21x33 Elite Professional 1.5" Deep B2 Stretcher Frame Kit

True 11:7 Lucky Numbers Proportion - 21x33 Size

The 11:7 aspect ratio creates a distinct horizontal emphasis while still maintaining enough height for vertical elements to play a role. The width invites a natural flow across the canvas, making it perfect for landscapes, narrative scenes, or compositions that stretch laterally but still need that vertical grounding.

The ratio’s off-balance, slightly stretched feel adds tension, making compositions feel dynamic without being overwhelming. The 11:7 proportion encourages exploration of movement and space, allowing subjects to breathe while still offering enough height to create depth and contrast. The fact that it combines lucky numbers, 7 and 11, adds an extra layer of appeal, bringing both an artistic and symbolic charm to the canvas. It’s a format that balances horizontal exploration with just enough verticality to keep the viewer engaged.

Explore other sizes in this same 11:7 aspect ratio:

14x22 • 28x44 • 35x55 • 42x66 • 49x77 • 56x88 • 63x99 • 70x110

Elite™ Professional 1.5" Deep B2 Bar • 1/2" Canvas Clearance

A Canvas Clearance of 1/2" is the space between the Bar and the canvas. Generally speaking, more clearance reduces the risk of the canvas touching the wood and creating unsightly lines during painting. Our design provides the optimal clearance so as not to impact your painting, but still leaving enough wood to the maximize strength of the Stretcher Bar.

No Finger Joints!

Solid Wood is far superior to finger jointed wood, which is many small pieces glued together, each with varying grain densities that absorb and shed moisture at varying rates, expanding and contracting non-uniformly as environmental conditions change, and causing the wood to bow and the finger joints to eventually fail.

A single homogeneous kiln-dried solid wood Stretcher Bar outperforms and outlasts a finger jointed Bar whose sole purpose is to save the manufacturer cost, not contribute to the archival value of artwork intended to last a millennium. As a manufacturer, Masterpiece® does its part to conserve as much wood as possible, and still provide a quality product that will out-perform any other in the marketplace.

• Super strong Elite™ B2™ Stretcher Bar is 50% stronger than most others in its class
• For this 21x33 large size frame, the frame provides the ultimate foundation for your art with increased strength and stability
• Produces a 1.5" deep stretched canvas
• 2-1/4" wide Stretcher Bars
• All Bars have an exclusive groove on the inside perimeter of the frame to which cross braces and Diamond Corner Braces attach
• Solid Ponderosa Pine or Fir from the Pacific Northwest

Sustainable Forests - A Precious Natural Resource

The air that we breathe depends upon our healthy forests the world over. For this reason, we only use lumber from the sustainable forests of the Pacific Northwest, so we can guarantee that our nation's precious natural timber resources are available for future generations.

Specially Dried and Heat Treated Lumber

Our wood is handpicked from a curated group of environmentally responsible lumber mills in the Pacific Northwest. By adhering to our precise drying and heat-treatment standards, these mills produce lumber with nearly half the moisture you'd find in common home improvement outlets or lumber yards. This meticulous process not only enhances the wood's strength—minimizing risks of cracks, splits, or bends—but also elevates its dimensional stability. Such quality, despite its premium, is paramount in creating professional canvases designed to uphold the sanctity of your cherished art throughout the years.

27x39 is the Canvas Size Needed for this 21x33 Frame

Please note that you will need a canvas that is at least 6 Inches larger than the actual frame size to ensure proper stretching. This will provide ample material to stretch the canvas and attach it to the back of the frame. If you prefer to attach the canvas from the edge of the stretcher frame, you can reduce the size of your canvas by approximately 3/4" all the way around the frame. This will allow you to paint on the edge of the canvas and hang your artwork without needing a separate picture frame. And, if you ever need to remove the canvas from the frame and re-attach it, you'll have enough material to do that too.

Masterpiece® is a family-owned business operating in California since 1965 and producing the finest Stretcher Bars in North America. We deliver the highest quality and highest performing products in the business. We are widely recognized as the nation's leader and trendsetter of professional quality fine-art canvas. We own several patents that make our products perform superior to any other on the market. Once you touch one of our products, you'll immediately recognize our impeccable quality—and more importantly, so will your clients and those who acquire your art

Vision is the true creative rhythm. ♦ Robert Delaunay

Robert Delaunay, a beacon of the Orphism art movement, held an intriguing perspective on art and the world around him. His assertion about vision being the very heartbeat of creativity throws light on how he approached his work. To him, seeing wasn't a mere passive act, but a dance between the mind and the world it perceives.

Having a vision is more than having an idea; it's about tapping into a flow, a cadence that guides our hand, mind, and heart. As we immerse ourselves in our craft, it is this rhythm, this unique pulse of our vision, that defines and elevates our creations. By truly seeing, by letting our perception resonate with our innermost feelings, we manifest art that is both deeply personal and universally compelling.

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We curated this insightful quote by Robert Delaunay, and our interpretation thereof; plus we made this portrait in the spirit of creativity. Time to create your own expression!