How to Frame a Paint by Numbers Canvas with a DIY Wooden Frame
If your paint by numbers kit includes a DIY wooden frame, the canvas arrives rolled together with four wooden stretcher bars for you to assemble at home.
The process is simple: build the wooden frame, centre the numbered canvas, stretch it evenly over the stretcher bars and secure it at the back. Once assembled, you have a firm painting surface that can also be hung directly on the wall when your artwork is finished.
This guide explains how to frame a paint by numbers canvas step by step, including how to assemble the wooden frame, position and stretch the canvas, fold the corners and hang the finished painting.
Quick Answer: How Do You Frame a Paint by Numbers Canvas?
To frame a paint by numbers canvas, assemble the four wooden stretcher bars, place the canvas face down, centre the frame over the printed area, secure opposite sides gradually with thumbtacks, then fold and fasten all four corners. The finished canvas should feel smooth, firm and evenly tensioned.
What You Need
- Four wooden stretcher bars
- Your paint by numbers canvas
- Flat-head thumbtacks
- A clean, flat work surface
Paintarthub DIY Frame Kits are designed to be assembled without a staple gun. The wooden bars have pre-cut corner joints, so no woodworking or special tools are required.
If your kit did not originally include a frame, you can also add a DIY frame for paint by numbers separately.
How to Assemble a DIY Paint by Numbers Frame
Step 1: Lay Out the Wooden Stretcher Bars
Place the four wooden bars on a clean, flat surface.
Depending on the dimensions of your canvas, you should have two matching longer bars and two matching shorter bars. Arrange them into the rectangular shape of the finished frame before connecting the corners.
Step 2: Connect the Four Corners
Take two neighbouring wooden bars and slide their corner joints together.
Continue until all four pieces form a complete rectangular frame. Push each joint firmly into place. A corner that is only partly connected can cause the finished frame to sit unevenly.
Step 3: Check That the Frame Is Square
Before placing the canvas on the frame, inspect all four corners. The opposite sides should be parallel and the wooden frame should form an even rectangle.
If one corner is noticeably out of alignment, adjust the bars now. It is much easier to correct the frame before the canvas has been attached.
Step 4: Position and Centre the Canvas
Place the paint by numbers canvas face down on a clean, flat surface.
Position the assembled wooden frame on the back of the canvas and check that the printed painting area is centred inside it.
Look at all four edges before adding any thumbtacks. If the design starts off-centre, stretching the canvas later can make the misalignment more noticeable.
How to Stretch a Paint by Numbers Canvas onto the Frame
Once the frame and canvas are correctly positioned, you can begin securing the canvas. The goal is a smooth, firm surface with even tension across all four sides.
Step 5: Secure the First Side
Fold the excess canvas over one wooden stretcher bar.
Start close to the centre of the side and secure the canvas to the back of the frame using a flat-head thumbtack.
Beginning in the centre rather than at the corners makes it easier to control the tension and keep the canvas aligned.
Step 6: Secure the Opposite Side
Move to the opposite side of the wooden frame.
Pull the canvas gently until it feels smooth and firm, then fold it over the stretcher bar and secure it with another thumbtack.
Working between opposite sides helps distribute the tension evenly and reduces the chance of pulling the printed design out of position.
Step 7: Secure the Remaining Sides
Continue adding thumbtacks while alternating between opposite sides.
Work gradually from the centre towards the corners, keeping the tension even as you go.
Check regularly that:
- The printed design remains centred.
- The canvas stays smooth.
- There are no obvious wrinkles or loose areas.
Step 8: Fold and Secure the Corners
Once the main sides are secure, fold the remaining canvas neatly around each corner towards the back of the frame.
Keep each fold as flat as possible so it does not create a visible bump along the front edge, then secure the folded canvas with another thumbtack.
Turn the canvas over when finished. The printed design should now sit straight on the frame and the canvas should feel smooth and evenly stretched.
How Tight Should a Paint by Numbers Canvas Be?
A paint by numbers canvas should be firm and smooth, but not stretched as tightly as possible. The most important thing is even tension across all four sides.
Too little tension can leave the canvas sagging or wrinkled. Too much tension, especially on only one side, can distort the printed design or pull the wooden frame out of square.
If you notice a wrinkle or loose area, remove the nearest thumbtack, gently adjust the canvas and secure it again.
