Our prices include most shipping charges. **NEW** West of Mississippi 10% shipping charges waived on orders over $200(except +frt items) (Details)
We stock three thicknesses of rigid mailers:


Stayflats Utility™ are our latest rigid mailers. Made from .015" thick tan chipboard. Material is recycled paperboard with 97%
post-consumer content. 100% recyclable. Peel & seal tape closure; tear strip opener.

Stayflats® Lites are made from 18 point, 
100% recycled paperboard. They come with a peel & seal tape closure; tear strip opener.  Use these mailers when you have bend sensitive documents, but need to save on shipping costs. Great for direct mail, calenders, photographs, awards, computer software and much more. If extra rigidity is desired use appropriate sized filler pads.

Stayflats® RIGID MAILERS - the original mailer are the correct choice for shipping flat items when rigidity is the highest priority. These mailers are available in white clay coat or brown kraft. The brown kraft is heavy duty .037" thick board; the white clay coated newsback is .028" thick. The variety of sizes offered (from 5 x 7 through 21 x 27) insures that whatever you are shipping will have a mailer close in size.

We offer Corrugated Pads as well as Chipboard Pads for these mailers. Pads are used for additional stiffening, corner and edge protection and buffering between items being shipped.

Scroll down for product information and pricing or click above links.

Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
5-3/4 x 8-9/16" (ID)
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F69CHP if additional rigidity is needed.
5-3/4 x 8-9/16" (ID)
Made from .015" thick chipboard.
Base SKU: mutil69

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Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F711CHIP if additional rigidity is needed.
7 x 10-9/16" (ID)
Made from .015" thick chipboard
Base SKU: mutil711

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Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
8-1/4 x 10-5/8" (ID)
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F811CHP if additional rigidity is needed.
8-1/4 x 10-5/8" (ID)
Made from .015" thick chipboard.
Base SKU: mutil811

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Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
9-1/4 x 13" (ID)
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F913CHP if additional rigidity is needed.
9-1/4 x 13" (ID)
Made from .015" thick chipboard.
Base SKU: mutil913

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Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
10-1/2 x 15" (ID)
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F1015 if additional rigidity is needed.
10-1/2 x 15" (ID)
Made from .015" thick chipboard.
Base SKU: mutil1015

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Stayflat Utility Mailers - Brown Kraft
Stayflat Utility Mailers - Brown Kraft
Description:
12-1/8 x 17-1/2" (ID)
Made from .015" thick chipboard.
Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F1218 if additional rigidity is needed.
12-1/8 x 17-1/2" (ID)
Made from .015" thick chipboard.
Base SKU: mutil1218

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018" />
Description:
7-7/8 x 5-5/8" (ID)
Made from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F86 if additional rigidity is needed.

Also mails one CD Jewel Case or 1 HD-DVD Case. Peel & seal tape closure; pull strip opener.
7-7/8 x 5-5/8" (ID)
Base SKU: msf86

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018
Description:
9-3/8 x 5-5/8" (ID)
Made from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F96 if additional rigidity is needed.
9-3/8 x 5-5/8" (ID)
Base SKU: msf96

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018
Description:
8-7/8 x 6-7/8" (ID)
Made from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use chipboard filler F97 if additional rigidity is needed.
8-7/8 x 6-7/8" (ID)
Base SKU: msf97

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Stayflats Lite Mailer .018" thick white paperboard
Stayflats Lite Mailer .018
Description:
11-3/8 X 8-1/2" (ID)
Made from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F119 if additional rigidity is needed.
11-3/8 X 8-1/2" (ID)
Base SKU: msf119

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018
Description:
12-1/16 x 9-1/2" (ID)
Made from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F129 if additional rigidity is needed.

12-1/16 x 9-1/2" (ID)
Base SKU: msf129

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018
Description:
13-1/4 x 10-3/4" (ID)
Made
from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F1311 if additional rigidity is needed.
13-1/4 x 10-3/4" (ID)
Base SKU: msf1311

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Stayflats Lite Mailers .018" thick white paperboard.
Stayflats Lite Mailers .018
Description:
14-5/8 x 11-1/2" (ID)
Made
from 18 point paperboard. White outside. Comes with peel & seal tape closure and tear strip opening. Use corrugated filler F1411 if additional rigidity is needed.
14-5/8 x 11-1/2" (ID)
Base SKU: msf1411

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Rigid Mailer .028" thick. White Clay Coat.
Rigid Mailer .028" />
Description:
5-3/4 x 7-3/4" (ID)
Mails regular postcards and photos.
Made from white clay coated newsback. Tuck tab design.

400 quantity is wholesale priced and a +FREIGHT ITEM. CALL FOR FREIGHT QUOTE.
5-3/4 x 7-3/4" (ID)
Base SKU: mrtt68w

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Rigid Mailer .028" thick. White Clay Coat.
Rigid Mailer .028
Description:
6-3/4 x 8-3/4" (ID)
Mails large postcards and photos.
Made from white clay coated newsback. Tuck tab design.

400 quantity is wholesale priced and a +FREIGHT ITEM. CALL FOR FREIGHT QUOTE.

6-3/4 x 8-3/4" (ID)
Base SKU: mrtt79w

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Rigid Mailer .028" thick. White Clay Coat
Rigid Mailer .028" />
Description:
8-7/8 x 11-1/8 " inside dimensions
Mails Standard Magazines, 8x10 Still Photos and 8x10 Mats
Made from white clay coated newsback. Tuck tab design.

400 quantity is wholesale priced and a +FRT ITEM. CALL FOR FREIGHT QUOTE.
8-7/8 x 11-1/8" (ID)
Base SKU: mrtt911w

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Rigid Mailer .018" thick White Clay Coat.
Rigid Mailer .018
Description:
9-1/2 x 11-3/4" inside dimensions
Mails large magazines

400 quantity is wholesale priced and a +FRT ITEM. CALL FOR FREIGHT QUOTE.

9-1/2 x 11-3/4" (ID)
Base SKU: mrtt912w

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Rigid Mailer .028" thick White Clay Coat.
Rigid Mailer .028
Description:
10-3/4 x 13" inside dimensions
Mails Regular Life Magazines, Small Sheet Music.

400 quantity is wholesale priced and a +FRT ITEM. CALL FOR FREIGHT QUOTE.

10-3/4 x 13" (ID)
Base SKU: mrtt1113w

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Rigid Mailer .028" thick White Clay Coat.
Rigid Mailer .028
Description:
12-7/8 x 17-5/8"  inside dimensions
Mails Early Magazines,Tabloids.

400 quantity is wholesale priced and a +FRT ITEM. CALL FOR FREIGHT QUOTE.


12-7/8 x 17-5/8" (ID)
Base SKU: mrtt1318w

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Rigid Mailer .028" thick. White Clay Coat
Rigid Mailer .028
Description:
12-1/2 x 14-1/2" inside dimensions
Mails Treasury Comics, Lobby Cards, Large Sheet Music, Large Life Magazine and 11 x 14" Mats.
Made from white clay coated newsback. Tuck tab design.

400 quantity is wholesale priced and a +FREIGHT ITEM. CALL FOR FREIGHT QUOTE.

12-1/2 x 14-1/2" (ID)
Base SKU: mrtt1215w

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