18x18 3D Pro Muir Canvas 2-1/2" #DA-1818

True 1:1 Square Proportion - 18x18 Size

The 18x18 square size is a little less common but gaining in popularity.

The square is perhaps the most intriguing proportion, as it is root of all of the other proportions. It is commonly used in both photography and art. Squares are typically used as the center canvas of a triptych or as a single canvas hung at a 45° angle. The square proportion is long used with medium format professional cameras, and most photographs we see on websites and social media are based on square images. Since all sides of the canvas are the same length, your eye is drawn evenly across the surface of the painting creating a sense of harmony, balance, and a generally a pleasing visual experience. The square format is also a good choice for artists who focus on geometric shapes or patterns in their work, as the regularity of the square shape can help reinforce these elements. Some artists enjoy the challenge of working within the confines of a square format, as it forces them to think creatively resulting in intriguing compositions.

Explore other sizes in this same 1:1 aspect ratio:

6x6 • 7x7 • 8x8 • 9x9 • 10x10 • 12x12 • 14x14 • 16x16 • 20x20 • 22x22 • 24x24 • 27x27 • 30x30 • 32x32 • 34x34 • 36x36 • 39x39 • 40x40 • 42x42 • 48x48 • 50x50 • 54x54 • 60x60 • 72x72

Explore Related Products to this 18x18 Size:

• Acrylic Primed Linen: Vintage L22U™ • Santa Cruz™ • Vintage L22U™ • Grenoble™ • Pau™
• Acrylic Primed Cotton: Monterey™ • Carmel™ • Tahoe™ • Heavy Weight 14oz cotton • Sierra™
• Alkyd Oil Primed Linen: Malibu™ • Ventura™
• Oil Primed Linen: Vintage L21C™ • Versailles™ • Isola™ • Poitiers™
• Hardcore Canvas Panel: Muir™
• Vincent™ Pro 7/8 • Monet™ Pro 1.5 • 3D™ Pro 3.5

Muir™ Acrylic Primed Belgian Linen

Characteristic linen type surface texture. It has a bright white tone.

• 100% Belgian Linen 5 oz.; Primed Weight 12 oz. per square yard
• Medium Weight, Open Weave, Textured Surface
• 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.

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.

18x18 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.

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

Our mission at Masterpiece® is to deliver the premium quality products that add value to your art. We are widely recognized as the nation's leader and trendsetter of professional quality fine-art canvas. Not only do we have the widest selection of products, but we feature intriguing aspect ratios and sizes with a purpose to add new dimensions to your art.

Nature never deceives us; it is always we who deceive ourselves. ♦ Jean-Jacques Rousseau

Jean-Jacques Rousseau, a polymath who dabbled in music, philosophy, and literature, held a deep reverence for nature and its unadulterated truths. He believed that human beings, in their quest for civilization and progress, often strayed from the innate goodness and simplicity of their natural state. The essence of this quote reflects his core belief that while nature remains constant in its truths, humans often wear masks of self-deception, clouded by societal norms and personal insecurities.

Artists, in their pursuit of expression, often turn to nature for inspiration and guidance. The raw beauty of the natural world offers a canvas of authenticity, urging us to shed our pretenses and embrace genuine emotion. When our art mirrors nature's truths, it holds an undeniable power. However, when we allow external influences or internal fears to sway our vision, we risk losing that purity. Rousseau's words encourage us, as artists, to be vigilant and honest in our self-reflection, ensuring that our creations remain untainted by the shadows of deception.

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Embrace the synergy of this profound quote with our interpretation of it's meaning with a nice little portrait that we created of Jean-Jacques Rousseau. Time to create!

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.