Thicknessing Jig

Tickness Planer

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Working on a fine project and struggling to plane all your stock to the same thickness? Here’s the solution, a neat little jig that guarantees accuracy!


  1. Eddy Flynn on 30 May 2014 at 6:02 pm

    i love the poor mans tool range is there no end to your cost cutting, thanks you

  2. Jay Grenier on 30 May 2014 at 6:35 pm

    This is such a great idea, thanks!

  3. dpaul on 30 May 2014 at 6:59 pm

    Very cool. Definitely going into my jig arsenal.
    I take it this is only for relatively small parts. Nonetheless, this will often be useful.

  4. Rich Cowper on 30 May 2014 at 7:07 pm

    Thanks once again for sharing, Paul; very much appreciated. Can’t wait to try out your technique…

  5. laurence on 30 May 2014 at 7:18 pm

    Thanks Paul.
    Another great idea.
    This sparks another idea in me.
    How about adapting this jig for making accurate medium to large dowels?

    Thanks again,


  6. bit101 on 30 May 2014 at 7:31 pm

    The Paul Sellers Thickness Planer, now available at Home Depot (in kit form).

  7. david o'sullivan on 30 May 2014 at 9:09 pm


  8. davewilkinson on 30 May 2014 at 9:57 pm

    What a great (and simple) idea! Thanks Paul.

  9. woodspirit on 30 May 2014 at 10:03 pm

    Thank you Paul

    You are a true Master

  10. Christopher on 30 May 2014 at 10:24 pm

    Im sorry I feel stupid for asking this question but the bottom board how wide was that in reference to the width of your plane. ? I looked for a drawing download but didn’t see one. If fact I need to do this exact thing right now for runners for my drawers on an assembly table I’m building as I speak now. Again sorry for the question I think I know but just would rather be sure. Thanks for sharing this and again just the width of the bottom board I have the rest under control!! ” I Think” ha ha Christopher oh yeah Paul an acquaintance of your told me yesterday that you use a belt sander for cleaning up old vintage hand saw plates is this true or was he messing with me mind? Thanks

  11. sherbin18 on 30 May 2014 at 10:27 pm

    Nice idea. Well executed as always.

  12. Ted Charlton on 30 May 2014 at 10:45 pm

    What a good idea. I will have to try that on the next suitable project. Thanks paul.
    Regards Ted

  13. NikonD80 on 30 May 2014 at 11:05 pm

    This would have been so useful for the drawer I was building for my cabinet last week. Such a straightforward idea and absolutely brilliant.

  14. Jens on 30 May 2014 at 11:12 pm

    Machine repeatability with hand tools!
    We will cock a snook at the “power tool” Woodworkers 🙂

  15. George Swindle on 31 May 2014 at 1:09 am

    At one point Paul says 17mm is 5/8. 17mm is 11/16.
    Guess I have been a mechanic to long

  16. RL on 31 May 2014 at 1:38 am

    By chance, I made this little video two weeks ago on the same subject! My planer is not as elegant as Paul’s but the results are similar.

  17. STEVE MASSIE on 31 May 2014 at 11:14 am

    Paul thanks for this, another great idea and a whole lot quititer than my Delta Lunch Box planer LOL. I will be making one of these for sure.


  18. Ed on 31 May 2014 at 1:33 pm

    Paul- Suppose I have some small pieces like you show that I want to be the same thickness, but I don’t care exactly what that thickness is (because I’ll mark my joinery to my thicknessed stock). Could I clamp a baton across the bench to use as a stop, place all my pieces against the stop side by side, and plane them together? Then they’ll come out the same thickness. Would that work as an even quicker technique (no carriage to build) when the exact thickness is not critical?

    • Philip Adams on 5 August 2014 at 10:54 am

      Hi Ed,
      If you where to do that, you would not have anything at the start or at the sides to stop you from going thinner there, so it would be the same as plaining normally. And you might have problems with the boards moving.

      You could make a guide as in the video and make it in such a way that you can alter the thickness for different projects.

      Hope it goes well,

      • Hugo Baillargeon on 23 January 2017 at 3:21 am

        Dear Phil,

        Simple question…what Would be the trick for planing a 12″X5″X1/8? I am a bit…stuck! Tx for all!

