18x29 3D Professional 2.5" Deep K2 Stretcher Frame Kit

True Golden Mean Proportion - 18x29 Size

This 18x29 size is one of our Golden Mean sizes, considered the most pleasing shape to the eye!

The Golden Ratio, also known as the Golden Mean or Divine Proportion, is considered the most aesthetically pleasing proportion to the human eye. This proportion has been used in art and architecture for thousands of years, and countless examples can be found in nature, plant life, galaxies, and the human body. The Golden Mean can also be used as a guide to arrange your subjects on the canvas in concert with other Golden Mean shapes like an ellipse, star, triangle, and spiral, resulting in intriguing compositions. Many famous artists, such as Michelangelo, Da Vinci, Mondrian, Botticelli, Dali, and Seurat, have used this proportion in their art, and many contemporary artists continue to use it exclusively. The Golden Ratio can even produce some mathematically intriguing relationships that relate directly to art, architecture, science, and human intrigue. If you're looking for a challenge and inspiration, consider using a canvas in the proportion of the Golden Mean to create a composition that will come alive in the most intriguing ways!

Explore other sizes in this same 29:18 aspect ratio:

12x19 • 15x24 • 16x26 • 20x32 • 23x37 • 26x42 • 28x45 • 30x48 • 31x50 • 33x53 • 36x58 • 37x60 • 39x63 • 42x68 • 46x74 • 47x76 • 50x81 • 52x84 • 60x96 • 60x97 • 63x102 • 68x110 • 71x115 • 73x118

• Super strong 3D™ Pro K2™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
• For this 18x29 large size frame, the frame provides the ultimate foundation for your art with increased strength and stability
• Provides a 2.5" 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 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

No Finger Joints!

Solid Wood is far superior to finger jointed wood, which is many small pieces glued together, each with varying grain densities that absorb and shed moisture at varying rates, expanding and contracting non-uniformly as environmental conditions change, and causing the wood to bow and the finger joints to eventually fail.

A single homogeneous kiln-dried solid wood Stretcher Bar outperforms and outlasts a finger jointed Bar whose sole purpose is to save the manufacturer cost, not contribute to the archival value of artwork intended to last a millennium. As a manufacturer, Masterpiece® does its part to conserve as much wood as possible, and still provide a quality product that will out-perform any other in the marketplace.

Sustainably Managed Forests

We use lumber grown in the sustainable forests of the Oregon, Washington, and California, where thereÕs more standing timber today than last century! Our forests purify the air, provide oxygen, and reduce global warming. More trees are needed on this planet, not fewer. Therefore, we use lumber grown in responsibly managed forests, so future generations can benefit from our collective responsible actions today.

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.

26x37 is the Canvas Size Needed for this 18x29 Frame

Please note that you will need a canvas that is at least 8 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.

With deep family ties and a legacy spanning since 1965 in California, Masterpiece® has been the epitome of unmatched quality in Stretcher Bars across North America. Our commitment to pioneering excellence has crowned us as the forerunners in the world of professional fine-art canvases. Bolstered by our patented innovations, our products exude a caliber that's in a league of its own. One touch, and the unparalleled quality becomes palpable, leaving an indelible impression on your clients and all future admirers of your art.