what does flat rate mean in shipping

what does flat rate mean in shipping refers to a pricing model where the cost of shipping is fixed, regardless of weight or distance within a specific range. This method is commonly offered by carriers like USPS, which provides flat rate boxes with standard pricing as long as the package fits within the box and doesn’t exceed certain weight limits. Flat rate shipping simplifies budgeting for both businesses and customers, making it easier to calculate shipping costs upfront. It is especially useful for sending heavier items over long distances, where standard pricing based on weight might be more expensive.