Rockler Router Table Box Joint Jig

WOOD magazine rating


Make precise, tight-fitting box joints with your router! For use on virtually any router table with a standard 3/4" miter slot, this jig features a smooth-sliding backer sled and three (3) precision-machined aluminum indexing keys to give you air-tight joints with either 1/4", 3/8" or 1/2" spacing. Works with stock up to 3/4" thick.

WOOD magazine review

Make perfect box joints on your router table

Review Summary

I can’t imagine an easier way of cutting box joints than with Rockler’s Router Table Box Joint Jig. It’s almost fool-proof: Within 15 minutes of opening the box I had made four perfect-fitting joints. Here’s how it works. The melamine-coated MDF base mounts in the miter slot of any router table. You install a 1/4", 3/8", or 1/2" upcut or downcut spiral bit in the router and a matching indexing guide on the base.
Use a setup bar (set available at Rockler, #36918, $18) equal to the bit diameter to set the spacing between the bit and indexing guide. Holding your workpiece against the sled’s fence, slide it over the bit to cut a notch. Slip that notch onto the indexing guide and rout another one. Repeat across the board’s width. The only joints I routed that didn’t fit perfectly resulted from off-brand bits that did not measure exactly the same as the indexing guides, which proved dead-on. (Bits are not included with this kit.)

Detailed Ratings

out of 5





Ease of Use




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