18 – How to Build A Torsion Box Assembly Table Top (Part 1 of 2)

18 – How to Build A Torsion Box Assembly Table Top (Part 1 of 2)

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How to make a Torsion Box Assembly Table. A method learned from David Marks at http://djmarks.com

When assembling projects, nothing beats a wide and spacious dead flat surface. And one of the easiest and most efficient ways to create a dead flat surface is by constructing what is known as a torsion box. A torsion box is really nothing more than a grid-work with a skin on both sides. This creates a very strong, yet light, structure that resists warping and sagging. Its very similar to the concept behind an airplane wing. This episode covers the construction of the Torsion Box top and Episode 19 covers the construction of the base.

For additional information and a downloadable plan for this project go to the original post on our website: http://www.thewoodwhisperer.com/videos/episode-18-assembly-table-torsion-box/

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50 Comments

  1. Mars on September 21, 2023 at 7:47 pm

    Whycool



  2. Mrdubomb on September 21, 2023 at 7:47 pm

    Do you have a build video on that sweet clamp rack in the background?



  3. donttrustnobody on September 21, 2023 at 7:48 pm

    That’s right just let the old man huff all that MDF



  4. jason wojnar on September 21, 2023 at 7:48 pm

    Where is part 2



  5. V1N 574 on September 21, 2023 at 7:52 pm

    So young and full of life… hahahaha



  6. Victor Sacramento on September 21, 2023 at 7:53 pm

    Congratulations, beautiful work. What is the name of the wood that you have used?



  7. Jeff K on September 21, 2023 at 7:54 pm

    So if you don’t have the jointer and a planer you can’t setup the original working base.



  8. Joe Cagle on September 21, 2023 at 7:56 pm

    How do you replace the top with you’ve glued the sides on



  9. Dennis Fowler on September 21, 2023 at 7:56 pm

    I wonder if my table saw top would be a good reference surface to start with rather than two saw horses?



  10. h hamilton on September 21, 2023 at 7:57 pm

    great video. What is the level of tolerance you’re going for? Nothing is perfect, and i don’t know how flat is dead flat? if your table was a 1/8" out over 4′ would it worry you? 1/32? less? Thanks.



  11. Paul Fischer on September 21, 2023 at 7:59 pm

    For



  12. Lou on September 21, 2023 at 8:03 pm

    🤣🤣🤣 damn bro you were so young back then lmfao sorry, I had to. Still love the channel today 👍🏾👍🏾👍🏾



  13. Thebgp13 Airgun enthusiast on September 21, 2023 at 8:03 pm

    Norm Abrams inspired mine 16 yearsago



  14. Braden Michaud on September 21, 2023 at 8:03 pm

    Here in 2020….been holding on to this build for years, I finally have the time and space to build it 😊



  15. -11BRAVO- on September 21, 2023 at 8:04 pm

    I love how the step dad didn’t have even a cloth mask when cutting the MDF. But the WW looked like he was going into clean Chernobyl.



  16. andYz00m on September 21, 2023 at 8:05 pm

    OH GROSS 240P



  17. Ryan Sewell on September 21, 2023 at 8:05 pm

    I built my workbench very similar to this and am currently remodeling my workshop which means new bench to fit new space. What would be a good price to sell a used one of these at?



  18. Panama Fred on September 21, 2023 at 8:06 pm

    Don’t tell anyone because it is embarrassing, but about twelve years ago I built a 4×8 foot torsion box assembly table. Construction was MDF skins and a pine grid. I put a sheet of plastic laminate on the top. I built it in the high desert of Colorado where the humidity is nil. It was a joy to use as it was dead flat. A couple years later I moved to the mountains of Panama and brought the table with me. Now, with the high humidity here, and the table’s inability to evenly acclimate due to the laminate on only one side, the table is unusable for anything beyond opening paint cans on. I guess if I wanted to build something with a big crown in the middle, then this is the table. I’m about to scrap the thing and make a new bench.



  19. GregInTheCape on September 21, 2023 at 8:07 pm

    I know this is an old video, but it is a great video! Thanks Marc!



  20. The Wood Whisperer on September 21, 2023 at 8:08 pm

    Click here for a higher resolution version: https://youtu.be/GBXf7euDwdk



  21. Angela Slaney on September 21, 2023 at 8:10 pm

    For others thinking of doing something similar, remember to treat both faces of the table the same, otherwise it it likely to warp. That hard-board needed a balancer.



  22. Eddie Espinosa on September 21, 2023 at 8:12 pm

    Why doesn’t your helper wear a dust mask



  23. Chris B. on September 21, 2023 at 8:12 pm

    Now that’s some dust collection on the router! Lol



  24. Stephen Wallace on September 21, 2023 at 8:12 pm

    *Very* late question to this video that I hope you will be able to see and answer. My 14 year old son wants to start woodworking, and I thought that building a proper assembly table to replace my old, warped table would be a great first project. The question is whether or not this type of table can be made to host both a tail vise and face vise. Do you have any ideas or tips?



  25. p39483 on September 21, 2023 at 8:12 pm

    Why is your MDF light colored like particle board? My MDF is dark, very heavy, and made of fine fiberous dust. A long time ago I built speaker boxes from a product marketed as MDF that looked like your MDF. But now that I look at it, it looks like what’s sold as particle board.



