 32 ECT (Edge-Crush-Test) rating, giving packers a strong yet lightweight shipping option. The material offers:
- Three-layer construction (liner / medium / liner) that absorbs impact and resists puncture
- 32 ECT rating that meets common carrier requirements for loads up to ≈40 lb (18 kg)
- Kraft liners and starch-based adhesives that are 100 % curbside-recyclable and biodegradable
- Lightweight design that lowers dimensional weight charges and reduces overall freight costs
PERFORMANCE PARAMETERS
32 ECT compliant—capable of withstanding ≈32 lb per linear inch of edge load before failure
Up to 40 lb (18 kg) of evenly distributed contents for typical parcel and LTL shipments
18" L × 12" W × 6" D (0.75 ft³ / 21.2 L) for optimal large-format flat packaging











