Proper support for router table top

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Forum topic by barnbuilder posted 01-29-2016 06:22 PM 302 views 0 times favorited 1 reply Add to Favorites Watch
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2 posts in 282 days

01-29-2016 06:22 PM

I’m brainstorming ways of building a router table extension into the wing of my table saw. I’m also going to build a cabinet underneath the router table. My thoughts are to mount the table top and cabinet to the rails of the saw but not to each other. That way I can adjust the height of the table in order to make it flush with the cast top of the saw by not having it attached to the cabinet.

My question is in regards to the strength of the router table top… I have a PC 7518 and the Incra lift = Heavy! I also plan to cut slots for T track into the top (compromise strength). I thought about building the top out of 1” MDF and running some braces underneath. But then I had the idea of not using any braces underneath and mounting some leveling feet to the inside vertical wall of the cabinet close to the router plate opening. This would provide support around the plate opening and give me adjustability to apply more or less pressure to correct for sagging/crown. The mounts would be something like this (obviously they would be mounted upside down from this with the flat foot against the underside of the top):

Is there any reason this wouldn’t work well? Is 1” MDF enough given the weight of the router and lift and the slots for the T track or should I add a layer of plywood underneath (I have ¾” BB on hand)? I would use a total of 4 of these mounts, one on each side of the plate opening.

Sorry for the lengthy post. I’ve never built a router table before and don’t have a good feel for the support needed.

1 reply so far

View JeffP's profile


573 posts in 816 days

#1 posted 01-29-2016 06:38 PM

Since you mentioned Incra already, let me just throw this out there.

I too have Incra gear including the router lift they sell. About a year ago I bought the larger of the two router table tops they sell. I cut mine in half and used one half for the router on the left end of my Sawstop PCS, and the other half as an additional extension wing on the right-hand end of the saw (beyond the original cast iron wing.)

This Incra router top is approximately 1 inch thick particle board covered with white melamine. It has held up nicely, and I don’t think you would need anything thicker than that. Mine is supported at the front and back of the saw with some additional lengths of angle-iron that I cobbled onto the saw wings to provide the needed length.

I MacGuyvered up a solution similar to yours (but just using a regular 1/4-20 bold and a nut) to provide adjustable height where it meets the table-saw wing. Works well enough.

All told it all works well and is sturdy enough. I wouldn’t want to try sitting on the corner of the router extension, but it is certainly firm enough to not go anywhere when using the router table.

-- Last week I finally got my $*i# together. Unfortunately, it was in my shop, so I will probably never find it again.

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