Getting accurate measurements is the foundation of perfect custom framing. Whether you're framing artwork, photos, or memorabilia, following these simple steps will ensure your frame fits exactly as intended.
Understanding Frame Measurements
Before you start measuring, it's important to understand the two key measurements in framing:
Image Size (or Glass Size): This is the size of the artwork or photo you want to frame. It's also the size of the glass that will protect your piece.
Frame Size: This is the overall outer dimensions of the frame itself. The frame size will always be larger than your image size to accommodate the frame molding.
How to Measure Your Artwork
Step 1: Use the Right Tools
For accurate measurements, you'll need:
- A rigid ruler or measuring tape (metal rulers work best)
- A flat, level surface
- Good lighting
Step 2: Measure Width and Height
- Place your artwork on a flat surface
- Measure the width from left edge to right edge
- Measure the height from top edge to bottom edge
- Always measure in inches and to the nearest 1/8 inch
Pro tip: Measure twice to confirm accuracy. Even a small error can result in a frame that doesn't fit properly.
Step 3: Record Your Measurements
Write down your measurements as Width × Height. For example, if your photo measures 8 inches wide and 10 inches tall, record it as 8" × 10".
Measuring for Mat Board
If you're planning to add a mat board to your frame, you'll need to account for the mat opening:
- Measure your artwork as described above
- The mat opening should be slightly smaller than your artwork (typically 1/4" smaller on each side)
- This allows the mat to overlap your artwork edges and hold it securely
For example, for an 8" × 10" photo: Mat opening: 7.5" × 9.5" — This provides a 1/4" overlap on all sides.
Common Measurement Mistakes to Avoid
Mistake #1: Measuring the Frame Instead of the Artwork
If you're replacing an existing frame, measure the artwork itself, not the old frame. Frames can vary in molding width and depth.
Mistake #2: Rounding Measurements
Always use precise measurements. Rounding 8.25" to 8" might seem minor, but it can result in gaps or an artwork that doesn't fit.
Mistake #3: Mixing Up Width and Height
By convention, width is always listed first. An 8" × 10" frame is 8 inches wide and 10 inches tall (portrait orientation).
Mistake #4: Not Accounting for Thickness
For three-dimensional objects like jerseys or memorabilia, measure the depth as well. You'll need a shadow box frame with adequate depth.
Tips for Irregular Sizes
Non-Rectangular Artwork
For oval, circular, or irregular shapes:
- Measure the widest point horizontally
- Measure the tallest point vertically
- Use these measurements to determine the frame size needed
Warped or Bent Items
If your artwork is slightly warped:
- Gently flatten it on a hard surface
- Measure as if it were flat
- Note the warping when ordering your frame
- Consider professional mounting to flatten the piece
Oversized Artwork
For large pieces over 24" × 36":
- Use a long measuring tape or ruler
- Have someone help hold the artwork flat
- Measure from a corner reference point
- Double-check all measurements
Measuring for Standard vs. Custom Sizes
Before ordering a custom frame, check our frame size chart to see if your artwork matches a standard size. Standard sizes are often more economical:
Common Standard Sizes: 5" × 7", 8" × 10", 11" × 14", 16" × 20", 18" × 24"
If your artwork is within 1/4" of a standard size, consider trimming it (if possible) to fit a standard frame.
Final Checklist
Before placing your order:
- ✓ Measure width and height to the nearest 1/8"
- ✓ Write measurements as Width × Height
- ✓ Measure the artwork, not an old frame
- ✓ Account for mat board overlap if using mats
- ✓ Check if a standard size works for your piece
- ✓ Note any special considerations (thickness, warping, irregular shape)
Accurate measurements ensure your custom frame will showcase your artwork perfectly. If you're ever unsure, our customer service team is happy to help guide you through the measurement process.
Ready to start designing? Visit our frame designer to create your perfect custom frame.

