Self-Clamping Table Saw Stop Block for Crosscuts
When cutting several short pieces to the same length at the table saw, a stop block makes the process faster and more accurate. But using the rip fence directly as a stop during crosscutting can create a dangerous situation.
If the cutoff becomes trapped between the saw blade and rip fence, it can bind and kick back.
A common solution is to clamp a scrap block to the rip fence well ahead of the blade. This provides a reference for positioning the workpiece while allowing it to clear the stop before reaching the blade.
I made a self-clamping table saw stop block that makes this setup even more convenient. Instead of reaching for a separate clamp, the block slips over the rip fence and locks in place with a simple knob.
How the Self-Clamping Stop Block Works
The stop block has a simple U-shaped plywood body that's sized to fit over the table saw's rip fence.
To install it, slip the block over the fence and position it at the desired location.
Then tighten the knob on the side.
The knob presses an internal pressure bar against the rip fence, securing the block without a separate clamp.
Once it's secured, the block provides a consistent reference for positioning workpieces before making a crosscut.
The key is to position the stop block far enough ahead of the blade that the workpiece clears it completely before entering the cutting area.
This prevents the workpiece from being trapped between the rip fence and blade.
Building the DIY Table Saw Stop Block
The design uses a few simple materials and basic woodworking techniques.
The body consists of plywood pieces assembled into a U-shaped channel that fits over the rip fence.
The clamping mechanism is built into one side of the block.
Making the Plywood Body
Start by measuring the width and height of your table saw's rip fence.
Size the plywood pieces so the assembled body slips over the fence without excessive play.
The two sides extend downward from the top, forming a channel that straddles the fence.
Adding the Built-In Clamp
To create the clamping mechanism, cut a dado in one side of the plywood body.
The dado houses a pressure bar that bears against the rip fence.
Install a T-nut in the dado to receive a threaded knob.
When the knob is tightened, its threaded stud pushes the pressure bar against the fence.
This locks the stop block in position.
Loosening the knob releases the pressure, allowing the block to slide along the fence or be removed.
A Convenient Upgrade for Table Saw Crosscutting
This shop-made stop block offers the convenience of a dedicated crosscutting accessory without requiring a complicated jig.
It slips on and off the rip fence quickly, and the built-in clamp makes adjustments easy.
For cutting multiple pieces to the same length, it's a practical way to establish a repeatable reference while keeping the workpiece clear of the rip fence during the cut.
Table Saw Safety Tip: Always use a miter gauge or crosscut sled to support and guide the workpiece. Position the stop block entirely ahead of the blade so the workpiece is no longer touching it before the cut begins. Verify that the block is securely clamped and cannot contact the blade. Never use the rip fence alone to guide a crosscut.
Shop-Made Table Saw Standoff Stop Block
Looking for a simple way to cut short pieces to length at the table saw? This clever tip turns a shop-made jointer push block into a standoff stop. Its angled corner allows the workpiece to clear the stop before reaching the blade, helping prevent binding and kickback.
SEE THE STANDOFF BLOCK TIP → Another Way to Make Safer Crosscuts
