8 1/2" x 39" Long Poly Mailers - Extended Length Protection for Rolled Items
Prism Pak's 8 1/2" x 39" Long Poly Mailers deliver secure, water-resistant shipping for oversized rolled documents and materials. Built from heavy-duty 4 mil polyethylene, these extended-length mailers protect posters, blueprints, architectural plans, banners, and fabric samples from moisture, dust, and handling damage during transit.
Product Specifications
- Dimensions: 8 1/2" x 39" (inside usable space)
- Material: 4 Mil LDPE polyethylene film
- Closure: Self-seal adhesive strip
- Quantity: 100 mailers per box
- Color: Clear/translucent
Commercial Applications
The 39-inch length accommodates rolled items that standard poly mailers cannot handle. Architectural and engineering firms use these mailers for shipping blueprints, construction drawings, and CAD plots to job sites and clients. Print shops rely on them for delivering large-format posters, banners, and photographic prints without creasing or folding. Sign companies ship vinyl graphics and rolled decals safely. Interior designers and wallpaper distributors protect sample rolls during delivery. Educational suppliers ship rolled maps and classroom charts.
Key Features
- 4 Mil Heavy-Duty Construction: Thick polyethylene resists punctures and tears from handling equipment and shipping environments
- Water-Resistant Protection: Sealed poly material shields contents from rain, humidity, and warehouse condensation
- Self-Seal Closure: Peel-and-stick adhesive strip creates a secure seal without tape or equipment
- Lightweight Design: Adds minimal shipping weight compared to cardboard tubes while providing comparable protection
- Extended Length Format: 39-inch depth handles oversized rolled documents that exceed standard mailer capacities
Sizing Guidance
The 8 1/2" width comfortably accommodates rolled materials with diameters up to approximately 2.5 inches. For tightly rolled letter-size or tabloid documents, this provides ample clearance. Loosely rolled posters or thicker material rolls should be measured before ordering. The 39-inch depth handles standard blueprint lengths and large-format poster sizes.
Why Choose Prism Pak
Prism Pak stocks specialty mailer sizes for commercial shipping operations. Our wholesale pricing and case quantities support businesses that regularly ship oversized documents and rolled materials. Direct distribution from our Pennsylvania warehouse ensures fast fulfillment throughout the Eastern United States.
Poly Bags 
