RIDGID R4510 On-Board Extension Table – Plans

in Tools & Jigs

Ridgid R4510 with on-board extension table folded for moving - wm I’ve finally finished the on-board extension table for my Ridgid R4510 portable table saw – and you can get the plans to build your own right here, right now – for FREE!

The 10" extension table is mounted on the saw and can stay there – even when you fold up the stand and take the saw to the job site. All the accessories – the fence, mitre gauge and blade guard can be stored normally as well. 

The problem with portables

Like most portable table saws, the length of table behind the blade is very short. It’s not a big problem when you’re ripping long stock, since you need to use an outfeed support or table anyway.

But working with stock between 10 and 30" long is more difficult, especially if you normally use a portable roller stand. Trying to position a stand immediately behind the saw can be tricky and still leaves a gap. And working without a support is dangerous – especially when you try to prevent your work from diving to the floor behind the saw.

(click on any image to see the photo gallery)

ridgid r4510 with on-board extension table - fence wm rear view of R4510 on-board extension table mitre slots - wm

My uneven floor outfeed issue – solved

My small basement shop has an amazingly un-level concrete floor. Add to that, the fact that I’m always moving the saw out of the way or rotating it to rip long lengths of stock and you can imagine the frustration of trying to manage an outfeed stand as well. With the on-board table it’s a piece of cake.

If the saw is tilted a couple of degrees in any direction – so is the outfeed table (“if” means “ALWAYS” in my shop :-). And even though the back of the extension is only 12" beyond the saw – you can rip, resaw or rabbet work pieces up to 34" long without worrying about it tipping off the back.

the vertical bridge is attached to the cord studs with small hose clamps - wmthe R4510 rear extension can support stock up to 34 inches long - wm  

Design Inspiration

The two keys to this design are the perfectly placed cord wrap studs on the back of the saw and the cut-outs in the sides of the table. The rear extension is cantilevered on a plywood "bridge" support that sits on the cord studs. The side extension on the left and an adjustable support arm on the right "grab" the saw table to hold the extension in place – even when the saw is vertical. The table is made from two layers of 1/2" plywood with a lap joint at the corner.

It’s extremely solid and provides a lot of extra work surface to this already-great portable table saw. You can remove the table in less than a minute with a hex key and leave the rear support on the saw – ready to support the end a longer outfeed table.

I’ve taken a quick look online at the portable saws by other major brands like DeWalt, Bosch, Makita, Ryobi, etc. but haven’t seen one that is as well-suited for this easy-to-make on-board extension table as the Ridgid. If you’re not familiar with the Ridgid R4510, check out the review by contractor Duane Verkaik below on ToolSelectTV. I agree with his assessment 100%.

Here’s the R4510 in action at ToolSelectTV.

Watch the video.


Get the plans

Instead of putting a price on these plans, I’m offering them for free – all I ask is that you spread the word and tell other woodworkers where they can get them.

the support leaves room to store the mitre gauge in the holder - wmthe top plywood layer makes slots for the mitre gauge - wm

Like all of our Stonehaven woodworking plans these Ridgid R4510 On-Board Extension Table plans include:

  • Dimensioned CAD Drawings

  • Hardware List

  • Colour photos

  • Detailed Instructions


Ridgid R4510 On-Board Extension Table Plans
#SST-1201  PDF 9pp


{ 2 comments… read them below or add one }


I recently bought a Ridgid R4513 Portable Table Saw (it replaces the R4510). Have heard of anyone using your plans for the On-Board Extension Table for an R4513? Are there any cut changes or hole locations I should be aware of? I would like to know, so please reply one way or the other.

Thank You !


Rick Atkinson


I just had a quick look at this YouTube video and it looks like they’ve changed the table design. I couldn’t see if they changed anything on the back of the saw but my extension table was designed to grab two hand holds – one cast in the left edge and one at the opening where the lever releases the sliding extension on the right side of the blade.


Bottom line: my design would need to be adapted to fit a 4513 and I don’t see an obvious way to easily secure it to the table top.

If you come up with a design alteration that works, please let me know and I’ll post it along with mine.

Good Luck,

Rick Atkinson
Stonehaven Life

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