40x105 3D Pro 3.5" Deep K3 Stretcher Frame Kit

True 21:8 Custom Proportion - 40x105 Size

Check-out one of these other sizes in the same 21:8 aspect ratio:

16x42 • 24x63 • 32x84

• Super strong 3D™ Pro K3™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
• For this 40x105 large size frame, the frame provides the ultimate foundation for your art with increased strength and stability
• Provides a 3.5" deep stretched canvas which makes a bold and commanding display
• 1-1/4" wide Stretcher Bars
• 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

3D™ Pro 3.5 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 3.5" 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.

Sustainability is about Reducing Deforestation

Choosing products made with sustainably sourced lumber is an important way for consumers to make a positive impact on the environment. By supporting sustainable forestry practices, we can help to reduce deforestation, promote biodiversity, and mitigate climate change. It's a simple and effective way to make a difference.

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 strengthÑminimizing risks of cracks, splits, or bendsÑbut 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.

50x115 is the Canvas Size Needed for this 40x105 Frame

Please note that you will need a canvas that is at least 10 Inches larger than the actual frame size to ensure proper stretching. This will provide ample material to stretch the canvas and attach it to the back of the frame. If you prefer to attach the canvas from the edge of the stretcher frame, you can reduce the size of your canvas by approximately 3/4" all the way around the frame. This will allow you to paint on the edge of the canvas and hang your artwork without needing a separate picture frame. And, if you ever need to remove the canvas from the frame and re-attach it, you'll have enough material to do that too.

Tight'n'Up™ Liquid Canvas Retensioner

One of our most appreciated products helps make your canvas tighter! Stretching a canvas tightly can be a challenge. Our Frame Kits include the Corner and Brace Keys that you will need to add tension, but Tight'n'Up™ Liquid Canvas Re-Tensioner is a way that you can use to add tension to the canvas without needed to use the keys. It canvas 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. Recommended for acrylic primed cotton or linen canvas. We do not recommend it for oil primed canvas because there are simply too many different types of oil primed canvas, but used conservatively at your own risk, it will tension any canvas.

From the heart of California, Masterpiece® has been weaving a legacy since 1965, curating the best Stretcher Bars North America has witnessed. Our unwavering dedication to quality and innovation has cast us in the limelight as the trendsetting stalwarts in the realm of fine-art canvases. The patents we hold are not just certificates but validations of our pursuit of perfection. Engage with our creations and feel the promise of unmatched quality, a promise that resonates with your clients and every future beholder of your masterpiece.

I feel a complete and endless liberty in all dimensions. ♦ Robert Delaunay

Robert Delaunay, a pivotal figure in the world of abstract art, often navigated the vast expanse of artistic possibilities with an intrepid spirit. His sense of endless liberty in all dimensions isn't merely a reflection of personal sentiment but echoes the broader evolution of art during his time. Breaking away from the conventions of realism, Delaunay and his contemporaries ventured into a realm where colors, forms, and techniques were limitless, and the confines of reality no longer tethered their visions.

Artists have always sought to transcend boundaries, to push beyond the limitations of medium, technique, or societal expectation. In a world where rules and traditions can sometimes constrict creativity, feeling a sense of liberty becomes essential. Delaunay's sentiment resonates with many of us because, as artists, we continuously strive for that freedom, yearning to explore every corner of our imaginations and every nuance of our craft.

Such a profound sense of freedom becomes the bedrock of innovation in art. Every canvas becomes a universe, every color a galaxy, and every stroke a star, charting paths previously untraveled. Delaunay's declaration serves as a beacon, illuminating the boundless horizons we can explore and reminding us that within the vastness of artistic possibility, we are truly free.

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We hope to inspire your art with this wonderful quote and our interpretation along with our own one-of-a-kind portrait of Robert Delaunay..got to love it!