Art Print Size Chart for Framing: Mat Sizes, Border Allowances, and Frame Fit

Overview

This article is designed as a repeatable framing calculator in editorial form. Instead of guessing which frame size fits an 8x10 print or whether a 16x20 frame will work with an 11x14 image, you can use a small set of rules to decide the right combination every time.

The framing decision usually comes down to three dimensions:

• Print size: the full sheet size of the printed piece
• Image area: the visible artwork, which may be smaller than the sheet if the print includes borders
• Frame size: the size of the artwork, mat board, or backing the frame is built to hold

Many framing problems happen because those three terms are treated as interchangeable. They are not. A print can be 12x16 overall, contain an 11x15 image, sit behind a mat with a slightly smaller opening, and still need a frame sized to the outer edge of the mat rather than to the print itself.

For artists, galleries, and buyers comparing archival art prints or high quality reprints, the practical takeaway is simple: decide first whether you want a full-bleed print, a bordered print, or a matted presentation. That single choice determines most of the sizing logic that follows.

As a starting point, here is a useful chart of common print-to-frame relationships.

Quick art print size chart for framing

This chart is not a rigid standard. It is a practical planning tool. Some sellers prefer narrow mats for a modern presentation, while others use wider borders for gallery quality prints. The right choice depends on style, budget, and the visual weight of the artwork.

If you need a broader reference for dimensions and aspect ratios before framing decisions begin, see Standard Poster Sizes Guide: Dimensions, Ratios, and Best Uses.

How to estimate

Use this section as your repeatable method. It works whether you are ordering a single reproduction art print or setting up poster printing for artists across multiple SKUs.

Step 1: Identify the artwork ratio

Before selecting a frame, confirm the shape of the artwork. Common ratios include:

• 4:5 ratio such as 8x10, 11x14, 16x20
• 2:3 ratio such as 8x12, 12x18, 24x36
• 3:4 ratio such as 9x12, 18x24
• Square such as 12x12 or 20x20

If the ratio of the print and the frame opening do not match, you will usually need one of three fixes: crop the image, add borders, or use a custom mat.

Step 2: Decide whether the print will be floated, matted, or framed full bleed

This is where many framing decisions become easier.

• Full-bleed framing: the print fills the frame opening edge to edge. Best when the print size already matches a standard frame size.
• Matted framing: the print sits behind a mat with an opening smaller than the sheet. Best for fine art presentation and protecting the visual edge of the print.
• Float mounting: the full paper edge remains visible inside the frame. Best when deckled edges, signature areas, or border notes are part of the presentation.

For archival art prints and limited edition art print production, matting or float mounting is often preferred because it preserves the edge detail and gives the work more separation from the glazing.

Step 3: Choose your border allowance

A border allowance is the unused paper around the image. It can serve aesthetic and practical purposes:

• Provides handling space during packing and framing
• Creates room for signatures, edition numbers, or chop marks
• Allows the artwork to sit under a mat without covering important image content

A practical rule of thumb is to make borders intentional rather than accidental. If you want a border, keep it even on all sides unless you are deliberately using a deeper bottom border for a traditional fine art look.

Common bordered print approaches include:

• Small prints: modest borders that keep the paper from feeling oversized relative to the image
• Medium prints: enough border to support a mat opening without clipping key details
• Large prints: either a clean full-bleed look or a clearly generous border for premium presentation

Step 4: Calculate mat opening size

The mat opening is usually slightly smaller than the visible image area or the intended reveal area. This allows the print to sit securely behind the mat. In practice, you want the opening small enough to hold the print but not so tight that it covers important details.

For example:

• An 8x10 print placed in an 11x14 mat will usually have an opening slightly smaller than 8x10
• An 11x14 print placed in a 16x20 mat will usually have an opening slightly smaller than 11x14

The exact overlap can vary by framer, but the planning principle stays the same: the mat opening is not identical to the nominal print size.

