Photo Frame Sizes: 4×6 to 11×14, Metric Labels and Mounts

At a glance

In Taiwan, a “10-inch” photo frame commonly means a frame designed for an 8×10-inch photograph, measuring 20.32 × 25.4 cm. That is the supported print size; it does not necessarily describe the visible opening or the outside dimensions of the frame.

If a product listing says only “10-inch,” confirm the other dimension and the manufacturer’s actual supported print size. The shorthand alone is not enough to establish fit.

This guide compares common photo frame sizes, explains metric labels used by brands such as IKEA and MUJI, and shows how to choose a larger frame when adding a mount.

Key points:

• Taiwan’s “10-inch” frame commonly accepts an 8×10-inch print.
• Labels such as “six-inch,” “seven-inch,” and “eight-inch” are Taiwanese shorthand in this context, not universal frame-size names.
• A photo-size label generally identifies the supported print, rather than the visible opening or outside frame.
• Common formats include 4×6, 5×7, 6×8, 8×10, A4, and 11×14.
• Adding a mount requires room around the photograph. For example, an 8×10 frame with a suitable mount is a common choice for a 4×6 print.

How big is Taiwan’s “10-inch” photo frame?

A frame described as “10-inch” in Taiwan commonly accepts an 8×10-inch photograph. The photograph measures 20.32 × 25.4 cm, usually rounded to 20.3 × 25.4 cm.

The outside frame will be larger because it includes the surrounding frame border. The visible opening may be slightly smaller than the photograph because a frame lip or mount overlaps its edges.

The term “10-inch” gives only one dimension. Products can have different proportions, so look for an explicit supported print size such as 8×10 inches or 20.32 × 25.4 cm. Also check whether any other dimensions in the listing refer to the viewing opening or the outside frame.

A common purchasing mistake is to match a photograph’s dimensions to the frame’s outside dimensions. A frame whose outside measures 4×6 inches will generally have less room inside, so those measurements do not establish that it can accept a 4×6 print.

Keep these three measurements separate:

flowchart TD
    A["Full photograph size"]
    B["Mount window overlaps edges"]
    C["Outer frame includes border"]
    A --> B --> C

1. Common photo frame sizes

The dimensions below describe the photographs or documents. They are not outside-frame measurements or guaranteed viewing-opening dimensions.

In these Taiwanese shorthand names, the number refers to the photograph’s longer side: “six-inch” commonly means 4×6, “seven-inch” means 5×7, and “10-inch” means 8×10. When shopping internationally, use both dimensions and the unit.

A 6×8-inch print and A5 paper have nearly the same area, but different proportions. Similar area does not make their frames interchangeable.

2. How to interpret metric labels from IKEA and MUJI

Brands such as IKEA and MUJI use centimeter-based frame labels. These are useful for comparison, but a nearby metric size is not automatically compatible with an inch-based print.

Check whether the product’s dimensions describe the supported print, a supplied mount opening, or the outside frame.

For example, a 5×7-inch print is 3 mm narrower and 2.2 mm shorter than a 13×18 cm print. A compatible frame may secure it with its backing, retaining system, or a suitable mount, but do not assume every 13×18 frame will accommodate it properly.

Likewise, a 10×15 cm label does not guarantee room for an exact 4×6-inch print. Small differences matter when a print must fit inside a fixed recess.

3. Choose a larger frame when adding a mount

A mount—also called a mat or passe-partout—is the board surrounding the photograph. It creates a border between the image and the frame and can give the display a more finished appearance.

Choose the frame to fit the mount’s outside dimensions, then choose a mount window appropriate for the photograph.

For example, a frame designed to accept only a 4×6-inch print generally has no room for a surrounding mount border. A common alternative is an 8×10-inch frame with a mount intended for a 4×6 photograph.

The mount window is usually slightly smaller than the photograph. It overlaps the print’s edges to help hold the image behind the board. A mount advertised “for a 4×6 photo” therefore does not necessarily have an opening measuring exactly 4×6 inches.

Common combinations include:

These are starting points. Before buying, confirm that the frame accepts the mount’s outside dimensions, that its depth accommodates the intended contents, and that the window’s overlap will not cover an important part of the photograph.

4. Further reading: photo and paper sizes

• 4×6 photographs: How big is a 4×6 photo? A guide to the 10.16 × 15.24 cm print size
• 5×7 photographs: How big is a 5×7 photo? 12.7 × 17.78 cm and Taiwan’s “seven-inch” terminology
• A5 paper: What size is A5? 14.8 × 21 cm
• Instant photographs: What size are instant photos?

Frequently asked questions

How big is a “10-inch” photo frame in Taiwan?

In Taiwan, a frame sold as “10-inch” commonly accepts an 8×10-inch print, measuring 20.32 × 25.4 cm. This describes the supported photograph, not necessarily the visible opening or outside frame. Confirm both dimensions and the manufacturer’s supported print size before buying.

How many centimeters is a Taiwanese “six-inch” photo frame?

In Taiwan, “six-inch” commonly refers to a frame for a 4×6-inch print, measuring 10.16 × 15.24 cm, or approximately 10.2 × 15.2 cm. A frame labeled 10 × 15 cm does not automatically accept that exact print size; check the manufacturer’s specifications.

Do photo frame sizes refer to the outside dimensions or the photograph?

Photo-size labels generally describe the print a frame is designed to accept. The visible opening may be smaller because the frame lip or mount overlaps the photograph. Outside dimensions include the frame border and must be checked separately.

Can an A4 frame hold an 8×10-inch photograph?

An 8×10-inch print is smaller than A4: 20.32 × 25.4 cm compared with 21 × 29.7 cm. The difference is 0.68 cm in width and 4.3 cm in height. An A4 frame may accommodate it with a suitable mount and backing, but confirm the actual frame specifications and how the photograph will be secured.

Is a Taiwanese “eight-inch” frame the same size as A5?

No. In Taiwan, “eight-inch” commonly refers to a frame for a 6×8-inch print, measuring 15.24 × 20.32 cm. A5 measures 14.8 × 21 cm. Their areas differ by about 0.36%, but their aspect ratios differ, so the prints and frames are not interchangeable.

Sources for the specification checks

Dimensions and formulas checked on 30 October 2026. Prices and service examples retain the observation dates stated in the article.

• FUJIFILM: Japanese photo print dimensions
• IKEA: supported picture size, mount opening and outside measurements