21x47 3D Pro Sierra Canvas 2-1/2" #DE-2147

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:

8x18 • 9x20 • 13x29 • 17x38 • 25x56 • 26x58 • 30x67 • 34x76 • 38x85 • 42x94 • 48x108 • 13x29

Explore Related Products to this 21x47 Size:

• Acrylic Primed Cotton: Monterey™ • Carmel™ • Tahoe™ • Sausalito™ • Shasta™
• Acrylic Primed Linen: Muir™ • Vintage L22U™ • Santa Cruz™ • Saint-Cloud™ • Grenoble™ • Pau™
• Alkyd / Oil Primed Linen: Malibu™ • Vintage L21C™ • Ventura™ • Versailles™ • Isola™ • Poitiers™
• Vincent™ Pro 7/8 • Monet™ Pro 1.5

Sierra™ 11.5oz Acrylic Primed Cotton

Heavy weight and body with a delightful medium tooth and texture; great for heavy paint applications and impasto.

• 100% Cotton 11.5 oz.; Primed Weight 14.6 oz. per square yard
• Heavy Weight, Medium Weave, Medium Texture
• Sized and Triple Primed with acid-free archival quality acrylic gesso
• Impenetrable ground prevents oil paint from leaching through and harming the canvas
• For acrylics, oils, alkyds, and water miscible oil paints

3D™ Pro 2.5 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 2.5" 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

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.

21x47 2.5" Deep Edge Heavy Frame Offers Maximum Support!

• Drawing depicts the exact frame construction, not the proportion
• 2.5" Deep Edge K2 Heavy Stretcher Bars are precision machined with a unique double tongue-and-groove corner joint that provides rock-solid torsional rigidity that resists warping or twisting, which is an important benefit for such a deep edge canvas
• One super strong 3/4" thick keyable brace provides maximum possible support for this 21x47 frame - Brace is permanently installed in the frame, but canvas tension may be increased by tapping-in the keys or wedges that slightly expand the size of the frame
• The Stretcher Bars have an proprietary utility groove on the inside perimeter of the frame which is used to attach braces and other optional frame supports
• The Masterpiece brace feature an exclusive system that allows you to increase the tension to the middle of the canvas, where the tension is needed the most; it's so unique it earned us a patent
• To increase canvas tension: 1) remove any staples in the corners and those that retain the brace keys in the middle, 2) tap all of the expansion keys further into their respective slots, 3) tighten and re-staple the canvas in the corners

Canvas Tension is in Your Control

In dry climates or air conditioned environments, the lack of moisture in the air causes wood frames to shrink and the canvas fibers to narrow and elongate making the canvas more slack and resulting in a loss of canvas tension. In some instances, the canvas could have waves on the surface resulting in an unsightly viewing experience.

Our 3D™ Pro 2.5 professional frames provide the functionality for you to slightly expand the size of the frame in the corners and the middle of the canvas, thereby increasing canvas tension all across the surface. The difference between a loose canvas and a tight canvas is just 1/8" of an inch, so a small adjustment using our corner and brace keys makes an important difference in canvas tension.

• Helps to prevent waves that occur in a loose canvas
• Increase canvas tension by tapping-in the corner and brace keys
• True professional class canvases make it possible for you to adjust the canvas tension

Cross Braces Make it Tighter

A tightly stretched canvas on an un-braced frame overpowers the Stretcher Bars causing them to bow inward and thereby lose tension. Sometimes that bow can expose a space in picture frames.

When a canvas is stretched on a properly supported frame, the cross-braces prevent the Bars from bowing thereby achieving maximum canvas tension. To increase the canvas tension even more, simply tap the corner and brace keys further in their slots. Properly supported frames provide you with the control over the canvas tension of your canvas and painting.

Sustainably Managed Forests Coexist with Mankind

We use lumber grown in the sustainable forests of the Pacific Northwest, where there’s more standing timber today than last century! There will always be a demand for wood pulp and fiber, but striking a harmonious balance with human coexistence is the essential strategy to which we subscribe. Sustainably managed forests increase our health and abundance of our forests which can be in harmony with this precious natural resource.

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.

MuseumWrap™ Stretching Technique

With more than a half a century of American engineering, Masterpiece® designs and builds its own proprietary stretching equipment that enables us to produce the finest and most tightly-stretched canvas on the market.

• Drum-tight stretch!
• Up to 50% tighter than other methods
• Balanced tension across the surface
• Uncut folded corners make it possible to remove and re-stretch canvas on the same size frame
• Usually the corner folds are on the long sides

We've pioneered and set trends, always putting quality at the forefront of everything we do. Our patents are a testament to our continuous quest for excellence. Engage with our products, and you'll not only see but feel the premium difference — a difference that your audience and patrons will undoubtedly recognize and value.

There are two sorts of beauty; one is the result of instinct, the other of study. ♦ Paul Gauguin

Paul Gauguin, with his innate ability to juxtapose the raw with the refined, highlights a fundamental dichotomy in the realm of artistic creation. Known for his ventures into the heart of Tahiti and his immersion into cultures untouched by Western conventions, Gauguin experienced firsthand the unbridled, instinctual beauty that emerges spontaneously from the soul. This 'instinctual beauty' is born from the immediacy of feeling, the unmediated expressions of the heart.

On the other hand, Gauguin, having been a part of the European art scene, understood the meticulous beauty that emerges from rigorous study, practice, and discipline. This 'studied beauty' requires artists to hone their skills, refine their techniques, and gain a deeper understanding of their medium. Both forms of beauty hold merit. For artists, we often find ourselves oscillating between these two poles, tapping into our raw instincts in one moment and relying on our learned techniques in another. Gauguin's insight serves as a reminder for us to embrace both facets, knowing that our art can be enriched when instinct and study merge, creating masterpieces that touch the soul and challenge the intellect.

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To enhance your creative exploration of our site, we offer the insightful wisdom of Paul Gauguin, our interpretation, and little one-of-a-kind portrait that we created. Now go paint!