  19. Kirk Zabolio on 31 May 2014 at 5:50 pm

    Thanks Paul, great video as always.

  20. Pasquale Avocone on 1 June 2014 at 1:24 am

    Great idea Paul thanks.

  21. Sandy on 1 June 2014 at 3:56 am

    Very nice. I’d actually thought about something along this line and even one for a wide board. I’ll make one of these for my lamp when I get to it…. Thanks Paul!

  22. Joe Tinney on 3 June 2014 at 2:10 am

    My god, you do make woodworking accessible. I decided some time ago to take to building a bench for a kitchen table mostly with hand tools as I don’t have many power tools. I’ve fell in love with the concept and you’re taking the nervousness out of me with simple approaches with each and every video.

    Thanks again!

  23. Lynn Bradford on 3 June 2014 at 2:30 am

    Very functional design. I think it would work nicely for thin stock. Thanks, Paul!

  24. Mihai on 3 June 2014 at 6:36 am

    … simple things , bright ideas , huge value : thank you.

  25. adrian on 4 June 2014 at 3:36 pm

    Perfect and so simple.
    Great for all those small trim pieces that are difficult and a little dangerous to handle on a power joiner or planer.
    Thank you for that idea

  26. Salko Safic on 4 June 2014 at 10:54 pm

    The Paul Sellers thickness planer is a clever invention and will be the most used appliance in my workshop. I bet not long after this video release tool makers will be coming up with their version and will charge a hefty price for it. I can see the market potential in this little invention. Great idea Paul keep em coming old mate keep em coming.

  27. caerlynnfibers on 4 June 2014 at 11:34 pm

    Dear Paul,
    I’d like to thank you for your very inspiring work. I’m following your posts as much as I can. Here again I find a great solution to thickness planing. Makes me think of a shooting board in some way. My little workshop starts filling up with all those “little helpers”.
    Knowledge not only is a deep pleasure, it makes us richer every day of all those hours swimming in a see of scrolls and shiny shavings.

  28. Gareth Martin on 14 June 2014 at 10:15 pm

    This is the meat and potatoes of what I need to progress, coming to the thing late in life, no talent or skills to speak of, this simple jig gets my raw material to the same spec. as that of the “naturals”. Now all I need to do is perfect the setting up of a No.4. I’m very grateful, thanks.

  29. Bart Steed on 4 August 2014 at 6:33 pm

    WOW. Absolutely genius! I am totally making one of these to assist my marking gauge procedure!! Thank you so very much, Paul!

  30. Martin Ericson Borgh on 11 September 2014 at 8:54 pm

    Very neat little item! I looked on YouTube and found this little gadget made by another wood worker which was also intriguing since it was seamlessly adjustable in height:
    Would take very careful layout and adjustment to build properly but I think I’ll try this approach since I have great difficulties in not complicating things! =)
    More seriously it’d be a huge time saver being able to not have to plane the side carriers to thickness for each thickness you’d like.

  31. robert lindh on 13 July 2015 at 4:50 pm

    Have seen this tool in use in making components for Japanese screens…Great explanation of the jig making process.

  32. steve49 on 15 November 2015 at 11:24 pm

    Is there a method for using this if my stock is wider than the plane?

    • Tony Caro on 22 February 2016 at 9:29 am

      Great question Steve, I was wondering the same thing. I like to make boxes with thin sides but sometimes they are sides than the sole of my widest plane. Anyone have a solution?

  33. Justjoe on 9 June 2016 at 1:32 pm

    Perfect for thin stock as well. It just falls over in the thicknesser planer lol.

  34. dddillon on 19 September 2016 at 6:58 pm

    I don’t suppose that there is a similar style of jig for something that is a bit wider than the plane blade? For instance, if you needed to have a bunch of 4 inch wide boards all planed to the same thickness…..

  35. dmargeson on 15 November 2016 at 3:13 am

    First time I have seen you use a bevel up plane. I just ordered one. I am new to wood working.
    I thought bevel up low angle planes were for tough grain woods. I have some rough sawn oak I have been working and it has some very squirrely grain witch seems to change direction from end to end and some times side to side. I thought this plane might help with this.
    Maybe you could touch on this in one of your Q&A video’s.