  26. Kyle Woodrome on September 21, 2023 at 8:13 pm

    Are you still
    Using this setup!?



  27. Coolboater1 on September 21, 2023 at 8:13 pm

    Hey Mark. I followed your guidelines, but instead of sawhorses, I used an existing table bottom, and levelled out 4 2×4’s on the jointer and planer, and using the Lee valley calibrated straight edge, I levelled these in both directions, and hot melt glued them to the base. After assembling the egg crate interior. I glued the bottom 1/2" mdf, flipped it over and edge screwed the other skin with #5 flat screws. The table is 7′ X 4′. When I tested the levelness, along the length , with the 4′ straight edge, it was 0.045 thou lower in the middle than the ends of the straight edge, which, were of course, 1.5′ from the table ends. Using straight 1.5" (2 pieces of 3/4" med glued together) mdf, 7′ long, from my flattening rig, it will be out a bit more. Is this " flat" adequate, or should I start again. Should it be better than this? I’m thinking "yes".
    I cut all the dividers at once on the same table saw setup.



  28. OpiateTaylor41 on September 21, 2023 at 8:14 pm

    I’m going to build this entire project using only the dowelmax.



  29. WeGoWalk on September 21, 2023 at 8:15 pm

    You probably should’ve left those screw holes “unplugged,” because that way you could’ve easily removed those side boards when you want to install a new hardboard top.



  30. ArtDzenCrafts on September 21, 2023 at 8:16 pm

    Is it old dad really, or it is a robot, without the dusk mask??



  31. E Caff on September 21, 2023 at 8:16 pm

    Excellent video and process. Thank you for sharing.



  32. Tim Pedzinski on September 21, 2023 at 8:18 pm

    I guess we are not concerned with our helpers lungs. Not even a dust mask.



  33. Олег Булкин on September 21, 2023 at 8:20 pm

    You do have to spend some time setting the saw up… blade, fence, etc. But once done, the saw is great. Fairly compact which is Nice https://www.youtube.com/post/UgkxXh-4_3-ZT1fFWP91ZV7iVqzElr0lEb-a I did get an Incra Miter Gauge which takes some setup as well. The stock miter gauge can be adjusted in the miter slot with a little painter’s tape… this tightens up the side to side play a lot.



  34. Joseph Martinez on September 21, 2023 at 8:20 pm

    The ancient YouTube. Love the sound patch



  35. Jacob Helber on September 21, 2023 at 8:21 pm

    Thanks for the amount of time and detail you put into your videos. PS Nice sideburns from back in the day.



  36. gizanked on September 21, 2023 at 8:22 pm

    So cheesy, gonna have to change your name to kraft marc-aroni and cheese. Trying to be like that Cremona guy or something?



  37. Hank Pikuni on September 21, 2023 at 8:25 pm

    DIY for millionaires.



  38. Kodi Goins on September 21, 2023 at 8:26 pm

    Mark, look out. At 2:46 a ghost opened up your cabinet door to show you a sign. We didn’t see you move, so we know it’s the ghost of Milled wood past.



  39. Dmitriy Lobov on September 21, 2023 at 8:27 pm

    So, to get a perfectly flat surface all we really need as the most basic step is a joiner. Hmm… I was hoping for a cheaper option, to be honest.



  40. Matt on September 21, 2023 at 8:30 pm

    he called the Festool track saw a circular saw with a straight edge



  41. Charles J Gartner on September 21, 2023 at 8:31 pm

    16:28 not seeing what a second skin does? The piece is totally ridged and already overbuilt as far as strength and flatness.



  42. How I Do Things DIY on September 21, 2023 at 8:32 pm

    Beautiful table, man! I love your channel!



  43. Joe Brikha on September 21, 2023 at 8:32 pm

    Excellent table top but a 3/4" edge that is about 3 inches wide would have allowed clamping work down without reducing its torsion property.



  44. Go fast 13 on September 21, 2023 at 8:34 pm

    Hi does anyone know anyone who builds and sells Torsion box workbenches looking for a good dead flat work surface for a work bench any help appreciated



  45. Cole Johnson on September 21, 2023 at 8:34 pm

    And how exactly does one easily replace the top once it’s beat up? Please, this is why I watched the video but I just don’t see the answer.



  46. metals on September 21, 2023 at 8:36 pm

    What would you recommend for a steel cutting saw, I am currently researching saws such as evolution rage 3 or 4, or possibly the makita.



  47. U Do It on September 21, 2023 at 8:36 pm

    I’m looking to do this for a large format DIY CNC. Just watched the entire video. Thanks.



  48. Eric Newport on September 21, 2023 at 8:41 pm

    I plan on building the cabinet base and using that to level for the torsion box build. Does anyone see issues with using the base vs saw horses?



  49. fletch989 on September 21, 2023 at 8:43 pm

    What kind of vegetable was this video recorded on?



  50. Wayne Holmes on September 21, 2023 at 8:43 pm

    I am a retired mechanical engineer who worked in aviation. WE use torsion boxes to provide structure that isn’t heavy…aka save weight. So I ask/invite debate…why is a torsion box any better than say butcher block for a flat assembly table.