When it comes to woodworking, the jointer and planer are two of the most important tools in a woodworker’s arsenal. Both machines play an essential role in preparing rough lumber for use in furniture making, cabinetry, flooring, and more.
A jointer is primarily used for flattening one face and squaring one edge of a board. This process is known as “jointing.” Jointing ensures that the board has a flat surface to rest on while being fed through other machines or worked with hand tools. A jointer accomplishes this by using rotating knives that shave off high points on the wood until it becomes even across its entire length.
On the other hand, a planer is used for thicknessing boards to uniform thicknesses throughout their length. The process of running lumber through a planer creates smooth surfaces on both faces of the board while reducing its thickness. Planers can also be used to create custom moldings or trim pieces from rough-sawn lumber.
While both machines may seem similar at first glance, they serve different purposes when working with rough-cut lumber. Understanding how each tool works will help you decide which machine best suits your needs when preparing wood for your projects.
In summary, a jointer prepares one face and one edge of rough-cut boards while creating perfectly flat surfaces for further processing. In contrast, a planer reduces board thickness uniformly throughout its length and produces consistently smooth surfaces on both faces simultaneously.
What are Jointers and Planers?
Jointers and planers are two essential woodworking tools that work together to create smooth, flat surfaces on lumber. Both machines are used primarily for preparing wood for further processing, such as joining or laminating. While they share some similarities in function, there are significant differences between the two tools.
The Jointer
A jointer is a machine used to flatten one face of a board while also squaring up one edge. It consists of a flat table with an adjustable cutting head mounted beneath it. The cutting head contains several knives that spin rapidly, allowing it to shave off small amounts of wood from the surface of the board as it passes over the cutterhead.
Most jointers have either a 6-inch or 8-inch wide cutting capacity, although larger models do exist for professional use. They can handle boards ranging in thickness from just a few millimeters up to around six inches thick.
The Planer
A planer is designed to take rough lumber and transform it into perfectly parallel boards with uniform thickness throughout their length. Essentially, its primary purpose is to remove large amounts of material quickly and accurately by passing each roughcut board through its rollers while rotating its blades at high speeds.
Much like jointers, planers typically come in widths ranging from 6-12 inches but can be much wider depending on intended usage (e.g., industrial-level production). They can process boards up to four inches thick or more and leave them smoother than when they entered the machine.
Differences Between Jointers And Planers
- Cutting action: A jointer cuts across only one axis (the width), whereas a planer cuts across both axes (width and thickness) at the same time.
- Surface finish: Jointers leave a smooth surface with no visible tool marks or roughness, while planers create a smoother but slightly rougher surface with minimal knife marks.
- Capabilities: Jointers are used to flatten one face and square one edge of boards, whereas planers are used to remove thickness from a board and make it uniform in size throughout its length.
In conclusion, jointers and planers are two powerful woodworking tools that go hand-in-hand. Both machines offer unique capabilities designed for specific tasks that complement each other when preparing wood for further processing. Understanding the differences between these tools is essential when deciding which machine is best suited for your project’s requirements.
Differences Between Jointers and Planers
Jointers and planers are two common woodworking tools that are often confused for each other. While both of these tools are used to shape wood, they have different functions, features, and applications. Here are some key differences between jointer vs planer:
Functionality
A jointer is primarily used to create a smooth, flat surface on the face of a board or edge. It removes any warping or twisting in the wood by taking off thin shavings along its length. This creates a straight edge or face that can be joined with other boards without gaps.
A planer is mainly used to reduce thickness from an already flat surface. It planes down rough lumber into uniform thickness while also making it smooth and even.
Cutting Depth
The cutting depth of these two tools is significantly different. A typical benchtop jointer usually has a maximum cutting depth of ⅛ inch, whereas most planers can handle cuts up to ¼ inch deep per pass.
Cutter Head Configuration
The cutter head configuration on these two machines is also different. Jointers typically have helical blades mounted around cylindrical cutterheads which rotate at high speeds (often as fast as 10K RPM). Planers often make use of larger blades mounted onto rotating drums that run slower than those found on jointers.
Size & Cost
In terms of size and cost comparison between joiner vs planner:
– Jointers tend to be smaller in size than planing machines
– In general, however, they’re less expensive than their planning counterparts since they lack many features needed for dimensioning such as automated feed rollers.
Planing machines come with larger tables that make it easier to handle larger pieces of wood. They are also more expensive than jointers due to their bigger size and complex design.
Finished Product
The finished product after using a jointer is usually an edge or face with perfectly flat lines and no rough spots. With planing machines, the finished product will be a uniform thickness throughout the entire length of the board being worked on.
