21x120 3D Pro 3.5" Deep K3 Stretcher Frame Kit

True 40:7 Custom Proportion - 21x120 Size

Explore other sizes in this same 40:7 aspect ratio:

14x80

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 21x120 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

What is Sustainable Forestry?

To a forester, the term "sustainable" could mean exercising industry adopted forestry practices to maintain a forest indefinitely. To a logger, the process of proper care for the trees remaining after a harvest. To a landowner, their interest may lie in keeping their forest in the family. And to those of involved in the process of making and using wood-based art supplies, it can mean promoting and supporting an industry dedicated to the preservation of our precious natural resource. We can all do our part to care for our national forests.

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.

31x130 is the Canvas Size Needed for this 21x120 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 don't believe in art schools. I believe in individual artistic education, without professors. ♦ Paul Gauguin

Paul Gauguin, with his characteristic audacity, boldly proclaims a sentiment that might be considered radical, especially in the academic circles of his time. Driven by an untamed spirit and a profound belief in the intrinsic value of self-discovery, Gauguin's life was defined by his unwavering pursuit of authenticity in art.

While institutional education has its merits, offering structured guidance and a communal environment, Gauguin's assertion highlights the undeniable power of self-directed exploration. For many artists, the path to mastery is a deeply personal one, often characterized by moments of introspection and individual experimentation. After all, art is an extension of the self, a manifestation of our unique perspectives and emotions. By bypassing traditional education, we have the liberty to chase our own curiosities, to make mistakes and learn from them, and ultimately, to find our voice in an unfiltered manner.

In an age where information is abundantly available, the idea of self-education isn't as far-fetched as it once might have been. Artists today can access a wealth of knowledge, drawing inspiration from global sources and various epochs. But Gauguin's words remind us of the importance of cultivating our intuition and trusting our instincts. The crux of his message is not to shun all formal learning but to recognize and champion the unparalleled growth that arises when we, as artists, take the reins of our own artistic education.

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We love fanning the flames of your artistic passion. Immerse yourself in the wisdom of this intriguing quote and context, and enjoy our own unique creation of this portrait of Paul Gauguin. Paint your heart out!