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Modified Bosch T4B Gravity-Rise Miter Stand

In Jesper Cook’s recent article, “Miter Angles and Miter Saws,” Cook points out that miter saws aren’t designed for finish carpenters. I believe the same can be said for miter saw stands.

There have been countless articles, reviews and tips written and videoed on the ideal miter saw stand (for example: Lamar Horton’s “Wooden Miter Saw Stand” and Gary Katz’s “Make a Miter Saw Work Station“). And while not everyone agrees on what’s “perfect,” most trim carpenters would agree that continuous material support is critical.

(Note: Click any image to enlarge)

Material Support

Continuous support provides needed stability to long runs of molding, makes material easier to handle, acts as a clamping surface for other tasks such as coping, and, most importantly, allows for more accurate cuts. I’ve botched too many cuts on trim that wasn’t seated quite right. Cutting trim that’s not flush to the base and table, or out of square to the fence, can cause joints to be way off.


In addition to continuous support, a must-have for me is mobility. I need to be able to move my equipment around my worksite without having to break everything down and put it back together again. I also can’t stand making unnecessary trips hauling equipment around when a more efficient way to transport and set up is readily available—it’s inefficient, aggravating, and costs me time and money.

The Search

I’ve looked at pretty much every commercially made miter saw stand on the market, and with the exception of Festool’s UG-Kapex wheeled stand, which is designed to fit the Kapex (see photo, right), I’ve never found a wheeled stand with true continuous material support. In fact, the only non-wheeled stand currently produced with continuous support that will fit the saws I own is FastCap’s Best Fence.

Of all the wheeled stands out there, Bosch’s T4B has always stood out to me. It’s simple, doesn’t take much to break down, and works with most SCMS saws.

A few months ago, I got a Bosch T4B for free with the purchase of a Bosch 5312 SCMS. The 5312 is nearly identical to Bosch’s now-discontinued 5412, minus the adjustable handle. (Replacing the stock blade with a Forrest Chopmaster has really yielded some nice results.)

After mounting the saw to the T4B, I really liked the ease of set up, the tool-less expansion rail adjustments for material support, and the fact that it was mobile. One nice thing about the T4B is that there are no legs for the extensions. This allows you to move the entire stand around with the supports extended.

Just like it is, this stand is perfect for cutting dimensional lumber. However, without continuous support, it’s virtually useless for trim work…at least pleasant trim work.

The Stand

The 5312 and other Bosch saws have on-board base extensions used to support work pieces near the saw’s base. When pushed all the way in, the tops of the extensions rest on ledges machined into the base. The extensions move in and out on rods running under the saw on rails. The extensions are locked in position with clamping levers.

To add continuous support to the T4B, I built wings out of 3/4-in. birch plywood and wrapped the edges in 3/4-in. maple. I made each wing 11 1/2 in. wide and 58 in. long, giving me over 11 feet of support. I used the ledges of the base as a place to rest the wing, the same ledge that the extension base slides over. To do this, I had to completely remove the sliding base extensions. I secured the wings to the base using the rods from the extension base. They were easily removed by loosening some set screws.

To join the rods to the wings, I nailed and glued two pieces of plywood together and pocket-hole screwed them to the underside of the wings.

I then drilled two holes through the doubled-up plywood as a place to run the rods through.
As a grip to move the rods in and out of the rails, I made some wooden knobs, drilled them to accept the rods, and placed a set screw through each knob to hold the rods to the knobs.
I use the saw’s clamping levers to lock the rods to the base. It makes for a really secure connection.

The far ends of the wings rest on the T4B’s work height support.

To secure it, I ran a carriage bolt through the wing and work height support,…
…and I used a 4 1/4-in. tapered jig knob from Rockler to hold it down. (In hindsight, I should have used threaded inserts rather than carriage bolts, which would have allowed me to avoid having to drill through the wings.)

This also makes it easy to put together and take apart. Taking the wings apart and putting them back takes about 30 seconds.

It’s very simple, doesn’t have too many bells and whistles, and works great for my needs.

It also makes for a nice worktable. Even with the wings on, I can still move the saw around when needed. And when I need extra support for coping or planing, I use a FastCap Upperhand underneath one of the wings.

• • •


Chris Knighton‘s interest in carpentry started as a young boy, working with his father building fences, gates, and sheds at their family home. Years later, Chris spent some time working with a seasoned carpenter, learning to build porches and decks. His real interest is in finish work, but that didn’t come until being forced to renovate his own home.

