Description
38x55 K2™ Professional 3D Frame Kit • 2-1/2" Deep • 55:38 • K2K-3855
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 55:38 Custom Proportion - 38x55 Size
Consider one other size in the same 55:38 proportion:
Explore other Masterpiece® products in this exact 38x55 size:
- Stretched Acrylic Primed Cotton Canvas : Tahoe™
- Elite™ B2 Frame Kit • 3D™ K3.5 Frame Kit • 3D™ K3.5 Frame Kit

- Super strong 3D™ Pro K2™ Stretcher Bar is a very popular among contemporary artists whose painting will be displayed without a frame.
- For this 38x55 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.

Sustainably Managed Forests Inhale and Exhale
The world's forests are essential to human survival. Forests inhale carbon dioxide for the earth, and exhale oxygen essential for life. When we speak of the sustainable forest strategy of ensuring that more timber will exist in the same forest land than exists today, this is the only viable plan for the future of humanity. For this reason, we use only lumber from the sustainable forests of Oregon, Washington, and California, where thereÕs more standing timber today than last century!
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.

46x63 is the Canvas Size Needed for this 38x55 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.

We live in a rainbow of chaos.
♦ Paul Cézanne
A post-impressionist painter who significantly influenced modern art, Paul Cézanne often contemplated the balance between order and disorder in his works. Living in a time of great shifts in artistic representation, Cézanne was a bridge between the fading artistic styles of the old world and the emerging bravado of the new. His canvases, characterized by their structural experimentation and innovative use of color, often revealed the tension between the known and the unknown, the predictable and the unexpected.
Every artist knows that the creative process is as tumultuous as it is enlightening. We constantly negotiate between our inner world of emotions, thoughts, and aspirations, and the external world with its myriad inspirations and challenges. And just like the colors of a rainbow that emerge from the interplay of light and rain, beauty often arises from this very chaos. As artists, we harness this chaos, blending our experiences and visions to produce works that speak to both our shared humanity and our distinct individuality. In recognizing the rainbow of chaos around us, we can embrace the full spectrum of our experiences, letting them inform, challenge, and ultimately enhance our creations.
We hope you will be inspired by the wisdom, and our interpretation thereof, of Paul Cézanne, plus we made this unique little portrait to begin the creative process. Time to start your creative process!
Additional Details
- SKU:
- K2K-3855
- Canvas and Depth:
- 2.50 In. Frame Kit
- Width:
- 38 Inch
- Length:
- 55 Inch