Should You Frame a Paint by Numbers Canvas Before or After Painting?
For a DIY wooden frame, we recommend stretching the canvas before painting.
Painting on an already mounted canvas gives you:
- A flatter and firmer painting surface.
- Less canvas movement while using the brush.
- No need to stretch the finished artwork later.
- A canvas that is already prepared for display.
Already finished your painting? You can still mount it afterwards. Make sure the acrylic paint is completely dry before stretching the canvas, and avoid sharply folding areas with heavier layers of paint.
How to Hang a Paint by Numbers Canvas
Once your painting is complete and fully dry, the wooden stretcher frame can be hung directly on the wall.
You do not need an additional decorative picture frame unless you prefer that style.
Hanging Step 1: Choose the Position
Hold the completed painting against the wall and decide where you want it to sit.
Check the height and general alignment before installing the wall hardware.
Hanging Step 2: Install the Wall Fixings
Install the wall hooks in the chosen positions.
The correct fixing method depends on your wall type. Plasterboard, masonry, timber and other wall surfaces may require different hardware, so use suitable wall fixings where necessary.
Hanging Step 3: Attach the D-Rings
Use the supplied screws to attach the two D-rings to the back of the wooden stretcher frame.
Position them at the same height on both sides so the finished painting hangs evenly.
Hanging Step 4: Hang and Level the Painting
Carefully place the D-rings onto the wall hooks.
Check that the painting is level and make any small adjustments before leaving the artwork in its final position.
If you want to upgrade your painting setup or need extra supplies, browse our painting tools and accessories, including premium brushes, magnifying lamps, easels, extra paint pots and other useful painting supplies.
DIY Frame vs Rolled Canvas vs Stretched Canvas
Paint by numbers kits are commonly available in three canvas formats. The main difference is whether a wooden stretcher frame is included and whether you need to assemble it yourself.
| Kit Format | Wooden Frame | Assembly Required | Best For |
|---|---|---|---|
| Rolled Canvas | No | No | Maximum flexibility |
| DIY Frame | Yes | Yes | Mounting the canvas yourself |
| Stretched Canvas | Yes | No | Ready to paint immediately |
A DIY Frame Kit includes an unassembled wooden stretcher frame that you build and attach to the canvas yourself.
A Stretched Canvas Kit arrives with the canvas already mounted on the wooden frame.
A Rolled Canvas Kit does not include a wooden frame, giving you more flexibility if you plan to display the finished painting another way.
Common DIY Frame Mistakes to Avoid
Securing the Canvas Before Checking the Alignment
Make sure the printed painting area is centred before fixing the canvas firmly to the frame.
Using Uneven or Excessive Tension
Keep the tension even as you work between opposite sides. The canvas should be smooth and firm rather than stretched as tightly as possible.
Starting at the Corners
Secure the centre of each side first and work gradually towards the corners. Leave the final corner folds until the main canvas tension has been established.
Frequently Asked Questions
Do I need a staple gun to frame a paint by numbers canvas?
No. If your DIY frame kit includes flat-head thumbtacks, you can use them to secure the canvas to the wooden stretcher bars without a staple gun.
Should I stretch my paint by numbers canvas before painting?
Yes. For a DIY wooden frame, we recommend stretching the canvas before painting. It gives you a flatter, firmer surface and means the finished artwork is already mounted for display.
Can I frame a paint by numbers canvas after painting?
Yes. Allow the acrylic paint to dry completely first, then stretch the canvas gradually and avoid sharply bending heavily painted areas.
How tight should a paint by numbers canvas be?
The canvas should feel smooth and firm without visible sagging or wrinkles. Even tension across all four sides is more important than pulling the canvas as tightly as possible.
How do I remove wrinkles when stretching the canvas?
Remove the thumbtack closest to the loose area, gently adjust the canvas and secure it again. Work between opposite sides so the tension remains even.
What should I do if my paint by numbers canvas is not centred?
Remove the nearest thumbtacks, reposition the canvas and secure it again. Correcting the alignment is better than trying to compensate by pulling another side more tightly.
Can I hang a paint by numbers canvas without an outer frame?
Yes. Once the canvas is stretched over a wooden stretcher frame, it can be hung directly on the wall. A decorative outer frame is optional.
