70 Inch 3D Pro K3 Stretcher Bar 3-1/2" Deep #K3-70

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

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.

Forests need People, and People Need Forests

The concept of sustainability presupposes a comprehensive engagement of individuals in the art and science of forest stewardship, both in the present and for the well-being of generations to come. Humanity undoubtedly extracts wood from forests to supplement our needs, but they also play a crucial role in bestowing diligent care upon these ecosystems. This stewardship encompasses not only the responsible harvesting of forest resources but also extends to the safeguarding of clean water sources, the preservation of wildlife and their native habitats, and the mitigation of potential threats like erosion, fires, and diseases that could otherwise lead to untimely degradation of these precious woodlands.

Masterpiece® uses only lumber harvested from responsibly and sustainably managed timberlands.

Canvas Size Needed for this Stretcher Bar

Most artists will stretch the canvas and attach the staples or tacks onto the back side of the frame. Doing so allows you to paint on the edge and hang your art without needed a picture frame. Generally speaking, you should allow 10 Inches of canvas beyond the size of your frame.

For example, if you were to stretch a 70x90 frame size, which happens to be a 9:7 Portrait Proportion, your canvas should be about 10 x 80. This allows you ample room to stretch and attach the canvas on the back. Should you ever need to remove the canvas from the frame and re-attach it, it still serves that purpose too. Should you want to attach the canvas from the edge of the stretcher frame, then you can reduce the size of your canvas about 3/4" all the way around the frame.

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.

Vision is the true creative rhythm. ♦ Robert Delaunay

Robert Delaunay, a beacon of the Orphism art movement, held an intriguing perspective on art and the world around him. His assertion about vision being the very heartbeat of creativity throws light on how he approached his work. To him, seeing wasn't a mere passive act, but a dance between the mind and the world it perceives.

Having a vision is more than having an idea; it's about tapping into a flow, a cadence that guides our hand, mind, and heart. As we immerse ourselves in our craft, it is this rhythm, this unique pulse of our vision, that defines and elevates our creations. By truly seeing, by letting our perception resonate with our innermost feelings, we manifest art that is both deeply personal and universally compelling.

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Art is visual and ripe with meaning, so enjoy this quote and our interpretation of its meaning, plus an one-of-a-kind portrait we created of Robert Delaunay to make it all the more relevant. Pick up that brush and go!

Tight'n'Up™ Liquid Canvas Retensioner

One of our most celebrated products helps make your canvas tighter! Assembling Stretcher Bars and Stretching your own canvas can present some challenges. While your canvas may seem tightly stretched, the tension may vary from staple to staple creating lines of tension across the canvas in a grid like pattern. The trick is to maintain balanced tension across the canvas.

Tight'n'Up™ Liquid Canvas Re-Tensioner is a great way to redistribute the tension in a canvas across that grid-like pattern of tension as well as increase the tension on the entire canvas. While you can can add tension by keying-out the corners of the frame, it may produce an hour-glass effect by expanding the frame in the corners, and not the center.

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.