How to Use a Table Saw as a Jointer: 2 Methods, Best Blades, and Honest Limitations

The table saw is already in your shop. The jointer is not. Whether the reason is budget, space, or a glue-up project due this weekend, using a table saw as a jointer is a practical and proven technique. This guide covers two setup methods, the blade choice that determines edge quality, and an honest look at where this approach works well and where it falls short.

What a Table Saw Can and Cannot Do as a Jointer

Before setting up either method, it is worth being clear about what you are actually trying to accomplish and where the table saw approach has firm limits. Many woodworkers assume the table saw is a complete jointer substitute. It is not. Understanding the boundary up front saves time and frustration.

The single most important row is face jointing. A table saw cannot flatten a cupped, bowed, or twisted face. The board must already have one flat face before either method below will produce a square edge. If your stock is rough-sawn with no flat reference, you need a planer sled or router sled to handle the face before using the table saw for the edge. With pre-surfaced lumber where the faces are already flat, the table saw handles edge jointing well across both methods described here.

Method 1: Shop-Made Jig (Most Reliable)

The jig method mirrors the mechanical principle of a power jointer. An infeed section and an outfeed section are offset by the blade kerf width, so the board registers on the shorter infeed side, passes the blade, and exits on the aligned outfeed side. Once the jig is built and dialed in, it produces consistent, repeatable results with minimal per-session setup time.

Materials and Dimensions for the Jig

Build the jig from 3/4-inch melamine, MDF, or plywood. Cut two pieces: a base measuring 4 inches wide by 48 inches long, and a vertical piece 3 inches wide by 48 inches long. Fasten them together along their length to form an L-shape. Melamine works particularly well because chips and dust do not adhere to the surface. The 48-inch length provides support for boards up to roughly 4 feet; for longer stock, extend the jig to match your typical board length.

Mark a pencil line across the jig face at the midpoint, approximately 24 inches from either end. This line marks where you will stop the relief cut in the next step.

How to Cut the Offset Relief

With the saw unplugged, move the rip fence to the left side of the blade. Position the fence so that the outside face of a blade tooth aligns exactly with the right edge of the jig. The easiest way to confirm this is to run a finger along the tooth face and the jig edge simultaneously until they feel flush. Once aligned, add a featherboard to hold the jig firmly against the fence during the cut.

Plug in the saw, feed the jig slowly with the vertical face against the fence, and cut until you reach the pencil line at the midpoint. Stop and turn off the saw. The relief cut creates the offset: the infeed half of the jig is now one blade-kerf width shorter than the outfeed half. That offset is the depth of material removed from each board edge on every pass.

Setting Up the Jig on the Rip Fence

Move the rip fence back to the right side of the blade. Clamp the jig to the fence with the relief cut toward the blade and the outfeed section at the back. Adjust the fence position until the outfeed face of the jig aligns with the outside of a blade tooth at top-dead-center. The blade should spin freely without touching the jig. Make small fence adjustments until this is correct, then lock the fence.

Making the Cut

Feed the board with the flat face down and the edge to be jointed against the jig. Apply consistent lateral pressure against the jig throughout the pass. As the board clears the blade and contacts the outfeed section of the jig, shift hand pressure forward rather than pushing from behind. Use a push stick for the last few inches of the cut. A featherboard on the infeed side keeps the board tight against the jig and improves both safety and consistency.

Method 2: Rip Fence Shim (Quickest Setup)

The shim method achieves the same offset without building a dedicated jig. Instead of a machined relief cut, a shim of consistent thickness is applied to the infeed half of the auxiliary fence, creating the same infeed-to-outfeed offset. This method is faster to set up when you only need to joint a few boards and do not want to build a jig first.

How the Shim Method Works

Attach an auxiliary wooden fence to the rip fence, at least 36 inches long and tall enough to support the board edge fully. Apply the shim material to the infeed half only, from the front of the fence to approximately the centerline of the blade. The outfeed half of the auxiliary fence has no shim and sits flush. Adjust the rip fence so that the outfeed face of the auxiliary fence aligns with the outside of a blade tooth at top-dead-center. The shim on the infeed side positions the board slightly closer to the blade, so the blade removes the shim's thickness from the edge on each pass.

Choosing Shim Thickness

The shim thickness determines the depth of cut per pass, just as infeed table height sets depth of cut on a power jointer. A single layer of plastic laminate, approximately 1/32 inch, removes a light skim and is appropriate for boards that are nearly straight. A playing card thickness, approximately 1/64 inch, is useful for a finish pass before gluing. For boards with more significant deviation, 1/16 inch shim thickness removes material faster but demands more attention to feed rate and blade condition.

When to Use This Method Instead of the Jig

The shim method works best for occasional edge jointing of a small number of boards where building a dedicated jig is not worth the time investment. It is also practical when you need to joint stock that is too short or narrow for the jig to support safely, using a featherboard and push blocks instead of the jig's extended fence surface. For regular edge jointing work, the jig method produces more consistent results and is faster per board once the jig exists.

Which Blade Gives the Best Results?

Blade selection has a larger effect on edge quality than the setup method. A poor blade produces a rough, burned edge regardless of how well the jig is aligned. A quality blade on a well-tuned saw produces an edge that needs no further preparation before gluing. The table below covers the blade types most relevant to edge jointing.

For woodworkers who do occasional edge jointing as part of broader shop work, a quality 40-tooth ATB combination blade produces edges good enough for most furniture and cabinet glue-ups without a dedicated blade. For anyone who regularly joints boards for edge-glued panels, a glue-line rip blade is worth having. The Freud Glue Line Rip is the most frequently referenced option in woodworking communities for this specific application. Thin-kerf blades have the added advantage of removing less material per pass, which is preferable on a method that already takes shallow cuts.

