63x99 3D Pro 3.5" Deep K3 Stretcher Frame Kit

True 11:7 Lucky Numbers Proportion - 63x99 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 • 21x33 • 28x44 • 35x55 • 42x66 • 49x77 • 56x88 • 70x110

3D™ Pro 3.5 Stretcher Bar • 1/2" Canvas Clearance

1/2" Canvas Clearance 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.

• Produces a 3.5" deep stretched canvas (Actual depth is slightly thinner)
• 1.25" wide Stretcher Bar
• 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

Solid Wood is Archival - Finger Jointed Wood is Not

We only use Solid Wood to build our Stretcher Bars because a solid piece of wood will last indefinitely. When we speak of archival value, it's not just the paint you use and the quality of your canvas and ground, even the wood choices manufacturers make are part of the archival process.

The principal reason manufactures use finger jointed wood is reduce cost, not increase archival value. Wood constantly grows and shrinks when the environment becomes hotter, or colder, or more humid, or more dry. Because finger jointed wood is made-up of multiple and varied pieces of wood, with varying grain patterns and densities, they each absorb and shed moisture at varying rates, which works on the glue joints that hold them together, causing the wood to bow and the joints to eventually fail, and certainly not consistent with increasing the archival value of your artwork frame support.

As a manufacturer, we do our part to conserve as much wood as possible, and still provide a quality made product that will out-perform any other in the marketplace.

• Super strong 3D™ Pro K3™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
• For this 63x99 large size frame, the frame provides the ultimate foundation for your art with increased strength and stability
• Provides a 3.5" deep stretched canvas which makes a bold and commanding display
• 1-1/4" 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 Environment Promotes a Sustainable Economy

The use of lumber from sustainably managed forests is not only environmentally responsible, it also helps to support the economy and preserve jobs in the forestry industry. By choosing products made with sustainably sourced lumber, consumers can help to ensure that these industries remain strong and sustainable for years to come.

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.

73x109 is the Canvas Size Needed for this 63x99 Frame

Please note that you will need a canvas that is at least 10 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

I think that little by little I'll be able to solve my problems and survive. ♦ Frida Kahlo

Frida Kahlo, a name synonymous with resilience, faced immense challenges throughout her life. From her grievous accident at a young age to her tumultuous relationship with Diego Rivera, and her persistent health issues, she faced adversity with an unyielding spirit. The canvas became her confidante, a place where she could lay bare her vulnerabilities, fears, and hopes.

Her statement, laden with hope, is a beacon for artists navigating the complexities of life and their creative path. Every brush stroke, every chiseled piece, and every written line is a testament to the human spirit's ability to persevere. Like Kahlo, artists too face moments of doubt, of struggle, and of hope. And in those moments, it's crucial to remember that with patience and persistence, we can work through our challenges, refine our craft, and draw strength from our experiences. Our art becomes not just a reflection of our skill, but also a testament to our spirit's resilience.

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We offer you these words of wisdom and our take on the message in hope to inspire your art. We also pay tribute by creating this unique portrait of Frida Kahlo. Go paint!