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Glazing Guide: Acrylic vs. Glass for Custom Frames

Glazing Guide: Acrylic vs. Glass for Custom Frames

Glazing is the clear front layer that sits between your artwork and the outside world. It protects against dust, moisture, and physical contact, and the type you choose affects both how your piece looks on the wall and how well it holds up over the years. Here's what you need to know.

Glass or Acrylic: Which One to Use

Standard Glass

Glass gives you the sharpest optical clarity. It resists scratches, doesn't yellow, and costs less than most specialty options. The downsides: it's heavy (especially above 20x24), it can shatter, and it reflects more light than acrylic. If your frame is staying put in a low-traffic room and you're not shipping it, glass works well. For anything large, portable, or going through the mail, acrylic is the better call.

Acrylic (Plexiglass)

Acrylic weighs about half as much as glass, won't shatter if knocked off the wall, and ships far more safely. That's why we default to framer's grade acrylic on all shadowbox and large-format frames. The tradeoffs: acrylic scratches more easily than glass, can attract dust from static, and lower-grade versions may yellow over time. Our framer's grade acrylic avoids the yellowing issue. It's professional-quality material, not the bargain sheeting you'd find at a hardware store.

UV Protection: When It Matters and When You Can Skip It

Sunlight and indoor lighting emit UV rays that fade colors, yellow paper, and break down materials over time. UV-protective glazing filters those rays out while keeping the view clear. Not every piece needs it, but anything valuable, sentimental, or irreplaceable should have it.

Framer's Grade Acrylic

Our standard acrylic blocks a significant portion of UV light and provides solid everyday protection. It's included as the default glazing on most frames and is the right choice for photographs, prints, posters, and general memorabilia.

Non-Glare Acrylic Upgrade

For pieces that sit in direct or bright light, non-glare acrylic reduces reflections while adding enhanced UV protection. This is the option to choose for original artwork, limited editions, signed items, and anything you'd be upset to see fade.

Use UV-protective glazing when: the frame hangs in a room with windows or skylights, the item is valuable or irreplaceable, you're framing color photographs or original artwork, or the display needs to last decades without visible fading. You can skip the upgrade when: framing mass-produced posters you'll swap out, the frame goes in a windowless room, or you're working within a tight budget.

Standard vs. Non-Glare Acrylic

Standard Acrylic

Maximum sharpness and clarity. You'll see reflections in bright rooms and from certain angles, but the image quality behind the glazing is as clear as it gets. Best for frames in rooms with controlled lighting, hallways without windows opposite, or any spot where glare isn't an issue.

Non-Glare Acrylic

The surface is micro-etched to scatter reflected light, which eliminates the mirror effect you get with standard glazing. The tradeoff is a very slight softening of the image, barely noticeable on most displays. Non-glare works best when the glazing sits close to the artwork. In deep shadowbox frames where there's significant space between the acrylic and the object inside, standard acrylic often looks better.

Worth knowing: the deeper the frame, the hazier non-glare acrylic can appear because the etched surface diffuses light over a greater distance. For shadowbox frames with 1 inch or more of depth, standard acrylic typically delivers a cleaner view.

When to Invest in Premium Glazing

For high-value or irreplaceable items, professional-grade anti-reflective glazing offers the best of everything: near-invisible clarity, 99% UV blocking, and no glare from any angle. Unlike standard non-glare, it works well even when the glazing isn't touching the artwork, which matters for shadowbox displays with depth. The cost is significantly higher (3-4x standard), so it makes sense for original artwork, limited editions, signed pieces, valuable photographs, and family heirlooms. For everyday framing, our standard framer's grade acrylic is more than sufficient.

Picking the Right Glazing for Your Frame

Decorative or temporary displays: Standard acrylic. Posters, seasonal prints, art you rotate out. No need for premium glazing on pieces you'll swap.

Family photos and personal items: Framer's grade acrylic (our default). Solid UV protection, lightweight, safe for shipping. Covers most framing needs.

Bright rooms or window-facing walls: Non-glare acrylic. Eliminates reflections from windows and overhead lighting. Best for shallow frames and standard picture frames.

Valuable or irreplaceable pieces: Non-glare acrylic at minimum. For originals, signed items, and heirlooms, consider professional-grade anti-reflective glazing for maximum long-term protection.

Large frames or shipped orders: Acrylic only. Glass becomes dangerously heavy and fragile above 24x36. All our shadowbox and oversized frames ship with acrylic as standard.

Kids rooms, hallways, or public spaces: Acrylic. Shatter-resistant, lightweight, safer if something gets knocked off the wall.

A Few Other Things to Know

Thickness

Glazing thickness runs 2.0 to 2.5mm for most frames. For oversized pieces above 30x40, thicker stock (3-4mm) helps prevent bowing.

Cleaning and Maintenance

Glass cleans easily with any standard glass cleaner. Acrylic needs a dedicated acrylic cleaner. Household glass cleaners contain ammonia that clouds the surface over time. We sell NOVUS Acrylic Cleaner in our accessories section, and our care instructions page covers the full cleaning process.

Climate and Location

Climate matters. In humid environments, glass holds up better since acrylic can warp slightly. In earthquake-prone areas, acrylic is the safer option, since there's no shattered glass if a frame falls. Coastal locations need UV protection regardless of glazing type, as sun and salt air accelerate fading.

Glazing Quick Reference

  • Standard Acrylic: Clear, affordable, good for everyday framing
  • Framer's Grade Acrylic: UV blocking, our default on most frames
  • Non-Glare Acrylic: Reduces reflections, best for bright rooms and shallow frames
  • Professional Anti-Reflective: Maximum clarity and UV protection, for high-value items
  • Standard Glass: Sharpest optics, best for small frames in controlled environments

Getting Started

Open the frame designer to see glazing options and pricing for your specific frame size. The preview updates in real time as you switch between standard and non-glare acrylic.