Though not currently in the profession, Chris’ passion for finish work has fueled a constant study and learning process. Recently, Chris has learned to design built-ins, mantlepieces, and other projects using SketchUp.

Chris, his wife, and their four children live in Northwest Louisiana.


25 Responses to “Modified Bosch T4B Gravity-Rise Miter Stand”

  1. sal

    Nice job chris. I actually just did a similar build for my dewalt stand.

    • Chris

      Thanks Sal! If you get time, take a photo of your stand I’d like to see it.


    • Horacio

      Hi, I have the dewalt also could you send some pics please.Thanks

      • Raymond Valois

        I also have the dewalt miter saw stand and I modified it as well I will up load a couple of pics later. it is still a work in progress but would gladly take any feedback on improvements.


        • Raymond Valois

          Here are a couple of pics of my Dewalt miter saw set up.
          I built it a while ago and I stare at it looking for better ways to improve it. Mine may not be as refined as Chris’ but it does do the trick.
          Raymond V.

  2. Jesse Wright


    Great stand! I have the kapex & UG stand and love it but your bosch base is much more functional for other saws. I may look at this rig for a future saw. Nice article too!

  3. Carl Duguay

    Good job on the mods to the stand. I’ve the Bosch TS2000 stand (for my Bosch portable table saw), which uses the same Gravity-Rise feature that’s on your T4B. Couldn’t ask for an easier way to cart my saw to and from job sites or around the shop.

  4. Chris

    Thanks Jessie!

    I’d sure love to have your setup in addition to this one! One day I hope?

  5. Chris

    I have that same stand and love it! However, like the T4B it’s missing material support, i.e., out feed and left side. Bosch makes extensions but they are severely lacking. I’ve considered doing some mods to the stand and add solid support. Maybe for another article?

  6. Dezri Dean

    Where exactly did it say- “Cook points out that miter saws aren’t designed for finish carpenters”??
    I did read where he said ” Miter saw gauges confuse a lot of finish carpenters for one simple reason—they aren’t designed for finish carpentry, they’re designed for framing and stairs. Let me show you what I mean.”
    While he said THAT and I agree to a point! (depending on education and experience) I think you are misleading us to make a point!
    I truly feel that any woodworker with a brain could figure it out even through trial and error.
    I have and will continue to use my miter saw for fine woodwork including compound angles. I don’t expect a scale marked in degrees to be accurate to 1/100 OR 1/10 of a degree and am capable of compensating for the crudity of such, I just make a couple of test cuts first. (I also did an initial check and adjustment of my miter saw!) Anyone that cannot do that cannot expect perfect cuts! It isn’t the equipment so much as it is the skill and execution!

    • Chris


      Thanks for your comment.

      You’re correct, Jesper never specifically said miter saws weren’t designed for finish carpentry (I didn’t quote him saying that), however, I believe one could make that inference based upon a miter saw’s miter gauge not being designed for finish work.

      I can’t see how anything has been misleading? While understanding how to apply miter gauges when roof framing vs finish work isn’t necessarily high level mathematics it can certainly be confusing to some. I’m sure there are fine carpenters out there that get the correct angles all the time but have never thought about the mechanics of it much. Jesper’s article just explains it, that’s all.

      I don’t know who ever has ever suggested not using a miter saw for finish work?

    • Sonny Wiehe

      I think Dezri Dean makes a very valid point about the misleading nature of Chris’s opening statement and is worth following up on. I don’t think it was intentional; perhaps an overzealousness in striving for continuity with a prior TIC article ???(just a guess).

      To be clear, I believe miter saws ARE primarily designed and intended for finish carpenters. If not, what aspect of construction would they be intended for? I also believe miter saw stands ARE designed and intended to support miter saws (and therefore are designed for finish carpenters) to which their name refers. Again, what else would they be intended to be designed for? Further, I think the crux of this issue centers around the holy grail search for each individuals perfect miter saw set up. That problem is going to be defined differently by each carpenter’ unique budget, transportation, site, and work limitations/ demands. Those are the core reasons why there are so many design options being marketed to us; someone is always going to be able to design a better mouse trap at different price points.

      I believe Chris would have been on less controversial ground by opening with something similar to his statement: “(sic) while not everyone agrees on what’s “perfect,” most trim carpenters would agree that continuous material support is critical” He does a great job supporting this thesis with regard to the Bosch T4B. I really appreciate Chris taking the time to show us how well he achieved his particular goal with this moderately priced, widely adaptable, and commercially available model. Thanks Chris!


