The Evolution of Traditional Framing: Why Rabbet Depths Are Shrinking
Traditional framing has always balanced aesthetics, functionality, and cost. Historically, frames featured generous rabbets—the recessed area on the back where the canvas sits—to fully enclose stretcher bars. A 3/4" to 1" rabbet was commonplace, providing ample space for standard canvases.
Today, rising lumber costs have driven manufacturers to optimize. Shallower rabbets of 3/8" to 5/8" reduce wood usage without compromising the frame's front-facing appeal. This isn't just a budget move; it's a response to market demands for sustainable, affordable options.
For artists, this means a 1 1/2" deep canvas (common for gallery-wrapped pieces) may protrude from the back of a modern frame. But here's the key perspective from Articient: traditional framing rabbets were never truly deep enough to hide thick canvases completely anyway. Even in the "good old days," protrusion was common. Most viewers focus on the artwork, not the back edge. If a bit sticks out, don't sweat it—galleries rarely do.
That said, visibility depends on frame design. Let's break it down with practical examples.
How Frame Width and Overhang Influence Canvas Protrusion
When pairing traditional framing and offset clips, the frame's width plays a starring role in hiding any backend exposure. Wider mouldings create more "overhang"—the lip extending over the canvas edge—which masks protrusion effectively.
Consider these Articient favorites:
- The Vendue frame: At 3 1/4" wide, it offers substantial overhang. Pair it with a 1 1/2" canvas in a 1/2" rabbet, and nearly 1" may protrude. Yet, the 3+" overhang hides it seamlessly. Our gallery clients use this combo routinely without a second thought.
- The Middleton frame: 3" wide, it provides similar forgiveness. The generous lip draws the eye forward, making backend details irrelevant.

Side profile of 1 1/2" canvas in a 8x8 Vendue Wide Black Gold frame
Conversely, narrow cap or stem-style frames (often under 2" wide) with shallow rabbets amplify issues. A 3/4" rabbet on a slim moulding leaves little overhang. Insert a 1 1/2" canvas, and the protrusion becomes glaringly visible from the side—definitely not ideal for professional displays.
This is subjective, of course. Some artists embrace a "floating" look where the canvas edges show intentionally. Others prefer a flush fit. The point? Traditional framing and offset clips give you control. Wider profiles minimize worries; narrower ones demand precision.
Articient's Approach: Curating Flexible Mouldings for Real-World Needs
At Articient, we curate our collection with versatility in mind. When selecting mouldings for traditional framing, we prioritize deeper rabbets where possible. If two similar cap or stem styles exist—one with a 1" rabbet and another with 1 3/4"—we opt for the deeper option.
Why? Flexibility is king. A thin panel fits either, but a 1 1/2" canvas won't work in the shallower one without aids. Deeper rabbets accommodate standard, deep, or even custom stretcher depths. This curation ensures our artists and galleries can frame without compromises, adapting to any canvas thickness.
Our mouldings aren't just about depth; they're designed for durability and style. From ornate classics to minimalist stems, each supports traditional framing and offset clips for secure, polished results.
Mastering Offset Clips: The Math and Mechanics for a Perfect Fit
When a canvas exceeds the rabbet depth, offset clips bridge the gap. These metal hardware pieces secure the canvas from behind, preventing wobble and ensuring a tight presentation. They're indispensable in modern traditional framing.
Here's the simple math to choose the right size:
- Measure your canvas depth (e.g., 1 1/2" for a standard gallery wrap).
- Measure the frame's rabbet depth (e.g., 1/2").
- Subtract the smaller from the larger: 1 1/2" - 1/2" = 1".
You need 1" offset clips. They extend exactly 1" to hold the canvas flush against the frame's lip.
What if no exact size exists? Go larger and adjust. A 1 1/4" clip for a 1" gap works fine—use pliers or a hammer to bend the ends slightly for a snug fit. This tweak is quick, requiring minimal force, and creates a custom hold.
Pro tips for using offset clips in traditional framing:
- Install 4–8 clips per frame, depending on size (more for larger pieces).
- Position them evenly around the perimeter, screwing into the stretcher bar and frame.
- For wood frames, pre-drill to avoid splitting.
- Metal offset clips are reusable and rust-resistant—perfect for long-term displays.
Galleries love this method because it's non-invasive. No glue, no damage to the artwork. Just secure, reversible framing.
Practical Scenarios: Traditional Framing and Offset Clips in Action
Let's apply this to common setups:
Scenario 1: Wide Moulding, Thick Canvas Frame: Meeting (3 3/4" wide, 5/8" rabbet). Canvas: 1 1/2" deep. Calculation: 1 1/2" - 5/8" ≈ 7/8". Solution: 1" offset clips. The ample overhang hides everything—zero visibility issues.
Scenario 2: Narrow Stem Frame, Standard Canvas Frame: Slim cap style (1 1/2" wide, 3/8" rabbet). Canvas: 3/4" deep. Calculation: 3/4" - 3/8" = 3/8". Solution: 1/2" offset clips (bend if needed). Minimal protrusion, but choose a wider frame if side views matter.
Scenario 3: Oversized Gallery Wrap Frame: Custom 4" wide, 1/2" rabbet. Canvas: 2" deep. Calculation: 2" - 1/2" = 1 1/2". Solution: 1 1/2" or 1 3/4" clips. Bend for precision.
In all cases, traditional framing and offset clips deliver. Our clients report that once installed, the setup is rock-solid, with canvases staying put through transport and hanging.
Why Artists and Galleries Trust This System
The beauty of traditional framing and offset clips lies in its simplicity and adaptability. Shallower rabbets save costs without sacrificing quality. Wider mouldings provide natural camouflage. Offset clips handle the rest with minimal effort.
At Articient, we've seen thousands of pieces framed this way. From emerging artists to established galleries, the consensus is clear: protrusion is a non-issue when approached practically. Focus on the art, not perfection in hidden areas.
Ready to frame your next masterpiece? Explore Articient's flexible mouldings designed for every canvas depth. Whether you're dealing with cost-driven changes or seeking that perfect fit, traditional framing and offset clips are your reliable allies.
