Ridgid R4510 Table Saw Extension

  • Advertise with us
Project by Ron Stewart posted 03-24-2019 09:29 PM 13388 views 9 times favorited 5 comments Add to Favorites Watch

This extension table for my Ridgid R4510 portable table saw is not my design. I stumbled across it on Pinterest and built it from the plans at

I was attracted to it for several reasons:
  • It extends the depth of the saw’s table by 12”, eliminating the need for a separate outfeed support for many cuts (rip cuts of less than 34”).
  • It supports my crosscut sled, allowing me to use it without using a roller stand for support.
  • It doesn’t interfere with any table saw operations (moving the fence, expanding the tabletop, tilting the blade, collapsing the saw, etc.)
  • It doesn’t require any permanent modifications to the saw.
  • It’s clamped onto the saw and is easily removable.

There’s some really very clever engineering behind this extension table. It leverages the saw’s cord wrap studs and tabletop handle cutouts.

The main support element (which the designer calls the bridge) is a back plate that rests on the cord wrap studs, held in place by hose clamps. The bridge is secured to the table’s body by a support arm whose front end grabs the handle cutout on the tabletop’s right side. The support arm also has an ingenious tilt mechanism composed of two bolts on the back end, one of which acts as a fulcrum, the other as a tensioner.

A thick support beam bolts to the top of the bridge, and the rear extension table surface is bolted to it. The bridge bolt holes in the beam are slightly oversized and allow just enough vertical movement to accurately align the extension table with the tabletop.

A narrow side extension table is bolted to the rear extension and clamps to the tabletop’s left side with a cleat that wraps around the tabletop’s bottom edge. It prevents the rear extension from tilting. The whole thing feels very solid and secure.

Sadly, this design won’t work as-is with the newer Ridgid R4513 saw that replaced the R4510 because the newer saw doesn’t have the handle cutouts.

See the designer’s web site for more details.

Here are a few more photos.

As I mentioned earlier, the extension table supports my rather large crosscut sled.

The support arm cap has a cutout to enable easy access to the saw’s extension lever.

The support beam sits below the fence’s locking mechanism, with the extension table behind it, enabling the fence to move without interference.

Here’s what it looks like with the saw collapsed for storage.

-- Ron Stewart

5 comments so far

View stefang's profile


17040 posts in 4785 days

#1 posted 03-24-2019 11:35 PM

This looks like a very nice and practical improvement and very well done too.

-- Mike, an American living in Norway.

View rustynails's profile


963 posts in 3980 days

#2 posted 03-25-2019 01:24 AM

Ron, thanks for posting this project it looks great on your saw. I may just have to put one on my Ridgid as well.

View NormG's profile


6576 posts in 4455 days

#3 posted 03-25-2019 02:06 AM

Wow, well thought out, lokos great

-- Norman - I never never make a mistake, I just change the design.

View Ron Stewart's profile

Ron Stewart

391 posts in 3955 days

#4 posted 03-25-2019 06:07 PM

Thanks for the comments. The designer did a really nice job.

-- Ron Stewart

View Ivan's profile


17281 posts in 4319 days

#5 posted 03-26-2019 07:48 PM

So clever idea!! I have similar problem with my Metabo TS254. Thanks for great idea.

-- Ivan, Croatia, Wooddicted

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics