Kreg KJDECKSYS20 Deck Jig — Precision Drill Guides for Concealed Deck Screws

Efficient, precise deck building starts here

Whether you're a weekend woodworker or a professional contractor, the Kreg KJDECKSYS20 Deck Jig helps you create decks with clean, concealed fasteners. The system guides your drill and driver bits into deck boards with consistent alignment, reducing guesswork and delivering repeatable results.

Three hardened-steel drill guides lock the bits in place, keeping the stepped drill bit and driver bit aligned for accurate work. The result is steadier drilling and clean edges as boards expand and contract outdoors, so your deck look stays tight from start to finish.

Designed for durability and drainage

The KJDECKSYS20 includes deck spacer rings that promote proper spacing and drainage, contributing to longer-lasting decks. This feature helps water shed away from joints and minimizes warping or water pooling near fasteners.

Versatility and precision in one system

With hardened guides that hold the bits at the correct angle, this kit supports both drilling and driving tasks on deck boards. It’s designed to work with concealed deck screws for a sleek, professional finish.

What’s inside and how it helps your project

• Premium grade components built to resist wear during repeated use
• 3 hardened-steel drill guides that maintain precise bit position
• Hardened guides that keep the stepped bit and driver bit aligned at the angle you need
• Spacer rings to improve drainage and deck longevity
• Concealed deck screw compatibility for a clean, professional look

Real-world benefits you may notice

• Faster setup and more consistent screw lines across boards
• More uniform edge quality with fewer visible gaps
• Better drainage around fasteners for outdoor longevity
• Smaller learning curve for first-time deck builders while staying within budget