Saws

Table saw blade is not parallel to the fence

A blade that's out of parallel with the fence, sometimes called being out of alignment, causes binding, burning, and kickback risk on rip cuts and needs to be corrected at the trunnions, not just by moving the fence.

Difficulty
Intermediate
Time
45–90 minutes
DIY cost
$0–$10
Pro cost
$100–$200

Symptoms

  • Wood binds or burns during rip cuts
  • Fence measurement doesn't match actual cut width consistently
  • Kickback happens even with the fence set correctly
  • Cut edge shows burn marks near the back of the blade

Likely causes

  • CommonBlade trunnions shifted out of alignmentThe assembly that holds the blade can shift from vibration or a bump.
  • PossibleFence rail not parallel to the miter slotsIf the fence itself is misaligned to the table, it will never be truly parallel to the blade.
  • Less commonBlade bent or warpedA damaged blade can appear misaligned even when the saw is fine.

What to do

  1. Unplug the saw before making any alignment checks.
  2. Measure from a tooth at the front of the blade to the table's miter slot, then rotate the same tooth to the back and measure again.
  3. If the two measurements differ, the blade (via the trunnions) needs realignment; consult the saw's manual for the trunnion adjustment bolts.
  4. Once the blade is parallel to the miter slot, adjust the fence so it's also parallel to the miter slot using the same method.
  5. Recheck both measurements after adjustment to confirm they match within a small fraction of an inch.
  6. Make a test rip cut on scrap to confirm the binding and burning have stopped.

Tools and parts

  • Table saw
  • Tape measure or dial indicator
  • Wrench for trunnion bolts

When to call a pro

Trunnion alignment can be involved on some saws; if you're not comfortable working under the table, a tool repair technician can perform this service.

Safety

Use caution

Keep the saw unplugged while working underneath or near the blade during alignment.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.