13x21 3D Pro Raw No 12 Canvas 2-1/2" #DR-1321

True Fibonacci Proportion - 13x21 Size

This special 13x21 size is part of the Fibonacci Series of intriguing sizes that are closely related to the Golden Mean. It's exact aspect ratio is 21:13 and is a truly unique and inspiring canvas size.

Explore other sizes in this same 21:13 aspect ratio:

8x13 • 21x34 • 34x55 • 55x89

Explore Related Products to this 13x21 Size:

• Raw Unprimed Cotton: Raw No 10 • Raw No 8
• Raw Unprimed Linen: Torrey Pines™ • Mandalay™
• Acrylic Primed Cotton: Monterey™ • Carmel™ • Tahoe™ • Sausalito™ • 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.

13x21 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

Tree Replanting - Essential to Sustainably Managed Forests

Harvesting timber provides humans with an essential natural resource, but replanting trees at a rate higher than a harvest is a key component in humanity's effort to guarantee a healthy forest for the future. Increasing our number of trees is just as essential to our economy, as the harvest itself, which is why we select only timber harvested from responsibly managed forests.

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.

Art is not what you see, but what you make others see. ♦ Edgar Degas

When Edgar Degas mused about art, he wasn't just talking about the curve of a ballerina's spine or the soft shadows cast by the gaslights in 19th-century Parisian cafes. No, he was diving into the depths of the artist's psyche. For Degas, art was a conversation, a dialogue between the artist and the observer. And isn't that what many of us, as artists, hope to achieve? We pour our emotions, experiences, and stories onto the canvas, hoping to ignite a spark, a recognition, or a moment of reflection in those who encounter our work. It's a game of whispers, where we seek not to replicate the world as it is, but to offer a new lens, a fresh perspective that might just make someone pause and think, Ah, so that's what it feels like.

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Echoing the timeless spirit of artistry, we bring you this quote paired with our beautiful portrait of Edgar Degas that we created. Let your colors on the canvas speak!