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Flat Shipping and Packing Boxes

Flat shipping and packing boxes designed for efficient storage and transportation of flat, fragile, or oversized items. Our comprehensive selection includes side-loading, telescoping, and specialty flat boxes with adjustable sizing, self-seal closures, and heavy-duty protection for secure shipping across industries.

Our Range of Products

Side Loading Stayflats Lite® Mailers

Self-seal Adhesive Strips
Easy Open Tear Strip
ECT-32 White Corrugated

4-Piece Flat Boxes

Custom Fit Design
Glass Product Safe
Four-piece Construction

Telescopic Flat Boxes

Adjustable Two-piece Design
FOL Bottom Strength
Custom Height Adjustment

White Side Loading Locking Mailers

Quick Assembly Design
Snug-fitting Tabs
Literature Perfect Fit

20 x 8 x 60" Side Loading Boxes

End Insertion Loading
Full Overlap Flaps
20 x 8 x 60 inch Size

Self-Seal Side Loading Boxes

Self-seal Closure
Easy Open Tear Strip
Full Overlapping Flaps

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Frequently Asked Questions

What is a flat pack box?

A flat pack box is a corrugated shipping container designed for easy storage when empty and assembly when needed, ideal for flat or shallow items.

What ECT ratings are available for flat shipping boxes?

Can flat boxes be customized for specific dimensions?

Are self-seal flat boxes available without tape?

What's the difference between side-loading and regular flat boxes?

Do you offer volume pricing for bulk flat box orders?

How quickly can flat shipping boxes be delivered nationwide?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

E-commerce & Retail

Flat boxes perfect for shipping artwork, frames, books, and thin products with secure packaging.

Manufacturing

Heavy-duty flat boxes for shipping components, parts, and products requiring adjustable sizing.

Moving & Relocation

Specialty flat boxes designed for fragile glass items with printed warnings and protective features.

Document & Literature

White corrugated mailers with locking tabs perfect for business correspondence and document protection.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Flat Shipping Boxes for Art Packaging

Specialized flat shipping boxes designed for safe art packaging and transportation. Our corrugated solutions feature adjustable designs, heavy-duty protection, and side-loading convenience to ensure artwork, frames, and fragile items arrive undamaged. Available in multiple configurations with nationwide delivery.

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Flat Shipping Boxes: Corrugated Options

Explore Alliance Packaging Group's comprehensive selection of flat shipping boxes designed for secure transportation of delicate items. Our corrugated flat boxes feature specialized designs including telescoping options, side loading configurations, and self-seal closures for maximum protection during transit.

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Boxes for Packing Fragile Items Safely

Professional boxes designed specifically for safely packing and shipping fragile items including glassware, lamps, dishes, and delicate products. Our corrugated solutions feature specialized designs, foam protection, and reinforced construction to prevent damage during transit and storage.

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Why Manufacturing and Logistics Companies Choose Alliance Packaging Group

Factory Direct Pricing

Lower costs than industry standard with competitive volume pricing programs and immediate inventory availability.

Just-in-Time Delivery

Nationwide delivery programs with over 10,000 products in stock for same-day shipment across America.

Custom Solutions Engineering

Experienced engineering team provides tailored packaging solutions and expert consultation for specialized requirements.

Get Expert Packaging Solutions for Your Flat Shipping Needs

Connect with our packaging specialists for custom quotes, technical guidance, and volume pricing on flat boxes.

For immediate assistance, feel free to give us a direct call at 770-309-1012 You can also send us a quick email at sales@apg-go.com

Contact Us Today

For immediate assistance, feel free to give us a direct call at 770-309-1012 You can also send us a quick email at sales@apg-go.com

Flat Shipping and Packing Boxes

Didn't find what you're looking for?