Router Dado Jig

Cut accurate, gap-free dados in seconds with this easy-to-build Router Dado Jig! Designed for fast setup and precise results, this DIY dado jig clamps directly to your workpiece and automatically squares itself to the edge — no extra clamps or tedious alignment required.

This custom-fit jig is built specifically for your router and bit, eliminating the need to calculate router base offsets. Simply place the jig on your dado layout lines, tighten down the built-in clamp, and start routing with total confidence.

The best part? It’s fully adjustable for dado widths from 1/2" to 1-1/2", making it perfect for fitting undersized plywood or custom joinery. Just use the mating workpiece or a cutoff to dial in a flawless fit — no trial and error needed.

With this step-by-step woodworking plan, you’ll create a versatile dado cutting jig that delivers clean, professional-quality joints with minimal fuss.

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