Using a Router Table as a Jointer: Setup Guide, Best Bits, and What It Can't Do

If you have been holding off on buying a jointer because you already own a router table, the question is worth answering properly: yes, it can work for edge jointing, and no, it cannot replace a jointer entirely. This guide covers the full setup, the right bit for the job, and the honest limits of the method so you can decide what your shop actually needs.

What a Router Table Can (and Cannot) Do as a Jointer

Before setting anything up, it is worth understanding where this method works and where it falls short. Many woodworkers either dismiss the router table approach entirely or rely on it past its actual limits. The table below gives a clear view of both sides.

The key takeaway from the table is that using a router table as a jointer is a legitimate edge jointing method with real advantages in specific situations, but it is not a full substitute. If your work involves rough lumber that needs face flattening before edge work, a router table cannot handle the first step. For workshops that process pre-surfaced lumber and primarily need clean glue edges, the router table approach covers the job effectively.

How to Set Up Your Router Table for Edge Jointing

The setup is where most woodworkers either get it right or get frustrated and give up. A properly configured router table jointing fence is straightforward once you understand the principle: the outfeed fence half must sit proud of the infeed half by exactly the amount of material you intend to remove, mirroring the relationship between the infeed and outfeed tables on a power jointer.

Step 1: Choose the Right Bit

Select a straight or spiral bit with at least a 3/4-inch diameter. Smaller diameter bits produce a steeper exit angle as the cutting edge sweeps through the wood, which increases the chance of grain chip-out. A 3/4-inch straight bit with two flutes works well for general edge jointing of 3/4-inch stock. For figured wood or stock with reversing grain, a spiral upcut or downcut bit in the same diameter range gives cleaner results due to the shearing action of the flute geometry.

Step 2: Set the Outfeed Fence Offset

The outfeed side of your split fence needs to project forward of the infeed side by the depth of cut you want to take, typically 1/16 inch per pass. If your fence has dedicated jointing shims, use them. If not, a strip of plastic laminate (approximately 1/16 inch thick) glued to the outfeed fence face achieves the same result. Some woodworkers use credit card stock as a temporary shim for light passes. The critical requirement is that the shim material is consistent in thickness across the full height of the fence face.

Step 3: Align the Outfeed Fence to Top-Dead-Center

With the router unplugged, rotate the bit by hand to find the point where the cutting edge extends furthest toward the operator side of the table. This is top-dead-center. Place a straightedge along the face of the outfeed fence and adjust the fence until the outfeed face aligns exactly with the cutting edge at that point. If the outfeed fence sits even slightly behind the bit's maximum extension, jointed boards will curve rather than straighten. This alignment step is the most common source of poor results when using a router table as a jointer.

Step 4: Verify with a Test Pass

Take a scrap board with a known straight edge and run it through the setup. Measure the edge with a reliable straightedge after the pass. If the outfeed fence is correctly aligned, the result will be straight. If the board curves away from the fence, the outfeed fence is set too far back. If the router stalls or takes an uneven bite, the offset is too large. Reduce the shim thickness and try again.

Step 5: Feed Technique and Featherboards

Feed the board with the flat face against the table and apply consistent lateral pressure against the fence throughout the pass. As the board clears the bit and contacts the outfeed fence, shift your hand pressure to the outfeed side rather than pulling the board from behind. A featherboard on the infeed side holds the board firmly against the fence before the cut, which is particularly useful for longer boards or stock with any bow in the face. Take light passes of 1/16 inch or less and make multiple passes rather than attempting to remove significant material in a single cut.

Which Router Bit Works Best for Jointing?

Bit choice has a larger effect on edge jointing quality than most guides acknowledge. The forums are full of debate on this topic, and the answer varies by stock type and thickness. The table below consolidates the practical comparison.

For most 3/4-inch furniture and cabinet work, a quality 3/4-inch straight bit is sufficient and the easiest to dial in on the fence. The spiral bits are worth the investment if you regularly work with figured maple, walnut with reversing grain, or any material that produces chip-out with a standard straight bit. The cutterhead-style bits are effective but impose significant load on a router motor not rated for continuous heavy passes, so reserve them for intermittent use unless you have a 3+ horsepower router.

When Router Table Jointing Has a Real Advantage

There are specific situations where using a router table as a jointer is not merely a substitute but a genuinely better choice than a dedicated jointer. Understanding these cases helps you decide when to reach for the router table even if you have a jointer available.

