What is Wood Picture Frame Moulding
Wood Picture Frame Moulding is the important molding material for producing picture frame, oil paint picture frame, glass frame, certificate frame, and architectural frame, etc. It not only determines the looks and styles of frame, but also has the role of fixing glass, core of picture and background plate. So it has a strong requirement of high precision sizes, evenness profile and stable length.
According to different market over the world, wood picture frame molding can be designed out to various up to hundreds of different decorative profile sections such as:
- Classic Profile
- Modern Profile
- Round Profile
- Ogee Profile
- Bead Profile
- Multi-Step Profile
All of these complex sections are made by four side wood moulder planer machine equipping with special profile knives under one pass time to form instead of end period engraving.


Main Applications of Wood Picture Frame Moulding

Wood Picture Frame Moulding is not only widely used in home made decorative, but also fit and good at business and art fields.
Such as:
- Photo Frames
- Painting Frames
- Artwork Frames
- Mirror Frames
- Certificate Frames
- Hotel Decorative Picture Frames
- Museum Exhibition Picture Frames
- High-End Furniture Profile Frames
In recently years, with the rapid of DIY homemade furniture and artist market, wood picture frame moulding has became the top and most important product for profile decoratives.
Wood Picture Frame Moulding Common Used Materials

Different types of picture frames will use different kinds of wood.
Pine (pine wood)
Economical in price and easy to process.
Applicable to:
Large-scale export
Painted picture frames
Home decoration products
Poplar (poplar wood)
The texture is uniform.
Suitable for:
White spray paint
UV coating
Oak (oak wood)
It is made of high-end materials.
Feature:
Natural texture is obvious
High strength
High-end artistic picture frame
Maple (furniture wood)
Often used for:
Modern photo frame
Furniture accessory products
Walnut (Hickory)
The natural color is very beautiful.
Most are treated with transparent wood wax oil or varnish.
Wood Picture Frame Moulding Whole Production Line


Step 1: Raw Wood Preparation
The raw materials can be:
Logs (Raw timber)
Lumber (Sawn timber)
Finger Joint Lumber
Large enterprises usually purchase pre-sawn boards and then carry out subsequent processing.


Finger Joint Machine 202 1200×960

Step 2: Wood Drying
Drying is the key to ensuring the stability of the photo frame.
If the moisture content of the wood is too high, problems such as warping or cracking are likely to occur later.
Cracking
Curving Deformation
Joint cracking
Most indoor decorative wood products undergo kiln drying treatment to achieve the moisture content suitable for processing.
Step 3: Trimming and Measuring (Cutting & Sizing)
The dried wood needs to be processed according to the product dimensions.
Common equipment includes:
Cross Cut Saw (Cutting Saw)
CNC Panel Saw (CNC Panel Saw)
This process mainly ensures:
Uniform length
Consistent width
Stable continuous feeding afterwards
Four Side Planer Moulder Machine

Step 4: Finger Jointing and Lamination
For materials such as pine and poplar, in order to increase the utilization rate of the wood, many factories adopt the finger-jointing technique.
Main objective:
Remove knots
Remove cracks
Extend the length of the material
Improve dimensional stability
Subsequently, the boards are assembled or integrated according to the product specifications, resulting in wood that is suitable for continuous processing.
Step 5: Four-sided Planing Molding
This is the most crucial step in the entire production process.
The four-sided wood planer machine can complete the task in one go:
Four-sided Thickness Planing
Four-sided Width Sizing
Decorative Profile
Rabbet
Chamfer
Grooving
Complex section processing can be completed without the need for frequent machine changes, significantly enhancing production efficiency and dimensional consistency. The modern four-sided planer adopts multi-tool axes for continuous processing from top to bottom and left to right, allowing the four-sided processing and profile shaping to be completed with a single feed.
Recommend Products in Elasn
Four Side Planer Moulder Machine


Picture Frame Moulding – Why is Rabbet (the groove at the back) necessary?
The biggest difference from Crown Moulding lies in:
The back of the Picture Frame Moulding usually requires the processing of a Rabbet (back groove).
This structure is used for installation:
- Glass (glass)
- Picture (photo or picture core)
- Back Board (back panel)
In industrial production, the Rabbet is usually formed through a single cutting operation by the tool during the four-sided planing stage, rather than being cut separately later. This approach can enhance efficiency and ensure consistent depth of the slot.
Step 6: Sanding
After the four-sided planing is completed, the wood strips are sent to the wide belt sanding machine.
Main function:
Remove knife marks
Improve smoothness
Provide a uniform surface for subsequent spraying
For high-end photo frame products, multiple rounds of fine sanding may also be carried out.
Recommend Product: ELASN Wide Belt Sander.
Step 7: Surface Coating (Painting & Finishing)
According to the product positioning, different surface treatment methods can be adopted:
- Wood wax oil Varnish
- NC painting
- PU painting
- UV spraying
- Water-based paint
For the Picture Frame Moulding products intended for export to the European and American markets, the automatic spraying production line can significantly enhance the consistency of the coating and increase production efficiency.
Recommend Product ELASN Spray Painting Machine.
Step 8: 45° beveling and frame assembly
After the surface treatment is completed, the Picture Frame Moulding will be cut at a 45-degree angle according to the order size.
Subsequently completed:
- Gluing
- V Nail connection
- Corner Clamp fixation
- Installing glass
- Installing the picture core
- Installing the back panel Packaging
This step ultimately results in a complete wooden photo frame.
Why choose the four-sided wood planer machine to produce Wood Picture Frame Moulding?

Compared with traditional processing methods, the four-sided wood planer machine has obvious advantages:
- Complete the processing of four sides with thickness and width determination, as well as complex surface machining in one go.
- It can simultaneously process decorative contours and Rabbet back grooves.
- Changing the cutting tools allows for the production of different style picture frame lines.
- The dimensions are highly consistent, suitable for continuous batch production.
- It can process various types of wood such as Pine, Oak, Maple, Walnut, and Poplar.
- It is easy to integrate with automated production lines for sanding, painting, packaging, etc.
For Picture Frame Factory, Wood Profile Manufacturer and Decorative Moulding Factory, the four-sided planer woodworking machine is the core equipment for achieving large-scale production of high-quality frame lines.
ELASN Wood Picture Frame Moulding Solution

ELASN offers a complete solution for the production of wooden picture frame lines, including:
- Four-Side Planer Moulder
- CNC Panel Saw
- Wide Belt Sander
- Automatic Spray Painting Machine
By combining these devices, a complete Picture Frame Moulding production line can be constructed, covering the processes from wood preparation, profile processing, surface treatment to finished product output. This provides stable and efficient industrial processing solutions for furniture factories, wood line factories and frame manufacturing enterprises.






