80x100 3D Pro 3.5" Deep K3 Stretcher Frame Kit

True 5:4 Photography Proportion - 80x100 Size

This magnificent 80x100 size is the ultimate grandfather to the ol' 8x10, being ten times that size!

The 5:4 aspect ratio is common to both art and portrait photography, as it creates a visually pleasing format for the human figure and face. The balanced compositional format can help to create a sense of symmetry and harmony in your artwork. The 5:4 ratio has a familiar "feel", as it was commonly used in early computer monitors. Additionally, you might consider trying some relatively unknown sizes in this same proportion that we call Lost Sizes As an artist, you get the best of both worlds, because you still get to use the same aesthetically appealing 5:4 format and use rare or novel sizes that help make your art stand-out.

Explore other sizes in this same 5:4 aspect ratio:

12x15 • 16x20 • 20x25 • 24x30 • 28x35 • 32x40 • 36x45 • 40x50 • 44x55 • 48x60 • 52x65 • 56x70 • 60x75 • 64x80 • 68x85 • 72x90 • 76x95 • 84x105 • 88x110 • 92x115 • 96x120

• Super strong 3D™ Pro K3™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
• For this 80x100 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.

Sustainable Forests Ensure More Wood for Communities

Using lumber from sustainably managed forests is not only the responsible thing to do, it's also a way to ensure that the wood products we rely on continue to be available in the future. By supporting sustainable forestry practices, we can help to ensure a steady supply of wood products while also protecting the environment and supporting local communities.

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.

90x110 is the Canvas Size Needed for this 80x100 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.

Masterpiece® is a family-owned business operating in California since 1965 and producing the finest Stretcher Bars in North America. We deliver the highest quality and highest performing products in the business. 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'll immediately recognize our impeccable qualityÑand more importantly, so will your clients and those who acquire your art

To work is to pray. ♦ John Singer Sargent

Sargent's artistry wasn't just a vocation; it was a spiritual endeavor. For him, every brushstroke was an act of devotion, every portrait a profound exploration of the human spirit. This deeply held belief that work is a form of prayer offers solace to artists like us, who often grapple with the challenges of our craft. In the hours of dedication and the quest for perfection, we find a sacred connection to our work, echoing Sargent's sentiment that in the act of creating, we are also engaging in a spiritual dialogue.

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As we honor the legacy of John Singer Sargent, we've created our own portrait as well as pass along these words of wisdom and our take on the message. Get to work on yours!