Figured Wood and Reversing Grain

Router bits running at 22,000 to 30,000 RPM produce a dramatically higher number of cuts per minute than a jointer spinning at 4,000 to 6,000 RPM. On highly figured wood such as curly maple, bird's eye, or crotch cuts with reversing grain, the router table's higher cut frequency means each individual cutting event removes a smaller chip. The result is a cleaner surface with significantly less tearout than the same board passed over most straight-knife jointers. A spiral cutterhead jointer closes much of this gap, but the router table has a natural advantage on the most difficult figured stock.

Non-Wood Materials

Carbide router bits are safe and effective on MDF, plywood edge banding, plastic laminate, and acrylic sheet. A jointer with tool-steel knives should never be used on these materials, as the abrasive content dulls the blades rapidly and can cause unpredictable behavior. If your work includes composite panels or mixed materials, the router table handles edge jointing tasks that a jointer simply cannot.

Short Pieces Under 18 Inches

Short boards are awkward on a power jointer because there is not enough stock to keep pressure distributed across both the infeed and outfeed tables simultaneously. On a router table, a short board is easy to control because the fence provides continuous lateral support across the full pass length. For small parts, box sides, and drawer stock under 18 inches, the router table often gives more consistent results than a jointer.

When a Router Table Is Not Enough

The router table jointing method has real limits, and working past them produces poor results regardless of how carefully the setup is done. Recognizing these limits early saves significant frustration.

Face Jointing: The Operation a Router Table Cannot Do

Face jointing is the process of flattening one face of a board to create a reference surface. It is the first step in milling rough lumber, and it is the operation that separates a jointer from every substitute method. A router table cannot face joint. The table is horizontal, the bit is vertical, and there is no mechanism to take controlled material from the high spots of a cupped or twisted face. If your work involves rough-sawn lumber, the router table edge jointing method only functions after the face has been flattened by another means such as a planer sled or a router sled.

High-Volume or Long-Board Work

The router table setup takes significantly more time to configure and verify than simply turning on a power jointer. For occasional glue-up preparation, the extra time is a reasonable tradeoff. For shops that mill boards regularly or work with lumber over six feet long, the time cost and the physical challenge of managing long boards on a router table surface make a dedicated jointer the more practical tool.

When to Invest in a Dedicated Jointer

If you find yourself face jointing regularly, working with rough-sawn lumber, or producing multiple edge-glued panels per month, the router table workaround is consuming more time than the cost of a jointer justifies. A 6-inch jointer at the entry level is the most common recommendation for a first machine, and the productivity gain over any router table method is immediate.

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

If You Have a Jointer: The Cutterhead Advantage

One of the reasons the router table performs so well on figured wood is the same principle that makes spiral cutterheads perform better than straight-knife cutterheads on a dedicated jointer. Understanding the connection helps you evaluate whether a cutterhead upgrade closes the gap between a jointer you already own and the results you want.

Why the High RPM of a Router Bit Produces Cleaner Cuts

At 24,000 RPM with a two-flute bit, a router produces approximately 48,000 cutting events per minute. Each individual cut removes a very small amount of material, and the shearing geometry of the flute produces a slicing action rather than a chopping one. The result on difficult grain is a cleaner surface with less fiber disturbance than the impact of a full-width jointer knife striking the board all at once.

How a Spiral Cutterhead on a Jointer Replicates That Advantage

A spiral cutterhead on a jointer works on the same principle. Instead of a full-width knife striking the board in a single impact across the entire surface simultaneously, spiral cutterheads use rows of small carbide inserts arranged in a helical pattern. Only a few inserts contact the wood at any given moment, and each one shears at a slight angle rather than chopping straight down. The result is reduced tearout on figured wood, significantly lower noise, and a surface quality that approaches what you would get from a router table, combined with the face jointing capability and throughput that a router table cannot match.

Sheartak spiral cutterheads are direct-fit replacements for most major jointer brands including DeWalt, Delta, Powermatic, Grizzly, Jet, and many European machines. For a jointer that already works mechanically, upgrading the cutterhead is often the single most effective improvement available.

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

See more: Helical vs Spiral Cutterheads: Why Sheartak Recommends Spiral for Cleaner Cuts

Conclusion

A router table is a capable edge jointing tool when set up correctly with the right bit and a properly offset split fence. It handles figured wood exceptionally well, works on non-wood materials a jointer cannot touch, and performs reliably on shorter stock. What it cannot do is face joint, match the throughput of a dedicated machine, or handle long rough-sawn lumber efficiently. Use it where it works well, and invest in a jointer when your work demands more.