Description
71x91 K2™ Professional 3D Frame Kit • 2-1/2" Deep • 91:71 • K2K-7191
Our Masterpiece® 3D™ K2 Professional 2-1/2" Deep Stretcher Bar Kit is the ultimate museum quality solid-wood stretcher system. It's so unique, it earned us a Patent! All you need to do is select the frame size and you will receive everything you need to build a museum class Stretcher Bar Frame. We have 6105 sizes available in this and two other depths. Get Any Size You Want!
True 91:71 Custom Proportion - 71x91 Size
Explore other Masterpiece® products in this exact 71x91 size:

- Super strong 3D™ Pro K2™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
- For this 71x91 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

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
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.

79x99 is the Canvas Size Needed for this 71x91 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.

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.

There's nothing to match the wildness of life.
♦ Nicolas de Staël
Nicolas de Staël's perception of life's wild unpredictability not only encapsulates his outlook on existence but also mirrors his approach to art. The unpredictable nature of life, with its myriad of emotions, experiences, and challenges, is something we artists often attempt to capture on canvas, in sculpture, or through any medium we choose. Life, in its untamed splendor, offers a vast palette of experiences, and just like in our art, we try to navigate its unpredictable terrains.
De Staël's art was characterized by bold color choices, textured layers, and an ability to evoke profound emotions. Much like life, his works were both chaotic and harmonious, reflecting the tumultuous yet beautiful dance of existence. In understanding that there's nothing quite as untamed as life itself, we find an invitation to dive headfirst into our art, to embrace the unpredictable, and to let the rawness of our experiences shape our creations.
So, while life's wildness can often be daunting, it's this very essence that fuels our creative fires. It pushes us to dig deeper, to understand more, and to translate the untamed beauty of existence into our art. After all, if life is a wild adventure, then our art is the story we tell of that journey.
As we honor the legacy of Nicolas de Staël, 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!
Additional Details
- SKU:
- K2K-7191
- Canvas and Depth:
- 2.50 In. Frame Kit
- Width:
- 71 Inch
- Length:
- 91 Inch