15x20x4" Expansion Poly Mailers, 2.5 Mil, Self-Seal, Case of 100 dimensional weight benchmark

Screen whether listed dimensions can create parcel DIM-weight exposure before a buyer standardizes a SKU. This page is generated from Packrift's top-1,000 exact-spec feed plus SKU/title/URL enrichment from the local product graph.

View on Packrift Open variant URL More Dimensional Weight Benchmark

Benchmark question

Screen whether listed dimensions can create parcel DIM-weight exposure before a buyer standardizes a SKU.

Source facts

SKU	EPM15204
Title	15x20x4" Expansion Poly Mailers, 2.5 Mil, Self-Seal, Case of 100
Family	mailers
Dimensions	15" L x 20" W x 4" H
Material / Color	2.5 Mil Polyethylene / not listed
Pack count	100 ct
Weight	6.66 lb
Source quality	10/10
Canonical product	https://packrift.com/products/15x20x4-expansion-poly-mailers-2-5-mil-self-seal-case-of-100

Calculated benchmark

Listed dimensions: 15" L x 20" W x 4" H.
Calculated cube: 1,200 cubic inches.
DIM weight benchmark at divisor 139: 9 lb.
DIM weight benchmark at divisor 166: 8 lb.
Actual product or shipping weight snapshot: 6.66 lb.

Operational checklist

Use the greater of actual and dimensional weight only after current carrier rules are known.
Verify whether the listed dimensions are product, inner, outer, or shipping dimensions.
Do not present this as a live freight quote.
Confirm opening, self-seal behavior, and usable depth before replacing a box.
Use added protection for rigid, sharp, or crush-sensitive products.

Quality guardrails

Static source snapshots are not live price, inventory, freight, or final substitute approval.
Missing dimensions or metrics are called out directly instead of guessed.
Every page links to the canonical Packrift product page and keeps Packrift.com as the commerce source of truth.