Flat Rigid Cardboard Mailers

We stock four styles of rigid mailers:

All styles are Recyclable and made from 100% recycled paperboard.

Stayflats Utility™ Made from .015" thick tan chipboard. Peel & seal tape closure; tear strip opener. Corresponding filler pads.

Stayflats® Lites are made from 18 pt., paperboard. They come with a peel & seal tape closure & a tear strip opener. Use these mailers when you have bend- sensitive documents but need to save on shipping costs. If extra rigidity is desired use appropriate-sized filler pads. Click here for corresponding filler pads.

Stayflats® RIGID MAILERS - the original mailers 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 .036" thick board; the white clay coated newsback is .028" thick. The variety of sizes offered (from 5 x 7 through 21 x 27) ensures that whatever you are shipping will have a mailer close in size. Click here for corresponding filler pads.

Stayflats Plus® RIGID MAILERS - These mailers are available in white clay-coat newsback .028" thick. Mailers come with a peel & seal tape closure and a tear strip for easy opening. Corresponding Filler Pads are linked in each mailer description.

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. Click on above Filler Pads links to view.

Stayflat Utility Mailers.
7 x 10-9/16"" inside.
Peel & seal tape closure; tear strip opening.
MAILS ONE COMIC.
**CLOSEOUT 50% OFF**
Base SKU:mutil711

Stayflats® Lite Mailer.
Mails 1 CD Case.
.018" thick. White Paperboard.
7-7/8 x 5-5/8" inside dimensions.
Base SKU:msf86

Stayflats Lite Mailers
.018" thick white paperboard.
11-3/8 X 8-1/2" (ID).
Peel & Seal; Tear-strip opener.
Base SKU:msf119

Stayflats Lite Mailers
.018" thick white paperboard.
12-1/16 x 9-1/2" (ID).
Peel & Seal; Tear-strip opener.
Base SKU:msf129

Stayflats Lite Mailers
.018" thick white paperboard.
14-5/8 x 11-1/2" (ID).
Peel & Seal; Tear-strip opener.
Base SKU:msf1411

Rigid Mailer .028" thick. White Clay Coat Newsback.
5-7/8 x 7-5/8" inside.
Mails regular postcards and photos.
Base SKU:mrtt68w

Rigid Mailer .028" thick. White Clay Coat Newsback.
6-7/8 x 8-5/8" inside.
Mails large postcards and photos.
Base SKU:mrtt79w

Rigid Mailer .028" thick. White Clay Coat Newsback.
8-3/4 x 11" inside.
Mails Standard Magazines, 8 x 10" Still Photos & 8 x 10" Mats.
Base SKU:mrtt911w

Rigid Mailer .028" thick White Clay Coat Newsback.
9-5/8 x 11-7/8" inside.
Mails Large Magazines and up to 4 Comics.
Base SKU:mrtt912w

Rigid Mailer .028" thick White Clay Coat Newsback.
10-7/8 x 13" inside.
Mails regular life magazine,
small sheet music, up to 8 comics.
Base SKU:mrtt1113w

Rigid Mailer .028" thick. White Clay Coat Newsback.
12-5/8 x 14-1/2" inside.
Mails Treasury Comics, Lobby Cards, Large Sheet Music & more.
Base SKU:mrtt1215w

Rigid Mailer .028" thick White Clay Coat Newsback.
12-3/4 x 17-5/8" inside.
Mails Early Magazines, Tabloids, Comic Art.
Base SKU:mrtt1318w

Rigid Mailer .028" thick White Clay Coat Newsback.
16-5/8 x 20-1/2" inside.
Mails 16 x 20 Stills, Matted 11 x 14" prints, Large Tabloids, Comic Art.
Base SKU:mrtt1721w

Rigid Mailer .028" thick White Clay Coat Newback.
17-5/8 x 23-1/2" inside.
Mails Large Tabloids, Newspapers,Window Card Posters.
Base SKU:mrtt1824w

Rigid Mailer .028" thick White Clay Coat Newsback.
19-5/8 x 26" inside.
Mails 18 x 24" prints, Matted 16 x 20" prints.
Base SKU:mrtt2127w

Rigid Mailer .037" thick Natuarl Kraft Chipboard.
5-7/8 x 7-5/8" inside.
Mails regular postcards and photos.
**SALE 20 OFF**
Base SKU:mrtt68k

Rigid Mailer .037" thick Natural Kraft Chipboard.
8-3/4 x 11" inside.
Mails Standard Magazines, 8 x 10 Still Photos & 8 x 10 Mats.
Base SKU:mrtt911k

Rigid Mailer .037" thick Natural Kraft Chipboard.
9-5/8 x 11-7/8".
Mails Large Magazines/ 4 Comics.

Base SKU:mrtt912k

Rigid Mailer .037" thick Natural Kraft Chipboard.
10-7/8 x 13" inside.
Mails regular life magazine, small sheet music, 8 comics with 2 fillers - FCOMLG.
Base SKU:mrtt1113k

Rigid Mailer .037" thick. Natural Kraft Chipboard.
12-5/8 x 14-1/2" inside.
Mails Treasury Comics, Lobby Cards, Large Sheet Music & more.
Base SKU:mrtt1215k

Rigid Mailer .037" thick Natural Kraft Chipboard.
12-3/4 x 17-5/8" inside.
Mails Early Magazines, Tabloids, Comic Art.
Base SKU:mrtt1318k

Rigid Mailer .037" thick Natural Kraft Chipboard.
16-5/8 x 20-1/2" inside.
Mails 16 x 20 Stills, Matted 11 x 14" prints, Large Tabloids, Comic Art.
Base SKU:mrtt1721k

Rigid Mailer .037" thick Natural Kraft Chipboard.
17-5/8 x 23-1/2" inside.
Mails Large Tabloids, Newspapers and Window Card Posters.
Base SKU:mrtt1824k

Rigid Mailer .037" thick Natural Kraft Chipboard.19-5/8 x 26" inside.
Mails 18 x 24" prints, Matted 16 x 20" prints.
Base SKU:mrtt2127k

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