20x31 Deep Blue / Midnight Blue Custom Mat for Picture Frame - Precise

In this review of the 20x31 Deep Blue / Midnight Blue Custom Mat from ArtToFrames, the bottom line is simple: this is a practical, well-cut mat for anyone mounting a 16x27 photo into a 20x31 frame. The reviewer found the construction and measurements reliable, which makes it a straightforward choice for photographers, artists, and hobby framers who need an accurate opening without paying for a complete custom framing service. The mat is described as standard 4 ply material and built from lignin-free, pH-neutral stock that presents a clean, archival-looking border.

Key Features

• Standard 4 ply material: Provides a sturdy, professional feel that sits flat inside a 20x31 frame and resists warping over time.
• Lignin-free and pH-neutral: Protects prints and photos by minimizing acid damage and ensuring archival-safe contact with the artwork.
• Fits a 16x27 photo: The mat is sized to present a 16x27 image, with an actual opening cut to 15.75x26.75 for a proper overlap that secures the photo.
• Accurate cut quality: Cuts are described by customers as precise, producing consistent measurement accuracy and a clean window edge.
• Color accuracy: The Deep Blue / Midnight Blue tone is reported to match expectations, offering a classic, subdued border that complements many images.
• Custom cuts available: If the opening or design needs to be altered, custom sizes can be requested to match nonstandard artwork.

Who It's For

This mat is ideal for photographers, printmakers, and DIY framers who already own or plan to buy a 20x31 frame and want a reliable, archival mat to showcase a 16x27 print. The straightforward sizing and standard 4 ply construction make it a good match for studio work, gallery displays, or home decor where accuracy matters.

It is less suitable for someone who needs an ornate double mat, unconventional thicknesses, or a pre-mounted framed product; those buyers should consider a full custom framing service or multilayer mat options elsewhere. For most users needing a single, high-quality mat board, this product fills the need without extra cost.

Pros & Cons

Pros

• High-quality 4 ply construction that feels stable and durable in a frame.
• Archival, lignin-free and pH-neutral materials protect prints over time.
• Precise cut and measurement accuracy deliver a consistent, snug fit for 16x27 photos.
• Color and finish match expectations, producing a classic presentation.

Cons

• Actual opening is 15.75x26.75, slightly smaller than nominal 16x27, which is intentional but should be noted by buyers.
• Only a single-ply option is provided here; buyers seeking multi-layer or decorative mats will need to look elsewhere.

Specifications

Product name	20x31 Deep Blue / Midnight Blue Custom Mat
Fits frame	20x31 in
Photo size	16x27 in (nominal)
Actual opening	15.75x26.75 in
Material	Standard 4 ply, lignin-free, pH-neutral
Brand	ArtToFrames
Custom options	Custom opening sizes available upon request

Our Verdict

The 20x31 Deep Blue / Midnight Blue mat is a practical, well-made choice for anyone framing a 16x27 print in a 20x31 frame. Its archival construction and accurate cut quality offer real value for photographers and hobby framers who need a dependable mat without overpaying for full framing. Buyers who require specialty layering or decorative effects should consider other options, but for a single archival mat this is a solid purchase.

Frequently Asked Questions

Will this mat fit a 16x27 photo exactly?
Answer. The mat is intended for a 16x27 photo, but the actual opening is cut to 15.75x26.75 in to provide proper overlap and secure the print.

Is the mat archival and safe for photographs?
Answer. Yes. The board is lignin-free and pH-neutral, making it suitable for long-term display of prints and photographs.

Can I get a custom opening size?
Answer. Yes. Custom opening sizes are available upon request from the seller for nonstandard artwork.