145.zip Apr 2026

To qualify under these standards, the pieces must meet specific dimensions:

: More than 6-1/8 inches but not more than 12 inches high.

: All mailpieces must be separated by delivery route or Post Office Box section. 145.zip

: Must be rectangular with square or slightly rounded corners (maximum 0.125-inch radius). Alternative Reference: KUIU ULTRA Merino 145 Zip-T Go to product viewer dialog for this item.

: Delivery statistics and route information must be obtained using the USPS EDDM web tool . Physical Standards for 145 Flats To qualify under these standards, the pieces must

This section outlines the requirements for preparing EDDM-Retail flats to ensure they are accepted for delivery.

If your request refers to technical text for a product description, "145 Zip" often refers to the from KUIU . Material : Uses Nuyarn® Merino technology. Alternative Reference: KUIU ULTRA Merino 145 Zip-T Go

: Mailings must consist of at least 200 pieces (or 50 pounds) but no more than 5,000 pieces per day per 5-digit ZIP Code.