21x34 Elite Grenoble A/P Heavy Linen 1-1/2" Deep #EG-2134

True Fibonacci Proportion - 21x34 Size

This special 21x34 size is part of the Fibonacci Series of intriguing sizes that are closely related to the Golden Mean. It's exact aspect ratio is 34:21 and is a truly unique and inspiring canvas size.

Check-out one of these other sizes in the same 34:21 aspect ratio:

13x21 • 34x55 • 55x89

Explore Related Products to this 21x34 Size:

• Acrylic Primed Linen Elite™: Pau™
• Acrylic Primed Linen Monet Pro™: Muir™ • Vintage L22U™ • Santa Cruz™ • Saint-Cloud™
• Oil Primed Linen Elite™: Isola™ • Poitiers™
• Oil Primed Linen Monet Pro™: Malibu™ • Vintage L21C™ • Ventura™ • Versailles™
• Acrylic Primed Cotton Elite™: Shasta™
• 3D™ Pro 2.5

Grenoble™ Acrylic Primed Artfix Linen

Our heaviest weight acrylic primed linen canvas. Great for large and small works with a very heavy body, yet has a pleasing medium surface tooth. It has a bright white tone.

• 100% Belgian Linen 8.6 oz; Primed Weight 14.5 oz per square yard
• Heavy Weight, Dense Weave, Medium Texture
• Double Sized and Double 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
• Linen has natural oils that prevent disintegration over time

Titanium Dioxide (TiO₂) Primer Pigment

Our primer is made with the highest-quality Titanium Dioxide white pigment, which is an excellent pigment for acrylic primed grounds, providing superior whiteness and maintaining excellent flexibility over time. Unlike some other common pigments, such as zinc dioxide, TiO₂ doesn't become brittle as it ages, helping to ensure that your painting will stand the test of time.

21x34 Frame Kit B2 Super Heavy Frame Offers the Ultimate Canvas Support!

• Drawing depicts the exact frame construction, not the proportion
• Precision Machined keyable Super Strong Stretcher Bars (1.5" deep by 2-1/4" wide) allow you to increase the canvas tension
• Super Strong Keyable Brace (3/4" x 3.25") and a regular Cross Brace Included
• The Bars have a clever utility groove on the inside perimeter of the frame to attach the cross braces
• Unique Keyable Cross Braces allow you to tension the canvas in the middle, where it's needed the most
• Cross braces are glued and stapled at the 'cross' for maximum support and rigidity
• Both corner keys and brace keys are pre-installed

Elite™ Professional 1.5" Deep B2 Bar • 1/2" Canvas Clearance

A Canvas Clearance of 1/2" 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.

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.

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 we stretch a canvas 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.

Sustainable Forests - A Precious Natural Resource

The air that we breathe depends upon our healthy forests the world over. For this reason, we only use lumber from the sustainable forests of the Pacific Northwest, so we can guarantee that our nation's precious natural timber resources are available for future generations.

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.

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 Elite™ 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

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

Tight'n'Up™ Liquid Canvas Retensioner

While all of our Masterpiece® Pro canvases are stretched very tightly and our frames have a built-in method to increase tension, we have another method to add canvas tension. Tight'n'Up™ Liquid Canvas Retensioner (sold separately) can be sprayed on the back of a canvas to repair most canvas tension issues.

With Tight'n'Up™, you can add tension to just a small area, or a large area. Simply spray it lightly on the back and brush it into the canvas, and within seconds, your canvas becomes tighter and stays tighter. The more you use, the tighter it gets.

Masterpiece® is a family-owned business operating in California since 1965 and producing the finest Stretcher Bars in North America. Our mission is to deliver the highest quality products that can be made, and 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 will easily discern our impeccable quality, and so will your clients and the people who will eventually acquire your art.