Description
12x103 K2™ Professional 3D Frame Kit • 2-1/2" Deep • 103:12 • K2K-12103
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 103:12 Custom Proportion - 12x103 Size
Explore other Masterpiece® products in this exact 12x103 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 12x103 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

Finger Jointed Wood is not meant for Stretcher Bars
Solid wood makes the most dependable Stretcher Bar, because one homogeneous wood member is going to behave similarly across the entire length of the Bar. Whereas, with finger-jointed wood is made-up of multiple pieces of wood, sometimes on the actual joint itself, presenting multiple points of failure which no one can control.
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 add or reduce value to your final painting. The fact is, you don't want problems, and finger joints only increase that risk of the wood falling apart in the future.
The glue used to bind finger joints is a water based adhesive and when that wood is exposed to high humidity environments, particularly with exterior walls, the glue joints can give-up. 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.

Our Ecosystem Depends on Healthy Forests
Forests play a vital role in our planet's ecosystem. They absorb carbon dioxide, filter air and water, and provide habitat for countless species of plants and animals. By using sustainably sourced lumber, we can help to protect these important ecosystems and ensure that they continue to provide these valuable services for generations to come.

20x111 is the Canvas Size Needed for this 12x103 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.

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

I do have a passion for the light in a bathing resort.
♦ Claude Monet
When one thinks of Claude Monet, the mind often drifts to vivid landscapes, water lilies, and the iconic haystacks, all bathed in enchanting light. Monet's fascination with light wasn't just limited to these familiar scenes. His statement about the luminosity in a bathing resort underlines his lifelong pursuit: to capture the ephemeral and transformative quality of light.
What might it be about the light at a bathing resort that captivated Monet? Perhaps it's the way light reflects off the shimmering water, or how it casts elongated shadows on the sand as the sun sets, or even the soft glow it imparts on sunbathers. For artists, such places offer a dynamic interplay of natural light with elements like water, human figures, and the ever-changing skies. It challenges us to perceive and translate those fleeting moments of brilliance onto our canvas. Through his works, Monet invites us to view the world as he did, to find beauty in the mundane, and to appreciate the myriad ways light enriches our surroundings.
We've curated this inspirational quote and our take on the message, plus a unique portrait we created of Claude Monet, celebrating the timeless ever-evolving act of creation. Go create your own masterpiece!
Additional Details
- SKU:
- K2K-12103
- Canvas and Depth:
- 2.50 In. Frame Kit
- Width:
- 12 Inch
- Length:
- 103 Inch