In conclusion, while both tools are used for woodworking, they have different functions and features. Jointers help flatten boards in preparation for joining them together while planers help reduce lumber thickness uniformly across its surface. The differences between joiner vs planner may seem small but can have significant effects on your project’s success depending on what you need to achieve!
Advantages and Disadvantages of Jointers and Planers
Jointers and planers are both woodworking tools designed to smooth, flatten, and shape wood. While they share some similarities, such as their ability to remove material from a piece of wood, they have distinct differences in terms of their functions, features, advantages, disadvantages.
Jointer Advantages:
- Straightening Capability: A jointer’s primary function is to straighten the edges of boards. It can create perfectly flat surfaces on one or two sides at a time by removing high spots.
- Clean Cutting Action: The cutting head on the jointer is configured with knives that make small cuts that produce clean results without any tear-out or chip out.
- Precision Work: The fence on a jointer allows you to set precise angles for bevels or chamfers while keeping them consistent across many pieces.
Jointer Disadvantages:
- Limited Capacity:A jointer cannot handle wide boards because it only has one stationary blade. That means you’ll need another tool like a table saw or circular saw if your board exceeds maximum width capacity
- Dangerous: The blades on the cutterhead spin at high speeds making them potentially dangerous. If not handled properly protective gear must be worn for safety purposes when operating this machine.
Planer Advantages:
- Ease Of Use: You can feed rough lumber into the planer and end up with perfectly smooth boards in no time compared to using hand-held sanding equipment which can be time-consuming and inconsistent.
- Consistent Thickness: A planer can produce boards that are of uniform thicknesses which is perfect for furniture making. Planers have gauges, so you can make sure every board is the same thickness down to a thousandth of an inch.
- Safety: The cutter head on the planer is enclosed in a housing to prevent accidental injuries from occurring when using this tool.
Planer Disadvantages:
- Inability To Straighten Boards:A planer cannot straighten a board like a jointer does. If rough lumber has any bow or twist, it will still have those defects after being passed through the machine. Therefore, you’ll need to use your jointer before moving onto your planing process
- Limited Capacity: Planers only allow materials narrower than their specified maximum width capacity, anything outside this limit would require another tool for resolution.
In conclusion, both tools provide unique advantages and disadvantages depending on what woodworking project you’re working on. It’s important to carefully consider these factors when choosing between the two machines since each one has its own strengths and weaknesses that could suit different woodworkers’ needs.
Which One to Choose: Factors to Consider
When deciding between a jointer and planer, there are several factors that should be considered. These include the purpose of the tool, the size of the wood being worked with, and the budget for purchasing.
One important factor is the purpose of the tool. A jointer is primarily used for creating flat edges on boards before joining them together. A planer, on the other hand, is used for reducing thickness and creating uniform surfaces on lumber.
Another consideration is the size of wood being worked with. Jointers are typically better suited for smaller boards or pieces while planers can handle larger pieces more efficiently.
Budget also plays a role in choosing between a jointer and planer. Jointers tend to be less expensive than planers but may not be as versatile in terms of their applications.
It’s also worth considering if space constraints exist within your workshop – some shop owners may only have room for one machine making versatility an even more important factor to consider when deciding which one will work best in your situation.
In summary, both jointers and planers serve essential functions when it comes to woodworking projects; choosing which one makes sense comes down to understanding what type of projects you’ll undertake most often – including their required sizes – along with any limitations like budget or available workspace so that you can make an informed decision about which option will meet both your needs as well as expectations moving forward!
Conclusion
Both jointers and planers are essential tools in a woodworker’s shop. They serve different purposes but complement each other well. Jointers are used to flatten one side of a board, while planers are used to make the opposite side parallel and reduce its thickness.
If you’re working on rough lumber or need to prepare boards for glue-ups, then a jointer is an absolute must-have tool. It ensures that the surface is flat and free from any defects, which will result in better glue joints and overall smoothness of your finished product.
A planer is also important as it can quickly transform thick boards into thinner ones with consistent thickness throughout their length. This makes them ideal for various woodworking projects like cabinets, shelves, tables, or flooring.
When deciding between the two tools, consider your specific needs and preferences before making your purchase decision. If you have limited space or budget constraints, then opting for a combination machine that combines both functions might be a smarter choice.
In summary:
- A jointer is used to flatten one side of rough lumber;
- A planer is used to reduce the thickness of boards;
- Both machines complement each other well;
- Consider your needs before choosing between them;
- If limited space or budget-constrained consider combo-machines instead.

Ben is one of the founders and editor of Structured Living HUB. His interests are automotive and architecture. For over 10 years he worked as a modular house contractor in the United States.