  7. Dezri Dean

    “And here I must needs observe, that as reason is the substance and origin of the mathematics, so by stating and squaring everything by reason, and by making the most rational judgment of things, every man may be, in time, master of every mechanic art. I had never handled a tool in my life; and yet, in time, by labour, application, and contrivance, I found at last that I wanted nothing but I could have made it, especially if I had had tools.”
    Quote from Highland Woodworking site AND Robinson Crusoe’s tool chest article!

  8. Horacio

    Very nice, simple practical and not expensive. kapex & UG is a very nice set up but $2,000 is toooo much for my wallet right now.

  9. David Lemke

    The old “Chop Saw Stand” has always been a hassle. I think all the latest little stands are designed just to drain your wallet. Look how much you have to fiddle with them just to make them functional, they would not hold up to framing. I probably will stick with the old 2×12 or floor joist modified to flush out with the saw and some saw horses, until I can build the one I have designed in my head. Which will be a lighter, accurate, efficient and professional setup. My stand would need to be able to withstand multiple units worth of heavy framing stock, then roll into siding, usually pretty fine cedar soffit and siding work, and then go inside and knock out some nice tight finish work. Then the next job, hopefully, and repeat.
    Good to see guys who care and try.
    Burning out nail slinger…

  10. Emanuel

    Nice work and excellent details. I’m in the process of upgrading my miter saw. This info will be very useful.
    Thanks for sharing.

  11. Ian R

    Thanks for the write-up Chris, and for being willing to share your ideas! If you would, it would be great to see woodworkers in these articles wearing safety glasses when operating a chop saw. We’ve got a lot of young folks coming up in this business, and they could certainly benefit from the good example we can set. As we know, it only takes a split-second to lose an eye, and to make matters worse it is more often the case that our tax dollars will pay the medical bills for an injury like that (either through increased worker’s comp premiums or our state taxes!)

    Please pardon my soap-boxing, and keep up the creativity!

  12. Chris L.


    Thanks for writing this. I recently purchased a new Bosch 12″ saw with gravity rise stand and this is the first accessory I made for it. I used the same dimensions as you gave. I used hanger bolts in place of the carriage bolts you used and all-thread couplers for the knobs (I plan on getting the Rockler knobs you used later). I had to rout a few notches in the underside of the wings to avoid interference with the saw in a couple of places. I plan on adding an extension fence and flip stops… and maybe some undermount cubbies to hold some quick clamps.

    Again, thanks for writing this and thanks to TIC for posting it.

    Chris L.

  13. Chris Knighton

    Chris L.-

    Thanks for the comment. I’m glad you found the article useful. I still use my setup everyday and unless I plan to move it with the wings attached, I rarely use the rockler knob or even the rods. I just let the carriage bolt hold it in place.

    Within a few months after this article was published, I saw that FastCap added wings for the Bosch stand to their “Best Fence” lineup. I wondered if this article might have encouraged their development?

    Thanks again for the comment as you will most certainly appreciate the continous support the wings give you.

    Chris Knighton

  14. Alstair Hick

    I have already a basic miter saw stand last month. Can you please tell me the difference between a gravity rise miter stand and basic miter saw stand.

  15. Don

    Excellent mod, Chris. I wish I had seen it before I bought a Best Fence. Would have saved some money. I love my T4B but I came across a forum where a person asked if he could cut 7 inches off a 16 foot 2×12 with that stand (15′-5″ to one side of the blade) without additional support. A Bosch rep answered that he could. Makes you wonder where Bosch gets their employees.

  16. Bearpaw

    You guys sound like you’re not busy enough so in the mean time lets pick apart his words for fun. Lol I enjoyed his article and it has me thinking how I can improve my miter saws abilities. I have several. I use my milwaukee cordless most of the time it has been a great saw for onsite use, and with the improved batteries it will last several days before needing recharged. My least favorite is my kapex it seems way over rated. I also use a makita model ls1219 it has a very large capacity about 16 1/2 ounces of cutting on 90 deg
    I use it for cutting wood I cut on my sawmill. Big powerful etc.
    I also have several other saws for various reasons some for cutting solid surface or aluminum etc . Some because I was out of town and needed one. Im interested in seeing some of ya’lls setups.


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