Step 5: Match the frame to the outside of the matted piece

This is the part that prevents most ordering mistakes. If your print is matted, the frame size must match the outer dimensions of the mat, not the print size itself.

Examples:

• 8x10 print + 11x14 mat = 11x14 frame
• 11x14 print + 16x20 mat = 16x20 frame
• 12x18 print + 16x24 mat = 16x24 frame

If there is no mat, the frame size generally matches the print size, assuming the print is intended to fit directly into the frame.

Inputs and assumptions

To make reliable framing decisions, define your inputs before placing a print order. This is especially important for custom size poster prints, gallery install planning, and art print fulfillment workflows where consistency matters across many orders.

1. Final display style

Ask what the finished piece should look like on the wall.

• Minimal modern look: often full bleed with a simple frame
• Classic gallery look: usually a wider mat and visible spacing around the image
• Collector edition look: often a bordered print with room for signature and a mat or float mount

The same image may be printed at different sheet sizes depending on the display style.

2. Available frame sizes

If you want to stay with standard frame sizes, work backward from common ready-made options. This often reduces cost and simplifies replacement later.

Common standard frame sizes include 8x10, 11x14, 12x16, 16x20, 18x24, 24x36, and 30x40. If your artwork ratio does not naturally fit one of these, decide whether to crop, add border, or use custom framing.

For teams ordering at scale, standardization can simplify inventory and reduce decision fatigue. A small catalog of approved print sizes often performs better operationally than offering every possible variation.

3. Mat width preference

Mat width changes how large the finished piece feels. Narrow mats tend to look contemporary. Wider mats often feel more formal and can help small images hold their presence on a wall.

A useful way to think about it is proportional balance rather than fixed numbers. A very narrow mat around a small image can feel cramped. A very wide mat around a large poster can feel excessive unless you are aiming for a dramatic gallery presentation.

4. Border needs on the print itself

If the artwork is being printed by a fine art print shop or giclee printing service, clarify whether the ordered size refers to the image area or the full paper size. Different shops phrase this differently, and that difference affects frame fit.

Questions worth asking before checkout:

• Is the listed print size the full sheet size?
• Does the image print edge to edge?
• Can borders be added without resizing the image unexpectedly?
• Will signatures or edition numbers sit inside the printed area or in the border?

For broader paper-choice considerations that affect presentation, see Selecting Fine Art Paper Online: What Galleries and Print Shops Need to Know and Practical Checklist for Choosing Poster Printing Paper for Events and Retail.

5. Mounting and glazing clearance

Some prints, especially thicker fine art papers, need enough depth in the frame package to accommodate the print, mat, backing, and glazing. This becomes more relevant with cotton rag papers, deckled edges, double mats, or float-mounted pieces.

If you are selling museum quality art prints, it is wise to confirm frame depth and mounting method before standardizing a presentation format.

6. Shipping and handling requirements

Large framed work is more complex to ship than loose prints in art print shipping tubes. That affects not only cost but also the safest finished size to offer.

For artists and small businesses, a practical product strategy is often:

• Offer loose prints in standard sizes for easy customer framing
• Offer select ready-to-frame sizes with mat compatibility clearly stated
• Reserve oversized framed options for local delivery, events, or special orders

Storage and handling also matter after delivery. See Storage and Handling Best Practices for Bulk Paper and Finished Prints if you are managing inventory or print runs.

Worked examples

These examples show how to apply the sizing logic in real scenarios.

Example 1: Selling an 8x10 art print in a giftable format

You want an easy, ready-to-frame option that buyers can source locally.

• Artwork ratio: 4:5
• Print size: 8x10
• Presentation goal: classic matted look
• Best pairing: 11x14 mat and 11x14 frame

Why it works: 11x14 is a widely recognized frame size, and the mat gives the small print more visual presence. This is a strong choice for artists selling high quality reprints online because it simplifies the buyer's framing path.

