15x21 3D Pro Raw No 12 Canvas 2-1/2" #DR-1521

True 7:5 Photography Proportion - 15x21 Size

Another widely used proportion in photography is the 7:5 aspect ratio, but is relatively uncommon in art, save for the 5x7 size. It is commonly accepted as a pleasing proportion. Some artists choose this proportion to add visual interest by breaking away from more traditional shaped canvas sizes. There are only a handful of standard canvas sizes in this ratio, but there are a whole collection of (what we call) Lost Sizes in this aspect ratio, which are often unknown sizes that add intrigue to the final composition.

Explore other sizes in this same 7:5 aspect ratio:

10x14 • 20x28 • 25x35 • 30x42 • 35x49 • 40x56 • 45x63 • 50x70 • 55x77 • 60x84

Explore Related Products to this 15x21 Size:

• Raw Unprimed Cotton: Raw No 10 • Raw No 8
• Raw Unprimed Linen: Torrey Pines™ • Mandalay™
• Acrylic Primed Cotton: Monterey™ • Carmel™ • Tahoe™ • Heavy Weight 14oz cotton • Sierra™

Raw #12 Cotton 11.5 oz Unprimed

Rugged heavy weight unprimed canvas. Take control of your art, prepare your own ground, or use bare canvas expanses as part of the art. Great for staining or pouring, resulting in a fluid and spontaneous convergence of the image and fabric.

• 100% Cotton 11.5 oz. per square yard
• Heavy Weight, Dense Weave, Texture

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

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.

15x21 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
• No Brace Required for this size
• To increase canvas tension, remove any staples in the corners and tap all of the expansion keys further into their respective slots, then tension and re-staple the canvas in the corners

Our Ecosystem Depends on Healthy Forests

Forests play a vital role in our planet's ecosystem. They absorb carbon dioxide, filter air and water, and provide habitat for countless species of plants and animals. By using sustainably sourced lumber, we can help to protect these important ecosystems and ensure that they continue to provide these valuable services for generations to come.

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

For over half a century, Masterpiece® has been synonymous with top-tier artist canvases in North America. A canvas isn't just fabric; it's an invitation to create, to turn raw talent into timeless art. Choose wisely, for your art's endurance reflects your legacy and brand distinction.

A work of art is the trace of a magnificent struggle. ♦ Robert Henri

Robert Henri, a leading figure of the Ashcan School of American realism, believed in the importance of capturing the raw, unfiltered essence of everyday life in his work. He often emphasized the vitality of experience and the artist's engagement with their subject. Henri's inclination wasn't merely towards the external appearance of a subject but its inner spirit and emotion.

This sentiment is reflected profoundly in the given quote. The magnificent struggle Henri speaks of can be perceived in multiple dimensions. On one hand, it signifies the internal battle an artist undergoes in the process of creation — the conflict of ideas, the wrestle with technique, and the profound search for meaning. On the other, it can symbolize the story embedded within the art piece itself, encapsulating the subject's challenges, emotions, and narratives. For us, as artists, every brush stroke, every chisel mark, and every note played is an echo of a struggle faced, a challenge overcome, or an emotion expressed. It is a constant reminder that our creations are not just products of inspiration, but also of perseverance, determination, and resilience.

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We curated this empowering quote with some context and hope you find it insightful, plus we created this unique portrait of Robert Henri to make it a bit more intriguing. Now get to work on your own!