Gilles' Outlet

April 23, 2007

Building a mouting collard for BOSCH RA1181 Router Table

Filed under: Woodworking — Gilles @ 4:05 am

Half lap joints are used to build a rectangular frame.


Skill Level: 2 (Basic)

Time Taken: About One Hour

When I mounted my BOSH RA1181 Bench Top Router Table on a base cabinet, I wanted to provide about 1” of additional clearance under the table to facilitate access to the router and to provide a shelf for storing frequently used items.

I decided to build a rectangular frame out of 2x4s. The frame will be installed on top of the base cabinet and the router table will sit on the top of the frame, creating the additional clearance.

Left: I the four pieces of the frame out of a Kiln Dried C& BTR 2×4.

I measured the carcass of the cabinet and decided that the frame would be proud of the cabinet by approximately 1/2” on each side. I verified that the router table would have enough space to rest on the frame.


Right: I used a Japanese Pull Saw to cut the half lap joints. A Japanese pull saw cuts on the pull stroke.

There are many ways to cut half lap joints: using a table saw, a router, a chop saw and finished with a chisel…

Left: detail of a half lap joint. Half of the material has been removed on both end pieces so that pieces can be interlocked.


Right: the same joint being dry fitted. One end piece goes above the other and fits in the notch created on the other piece.

Half lap joints are simple to create and form a very strong bond because of the large glueing suface they offer.

However, they are not as visually attractive as finger joints or dovetails.

Left: a view of the frame with all half lap joints cuts before appliying glue and clamping. 

Right: I applied glue on all joints, assembled the frame, checked for square and clamped all pieces in place. The glue was left to dry overnight.

Tools Used:

  • Power Miter Saw  
  • Japanese Pull Saw 
  • Clamps
  • Basic Carpentry Tools

Materials Used:

  • 2×4 "STUD"
  • Yellow Wood Glue

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