A 12x18" frame offers a bold, modern size for medium-format prints, certificates, posters, and photo enlargements. Whether you're displaying a full 12x18 print or using a mat to elevate 8.5x11 documents or art, this guide breaks down all the ways to beautifully frame 12x18 artwork — plus the larger formats that support it.
Option 1: True 12x18 Frame (No Mat)
Displays: Full 12x18" artwork
Visible Display Area: Approx. 11.5 x 17.5" (due to rabbet/lip overlap)
Frame Size: 12x18"
Go borderless and bold with a true 12x18 display. This size is commonly used for posters, art prints, diploma enlargements, and photographic work. Without the mat, you get a clean, edge-to-edge presentation.
Option 2: 14x21 Frame with 12x18 Mat Opening
Displays: 12x18" artwork
Mat Opening: 11.5 x 17.5"
Frame Size: 14x21"
This slightly larger frame adds extra visual space around your 12x18 print — perfect for an editorial layout or wall groupings with mixed sizes.
Option 3: 16x22 Frame with 12x18 Mat Opening
Displays: 12x18" artwork
Mat Opening: 11.5 x 17.5"
Frame Size: 16x22"
With a wider border and larger overall dimensions, this frame helps your 12x18 artwork feel like a statement piece. Great for photography, typography prints, and bold colorwork.
Option 4: 16x24 Frame with 12x18 Mat Opening
Displays: 12x18" artwork
Mat Opening: 11.5 x 17.5"
Frame Size: 16x24"
This format creates a generous mat border that evokes high-end gallery presentation. It’s one of the most visually impactful ways to frame a 12x18 print and ideal for large walls or standalone pieces.
Option 5: 18x24 Frame with 12x18 Mat Opening
Displays: 12x18" artwork
Mat Opening: 11.5 x 17.5"
Frame Size: 18x24"
The most popular oversize upgrade. This configuration offers a dramatic and balanced look for medium-format prints. Commonly used for commercial art, student portfolios, or fine art photography.
12x18 Frame Specs at a Glance
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Outer Dimensions: 14.5" x 20.5" x 1"
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Mat Option Included:
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8 x 10.5" opening for 8.5x11 prints
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Visible Area (No Mat): 11.5 x 17.5"
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Glazing: Tempered Glass (shatter-resistant)
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Depth Capacity: Up to 0.15" with backing; up to 0.80" without
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Includes: 8.5x11 mat, display insert (no text), black backboard, hanging hardware (landscape or portrait)