Avoid standard flat-top-grind rip blades for this application. The flat top leaves a ridged surface that is visible under glue and will produce gaps in edge joints under normal clamp pressure.

Is the Edge Good Enough for Gluing?

This is the question that matters most and the one most guides avoid answering directly. The honest answer depends on what you are gluing and how precise the fit needs to be.

For Furniture and Cabinet Work

A 40-tooth ATB combination blade or better, on a properly aligned table saw with a well-set jig, produces edges that are glue-ready for furniture panels, cabinet sides, drawer parts, and most tabletop glue-ups. The surface will show very fine saw marks under strong raking light, but these do not affect joint strength or long-term appearance once glue is applied and dried. Experienced woodworkers have been gluing up panels off the table saw for decades with reliable results.

For Instrument Tops and Precision Glue-Ups

For luthiers or woodworkers building instrument tops, guitar backs, or any application where the glue line must be invisible and the joint must be airtight along its entire length, the table saw method does not reliably meet the standard. Even a high-quality blade leaves a slightly faceted surface from the circular cutting arc. For these applications, a hand plane finish on the jointed edge is the standard approach before assembly.

The Candle Test

Hold the two boards you intend to glue with their jointed edges together and lift the assembly in front of a light source. If light passes through the joint at any point, the edges are not in full contact and will produce a weak or visible glue line. This test takes ten seconds and immediately tells you whether the table saw edge is ready or needs another pass. A glue-line rip blade and careful technique should pass this test routinely. A standard rip blade rarely will.

Safety Considerations for Table Saw Edge Jointing

The jig and shim methods change the geometry of how the board interacts with the blade compared to a standard rip cut. This creates a different set of safety considerations that are worth understanding specifically, not just applying general table saw safety rules.

Why the Jig Setup Changes Your Kickback Risk

In a standard rip cut, the board is held flat against the table and the fence keeps it parallel to the blade. In the jig setup, the infeed side of the fence is set back from the blade face, which means the board is not in contact with a full-length fence from start to finish. As the board transitions from the infeed to the outfeed section, it briefly has less lateral support. Feed steadily and maintain consistent pressure during this transition. A featherboard on the infeed side provides the lateral holding force that the fence gap removes.

Board Prep Requirements: Flat Face First

Running a board with a cupped or twisted face through either method does not produce a square edge. The face against the table saw surface must be flat. If it is not, the board will rock on the table during the cut, producing an edge that is bowed or twisted relative to the face. This is also a safety issue: a board that rocks on the table is unpredictable under the blade. Always confirm that the reference face is flat before attempting edge jointing on the table saw.

Featherboard Placement

Place a featherboard on the infeed side of the blade, bearing against the face of the board. The featherboard holds the board firmly against the jig throughout the cut and compensates for the gap at the blade transition. Do not place a featherboard on the outfeed side, as this can trap the board and cause binding. One featherboard on the infeed, plus a push stick for the final few inches, covers the critical safety requirements of this setup.

See more: How to Avoid Kickback and Upgrade to a Spiral Cutterhead

When to Stop the Workaround and Get a Jointer

The table saw methods described here are effective for edge jointing pre-surfaced stock. They are a genuine solution, not a stopgap. But there is a clear threshold at which the time and accuracy cost of the workaround exceeds the cost of a dedicated machine.

If your work involves rough-sawn lumber that needs face flattening before edge work, the table saw cannot handle the first step. If you mill boards regularly for multiple projects per month, setting up a jig before every session adds up. If you need to joint stock wider than your blade height, neither method can help. And if you consistently find that your glue-ups have visible lines or small gaps despite careful technique, the table saw method has reached its accuracy ceiling for your work.

At that point, a 6-inch entry-level jointer and a planer cover the full milling sequence that neither table saw nor router table can replicate on their own.

See more: How to Joint Wood Without a Jointer: 5 Methods That Actually Work

If You Have a Jointer: The Cutterhead Makes the Difference

For woodworkers who already own a jointer, the quality of edges and faces coming off the machine depends less on technique than on the condition and design of the cutterhead. A jointer with a worn straight-knife cutterhead produces tearout and surface waves that the table saw jig method cannot match on difficult grain. A jointer with a spiral cutterhead produces results that leave the table saw method firmly behind.

Spiral cutterheads use rows of small carbide inserts arranged in a helical pattern. Each insert shears at a slight angle rather than striking across the full board width simultaneously. The result is significantly less tearout on figured or reversing grain, a noticeably quieter machine, and carbide inserts that last far longer than high-speed steel knives before needing replacement. When an insert dulls, it rotates 90 degrees to expose a fresh cutting edge rather than requiring a full knife-change procedure.

Sheartak spiral cutterheads are direct-fit replacements for most major jointer brands including DeWalt, Delta, Powermatic, Grizzly, Jet, and a wide range of European machines. For a mechanically sound jointer producing subpar surfaces, a cutterhead upgrade delivers an immediate and measurable improvement.

See more: What Does a Jointer Do? The Complete Guide for Woodworkers

Explore Sheartak's spiral cutterheads for jointers: Spiral Cutterheads Collection

Conclusion

A table saw handles edge jointing well when stock has a flat face, the blade is a quality ATB or glue-line grind, and the jig setup is dialed in correctly. It cannot face joint and reaches a quality ceiling for precision work. For regular rough lumber milling, a dedicated jointer with a spiral cutterhead is the faster and more capable long-term solution.