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Product specification table
Specification Details
Product Name Side-Loading Shipping Boxes
Size 28 × 4 × 24 Inches
Pack Quantity 100 Boxes
Approx. Unit Price $4.50 Each
Box Style Side-Loading Shipping Carton
Structure Wide, Shallow Shipping Box
Recommended Use Shipping, storage and commercial fulfillment
Best For Frames, artwork, signs, panels and flat merchandise
Storage Ships / stores flat before assembly
Availability In Stock
Customization Custom dimensions, printing, branding and quantities available

Side-Loading Shipping Boxes for Long & Flat Products

Our Side-Loading Shipping Boxes are designed for products that are easier to insert from the side rather than through the top of a conventional shipping carton. The 28 × 4 × 24 inch box provides a wide, shallow format suited to flat or rectangular products that need dependable outer protection during storage, fulfillment, and transportation.

These boxes are especially useful for ecommerce businesses, retailers, manufacturers, galleries, print shops, fulfillment centers, and B2B operations handling larger flat merchandise.

Why Choose Side-Loading Shipping Boxes?

  • Side-opening design simplifies packing of wide and flat products
  • 28 × 4 × 24 inch dimensions for larger merchandise
  • Suitable for shipping, storage, and B2B fulfillment
  • Helps protect products from handling and exterior contact
  • Flat profile reduces unnecessary carton depth
  • Useful for artwork, frames, signs, panels, and similar products
  • Stores flat before assembly
  • Available as an in-stock shipping box
  • Custom sizes, logo printing, artwork, and quantities are also available

What Can You Ship in Side-Loading Boxes?

Product specification table
Product Type Suitability
Framed Artwork Excellent
Picture Frames Excellent
Signs & Printed Panels Excellent
Flat Retail Products Excellent
Mirrors Good – cushioning recommended
Posters & Mounted Prints Excellent
Decorative Panels Good
Fragile Glass Products Additional protective packing required

Side-Loading Design for Easier Packing

Unlike a standard top-loading carton, a side-loading shipping box allows products to slide into the package through a wider opening. This can make packing easier for objects with a large surface area but relatively little depth.

The 28 × 4 × 24 shipping box is particularly suited to flat merchandise where a deep conventional carton could create unnecessary empty space.

Shipping Boxes for Artwork, Frames & Flat Products

Businesses shipping artwork, picture frames, signs, display panels, and similar merchandise need packaging that matches the shape of the product. Flat shipping boxes provide a more appropriate profile while still offering the structural benefits of a shipping carton.

For delicate products such as glass frames or mirrors, suitable internal cushioning, corner protectors, inserts, or protective wrapping should be added according to the product's fragility.

In-Stock or Custom Side-Loading Boxes

Choose our in-stock side-loading shipping boxes when you need a ready-to-order carton for everyday fulfillment. Businesses requiring a different size or branded presentation can also order custom side-loading boxes designed around their products.

Custom options may include:

  • Custom dimensions
  • Logo and brand printing
  • Custom artwork
  • Different board specifications
  • Inserts or protective components
  • Custom order quantities

This gives businesses the flexibility to use stock cartons for immediate shipping requirements or move to custom printed shipping boxes for product-specific packaging and branding.

Side-loading shipping boxes are cartons designed so products can be inserted through a side opening rather than only through the top. They are particularly useful for wide, flat, and shallow products.

This size can be suitable for picture frames, artwork, printed panels, signs, mounted prints, decorative products, and other wide or flat merchandise. Actual fit should always be checked against the packed product dimensions.

The main advantage is easier insertion of large flat products. It can also provide a closer package fit for products that do not require a deep conventional shipping carton.

Yes. Side-loading cartons are suitable for manufacturers, distributors, print businesses, galleries, retailers, and other B2B operations handling flat or oversized merchandise.

Yes. Custom printed side-loading boxes can be produced with company logos, brand graphics, handling information, or other approved artwork.

Order Side-Loading Shipping Boxes from The Customized Packaging

We manufacture Side-Loading Shipping Boxes for businesses that need reliable product protection, accurate printing, and professional packaging for retail, ecommerce, storage, or shipping. Each box can be customized by size, material, structure, printing, coatings, finishes, inserts, and order quantity.

Share your artwork and quantity targets for Side-Loading Shipping Boxes and we will recommend the most cost-effective structure for your timeline. or speak with a packaging expert. Browse custom rigid boxes, packaging inserts, and use our custom box cost estimator.