21x47 3D Pro 3.5" Deep K3 Stretcher Frame Kit

True Dynamic Root-5 Proportion - 21x47 Size

This 21x47 is one of our Dynamic Root-5 Rectangle Root-5 Rectangle series.

The Dynamic Root-5 rectangle is an inspiring proportion based on organizing your spatial composition with endless symmetrical divisions. The premise in Jay Hambridge's 1926 book is that the Dynamic Symmetry of individual elements are informed by their relationship to the entire composition. This very special proportion is guided by the square roots of integers and has a storied and historical basis in art.

It involves the use of geometric shapes and patterns in the proportion of the square root of 5 to 1 to create balance and harmony in a composition. This can be achieved by dividing a composition into a grid of squares or rectangles, and then placing elements within the grid in a way that follows the principles of dynamic symmetry. Dynamic symmetry is often used to create a sense of order and structure in a composition, and can be particularly useful for creating compositions that are harmonious and pleasing to the eye.

Explore other sizes in this same 47:21 aspect ratio:

13x29 • 17x38 • 24x54 • 25x56 • 26x58 • 30x67 • 32x72 • 34x76 • 38x85 • 40x90 • 42x94 • 46x103 • 47x105 • 48x108 • 51x114 • 54x120

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

Finger Jointed Wood is not meant for Stretcher Bars

Solid wood makes the most dependable Stretcher Bar, because one homogeneous wood member is going to behave similarly across the entire length of the Bar. Whereas, with finger-jointed wood is made-up of multiple pieces of wood, sometimes on the actual joint itself, presenting multiple points of failure which no one can control.

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 add or reduce value to your final painting. The fact is, you don't want problems, and finger joints only increase that risk of the wood falling apart in the future.

The glue used to bind finger joints is a water based adhesive and when that wood is exposed to high humidity environments, particularly with exterior walls, the glue joints can give-up. 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 3D™ Pro K3™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
• For this 21x47 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

Sustainability Fights Against Climate-Change

Sustainable forestry practices are an important tool in the fight against climate change. By using lumber from sustainably managed forests in our products, we can help to reduce the carbon footprint of our business and support the health of the planet. It's a win-win for everyone involved.

Specially Dried and Heat Treated Lumber

We source our wood from a select group of top-tier environmentally conscious lumber mills in the Pacific Northwest. These mills specially dry and heat-treat the lumber to our specifications, resulting in about half the moisture content compared to wood from typical home improvement centers or lumber yards. This process makes the wood stronger, reducing the likelihood of cracking, splitting, or warping. While the wood we use comes at a higher cost, it ensures a more dimensionally stable end product. This stability is crucial for crafting fine professional canvases that support your invaluable art over time.

31x57 is the Canvas Size Needed for this 21x47 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.

With deep family ties and a legacy spanning since 1965 in California, Masterpiece® has been the epitome of unmatched quality in Stretcher Bars across North America. Our commitment to pioneering excellence has crowned us as the forerunners in the world of professional fine-art canvases. Bolstered by our patented innovations, our products exude a caliber that's in a league of its own. One touch, and the unparalleled quality becomes palpable, leaving an indelible impression on your clients and all future admirers of your art.

I believe that one should not think too much about certain mysteries in art; it is better not to fathom them. ♦ Paul Gauguin

The enigmatic Paul Gauguin, renowned not only for his post-impressionist masterpieces but also for his ventures into the deeper realms of human existence, often strayed from conventional artistic wisdom. Gauguin's career was defined by a fearless exploration of the unknown, both in terms of technique and theme. And yet, his assertion about the mysteries of art reveals a profound reverence for the inherent magic that underlies the artistic process.

It's a reminder that while understanding and technique are crucial, there's a sacred space in art where intuition and instinct reign supreme. In this realm, the conscious mind may falter, trying to dissect and decode the indescribable. By allowing some mysteries to remain unsolved, we preserve the allure and wonder that makes art so compelling. As we navigate our path, it's this balance between knowledge and reverence for the unknown that can propel our work into the realm of the extraordinary, making it not just an expression, but an experience for both the creator and the viewer.

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We've handpicked this quote and our interpretation of it's meaning to inspire your art. And we honor the legacy of Paul Gauguin by creating this one-of-a-kind portrait to tie it all together. Start Painting!