Fits most of your comic related magazine sizes. There are 3 sizes of Mylars for magazines. The thickness can take up a lot of the usable width, so be sure to ask if you have any questions about which size to order.
Frames are based on Mylar-D Bag sizes. Magazines come in a variety of sizes and thicknesses. Customizing the thickness is no problem, but has to be done in the note section. Examples would be 1/8", 3/16", or 1/4". A 36 page comic is about 1/16" thick; 80 pages is about 1/8" thick; and 126 pages is about 3/16" thick.
Choosing the right size can be difficult. In general you need to add at least 1/2" (one-half of an inch) to the magazine width to choose a bag size.
A new Heavy Metal magazine measures about 3/16" thick (126 pages), and a little over 8" wide by 10 7/8" tall. This fits just fine in a 8 3/4" x 11 1/2" Mylar without having to fold the bag over. You could fold it over a little on the top, but the frame hides about 1/8" of the top, and you have a little extra space around the edges anyway so it makes it look uniform.
The most that will fit in a 8 3/4" x 11 1/2" Mylar bag is about 8 1/8" to 8 1/4" for a 3/16" thick mag, and 8 5/16" wide for a 1/8" thick magazine. 11 1/8" to 11 1/4" will fit height-wise. I can also adjust the frame height depending on the magazine height.
I do recommend using the Mylar bags, but if there is something that doesn't fit in a bag, or you simply don't want to use a bag, you can always order your size and specify that you want a custom fit frame for your magazine without using the bag and just give me the measurements and thickness of the magazine. Please order the approximate size frame though.
I am pleased to offer the highest quality Mylar-D bags, the same type used by the National Archives and the Library of Congress. Not commonly offered, they preserve for 100 years instead of the usual 3-5. Learn more about these bags!