    • Philip Adams on 5 December 2016 at 11:05 am

      Hello Dave,
      Paul has blogged on this topic quite a bit, so I think that is a good starting place:

      He also discusses it in the following video:

      We don’t use bevel up planes often, and don’t find them to work any better on tough grain. Often the opposite can be true. They are nice to have for using with a shooting board and plaining edges for edge jointing. Thank you for the Q&A suggestion, we will definitely consider it.

      Best, Phil

  36. larryl49 on 4 December 2016 at 9:04 pm

    Wow great idea will be making one.

  37. Stephen Hillier on 20 December 2016 at 6:16 pm

    Made a small change to the Paul design. Wanting the jig to be used for all sorts of thicknesses I was concerned about the end stop. It needs to be lower for thin material but if you are thicknessing thicker stock you need more meat in the end stop. So, I made an end stop. Cut two long grooves vertically and then used two coach screws and very large washers to hold the end stop in place. Slackening the screws off a little the end stop can slide up and down on the end of the jig to end up just under the level of the work you are trying to achieve.

  38. Jonathan Gausinet on 8 April 2017 at 9:07 pm

    How would this work for poeces of wood thay are wider than the plane?? Any ideas guys?


  39. Robert Fowler on 30 June 2019 at 5:07 am

    Does the length of your stock make any difference in how the Thicknessing Jig works?
    I am making a pie safe / jelly cabinet and the legs are 55″ long 2″ square.

    • Izzy Berger on 2 July 2019 at 8:38 am

      Hi Robert,

      Paul says:

      No it doesn’t make any difference.

      Kind Regards,

  40. Pete Wilson on 13 June 2020 at 10:17 pm

    I’ve made myself one of these but am struggling a bit! The small length of wood I am thicknessing had a bow in it, and is also relatively ‘springy’. All I seem to have achieved is a beautifully thicknessed but similarly bowed piece of material. What am I doing wrong do you think?

    • Izzy Berger on 18 June 2020 at 4:31 pm

      Hi Pete,

      Paul says: It sounds like the wood is springing back up into the plane as you cut so i’m afraid you’ll have to find a straight piece of wood. You could use a piece of double sided tape in the mid section to hold it down while you plane it.

      Kind Regards,

  41. Andrew Sinclair on 14 June 2020 at 11:04 am

    Hey Pete,

    One idea I’ve used is to stick down the work with a couple of small pieces of double-sided tape. Reduces the flex and bowing as you plane.

    Be warned it can be hard to get off, so test on scrap first – I use a very thin card scraper and it takes a bit of patience working at it from several angles.

    Cheers, Andy

  42. Colin Scowen on 14 June 2020 at 12:18 pm

    Struggle to see how a thicknesser would remove a curve like that. Seems to me you have not done anything wrong in the use of the thicknessing jig. If the piece is springy enough to flex to the base of the thicknessing jig, then it would probably glue down straight, but that may not be what you want this piece of wood for. If you would like some help with how to flatten this piece, then let us know what you are trying to do with it.

    If you wanted to use this type of jig to flatten a piece, you would be better to put some shim in the middle of the inside of the curve, then put that in the thicknesser jig, then you would be able to take the top off of the curve and start flattening the piece. Then, take the piece out, remove the shim, put two pieces on each end of the outside curve to stop it rocking in the thicknessing jig, and plane material off of the two ends.
    I guess this does not help for the piece you have now, but may do in the future.

  43. Michael Barnes on 22 June 2020 at 8:15 am

    Perfect to accurately thickness kumiko strips and dimensioning timbers to 1/12th scale with a #1 smoothing plane or a block plane.

  44. Warren1948 on 29 July 2021 at 8:24 am

    Could the dimensioning jig be used for longer pieces of wood or is only used for small pieces to be used on projects such as boxes etc?

  45. Chris Ball on 27 December 2021 at 8:37 pm

    I’m late to the party. This is a wonderful idea, Thank you team Sellers again. I’m In the early design stage to use my 4.5 and 5.5. Not sure if ill ever need that width but gives me the option In the future. Im limited on space, so i can’t collect a few of these. Im doing mine out of left over birch ply.

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