Understanding Flat Size, Trim Size, and Other Size Terms

The world of printing is filled with specific terms that can often be confusing, especially for those new to the industry. In this post, we’ll clarify some common size-related terms you might encounter when discussing projects or reviewing quotes.

Flat Size

Flat Size refers to the dimensions of a document after it has been printed and trimmed but before any further operations like folding. Essentially, it is the size of the paper in its flat state. For documents that are not folded, the Flat Size is also the Finished Size.

Trim Size

Trim Size is the size of a document after it has been printed and cut to its final width and height from a larger sheet. This process removes any excess paper around the edges. Trim Size is often used interchangeably with Flat Size and Finished Size for unfolded documents.

Finished Size

Finished Size denotes the final dimensions of a printed document. For unfolded documents, it is the same as the Flat Size or Trim Size. For folded documents, the Finished Size is the same as the Folded Size.

Folded Size

Folded Size is the size of a document after it has been folded. It is crucial for determining the layout and appearance of the final piece, especially for brochures, booklets, and other folded materials.

Page Size

Page Size refers to the dimensions of the pages in a book or bound document. Common page sizes include 5.5″ x 8.5″, 6″ x 9″, and 8.5″ x 11″. Understanding Page Size helps in planning the layout and design of books and manuals.

Cut Size

Cut Size refers to pre-cut paper sizes, usually packaged for convenience. Popular Cut Sizes in the U.S. include 8.5″ x 11″ (letter size), 8.5″ x 14″ (legal size), and 11″ x 17″ (tabloid size). These sizes are commonly used in various printing projects.

Press Sheet Size

Press Sheet Size is the paper size that runs through a sheet-fed printing press. Digital presses handle smaller sizes, such as up to 13″ x 19″ or 14″ x 26″, while offset presses can accommodate larger sizes like 23″ x 29″ or 28″ x 40″.

Parent Sheet Size

Parent Sheet Size refers to larger sheets of paper used to print multiple images that will later be trimmed down. For example, a 28″ x 40″ Parent sheet might be used to print sixteen 6″ x 9″ images, which are then cut to size. This method improves efficiency in the printing process.

Bleed Size

Bleed Size includes extra space beyond the Trim Size to ensure there are no unprinted edges after trimming. Typically, Bleed Size adds an extra 0.125 inches (1/8 inch) or 3 mm on all sides. For instance, an 8.5″ x 11″ document with bleed would measure 8.75″ x 11.25″.

Why Understanding Print Sizes Matters

Understanding these terms clearly will help your projects meet expectations. Whether you’re printing business cards, brochures, or books, knowing the right terms will help you avoid misunderstandings.

 

For more information and expert guidance, contact our Innvoke team.