Example 2: Preparing a 12x18 photo to poster print for wall display

You have a landscape image and want a standard ratio that scales well.

• Artwork ratio: 2:3
• Print size: 12x18
• Presentation goal: medium wall art with or without a mat
• Best pairing: direct 12x18 frame for a clean look, or 16x24 mat and frame for a more finished presentation

Why it works: 12x18 is a practical midpoint for custom wall art prints. The direct frame option controls cost. The 16x24 option creates stronger presence and a more gallery-like feel.

Example 3: Offering 11x14 limited edition prints

You need room for a signature and edition number below the image.

• Artwork ratio: often 11x14 sheet with smaller image area
• Print size: 11x14 sheet
• Presentation goal: visible lower border and premium framing
• Best pairing: 16x20 mat and frame, or float mount in a larger frame if the border is part of the artwork

Why it works: a larger frame package supports the editioned format and keeps inscriptions from being lost under the mat. This is common for archival art prints meant for collectors.

Example 4: Standardizing sizes for poster printing for artists

You manage a small catalog and want to keep production efficient.

• Approved print sizes: 8x10, 11x14, 12x18, 16x20, 18x24, 24x36
• Approved frame pairings: 11x14, 16x20, 16x24, 20x24 or 22x28, 24x30, 24x36
• Policy: each listing states whether the size is print-only, sheet size with border, or finished size for framing

Why it works: a standardized matrix reduces mistakes in custom poster printing and support inquiries after purchase. It also helps with batching, packaging, and art print fulfillment.

Example 5: Framing a large 24x36 exhibition piece

You want impact on the wall but also need a realistic display method.

• Artwork ratio: 2:3
• Print size: 24x36
• Presentation goal: strong visual impact with manageable cost
• Best pairing: direct 24x36 frame in many cases; matting only if the budget and wall space support a much larger finished size

Why it works: once a print reaches this scale, the added size and cost of matting can become substantial. Many large wall art prints are framed without mats for a cleaner and more economical result.

When to recalculate

Framing choices are worth revisiting whenever one of the underlying inputs changes. This is where the guide becomes genuinely reusable rather than a one-time reference.

Recalculate your print, mat, and frame plan when:

• You change the artwork ratio. A move from 4:5 to 2:3 affects every downstream framing option.
• You switch paper size conventions. A shop may define size by image area or by full sheet size.
• You add or remove borders. Even a modest border can change whether a standard mat still works.
• You move from print-only to framed sales. Shipping, protection, and frame depth become larger factors.
• You change vendors. Different production workflows can alter trim tolerance, border defaults, and packaging constraints.
• You update your product pricing. Wider mats and larger frames can change the economics of a product line.
• You redesign your collection. A unified display system often benefits from standardized outer frame sizes even when image sizes vary.

Before placing a final order, use this short checklist:

1. Confirm the exact print size and ratio.
2. Confirm whether the size refers to image area or full paper size.
3. Decide if the print will be full bleed, bordered, matted, or floated.
4. Choose a standard frame size whenever practical.
5. Match the frame to the outside dimensions of the mat, not the opening.
6. Leave enough border or overlap so the artwork is not clipped.
7. For larger pieces, confirm shipping and handling requirements before committing to a finished size.

If your project also involves paper finish decisions, related guidance can help narrow the presentation style. See Coated vs Uncoated Paper: How to Match Finish to Brand and Application, Finishing Techniques That Elevate Prints: Lamination, UV Coating, and Matte Options, and Cost-Effective Proofing: How Small Businesses Can Approve Colors and Paper Choices Without Wasting Stock.

The most reliable framing process is not complicated. Pick the intended display style, identify the true print dimensions, work backward from a standard frame when possible, and treat borders and mats as planned design elements rather than afterthoughts. That approach helps artists, buyers, and operations teams avoid wasted prints, mismatched frames, and preventable returns.