Flat cardboard mailing envelopes

You're looking for flat cardboard mailing envelopes! Those are also known as "flat rate envelopes" or "flat rate boxes." Here are some details and options:

What are flat cardboard mailing envelopes?

Flat cardboard mailing envelopes are sturdy, flat envelopes made of cardboard that can be used for shipping lightweight items. They are designed to provide extra protection and cushioning for fragile items, and they can be reused multiple times.

Benefits:

  1. Cost-effective: Flat cardboard mailing envelopes are often cheaper than traditional envelopes or boxes.
  2. Easy to use: They are simple to assemble and require no tape or glue.
  3. Reusable: You can reuse them multiple times, making them a sustainable option.
  4. Protective: They provide excellent protection for fragile items.

Types of flat cardboard mailing envelopes:

  1. Standard flat rate envelopes: These are the most common type, available in various sizes (e.g., 6" x 11", 9" x 12", 12" x 15").
  2. Large flat rate envelopes: These are ideal for shipping larger or heavier items (e.g., 12" x 18", 15" x 20").
  3. Custom flat rate envelopes: Some companies offer custom sizes and designs for specific industries or applications.

Where to buy flat cardboard mailing envelopes:

  1. Online retailers: Amazon, Office Depot, Staples, and other online retailers carry a variety of flat cardboard mailing envelopes.
  2. Office supply stores: Visit local office supply stores like Office Depot, Staples, or FedEx Office for a selection of flat cardboard mailing envelopes.
  3. Shipping supply stores: Specialty stores that focus on shipping supplies, like UPS Store or FedEx Store, may carry a range of flat cardboard mailing envelopes.

Tips for using flat cardboard mailing envelopes:

  1. Measure your item carefully: Ensure your item fits comfortably within the envelope to prevent damage during shipping.
  2. Use packing materials: Add packing materials like bubble wrap, packing peanuts, or paper fill to protect fragile items.
  3. Seal the envelope: Use packing tape or a strong adhesive to seal the envelope securely.

I hope this information helps you find the perfect flat cardboard mailing envelopes for your shipping needs!