Darryl Keil Last Activity 2026-01-12 8:29 AM
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Kim Carleton Graves

 
Subject : Large panels for conference table
Posted : 1999-12-20 4:58 PM
Post #30357
Hi Darryl,I'm bidding on a conference table which will be 12' long by 4'-7" wide. I though I would make a torsion box and then veneer both sides. I assume VPS can sell me a bag big enough for the job. Where do I get a panel large enough for each side of the table? Or, is there a way to piece MDF so the seams don't telegraph through. The largest dimension sheet good I can find is 4 by 10 and that's in ply, not MDF. Can I use pieced ¼" MDF on a torsion box without having it implode? Do you sell a corrugated product that can be used for the baffle? Thanks for your help.Am I on the right track here or is there another way to do this work? Kim Carleton GravesCarleton Woodworking



 
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Darryl Keil

 
Subject : Large panels for conference table
Posted : 1999-12-20 6:34 PM
Post #30360 - In reply to #30357
Dear Kim,A torsion box for a confrence table is an excellent idea and many large tables are done this way. The way do deal with your joint problems is to lay a cross banding of veneer on the table underthe face veneer. This will protect the substrate joints from telegraphing through to the faceveneer. Also use a hard glue like Urea resin or epoxy for the ply joints since these glues haveno cold creep.1/4" mdf or ply as the skins are fine. And yes we have honeycomb core material and can makeyou a custom bag.SincerelyDarryl Keil: Hi Darryl,: I'm bidding on a conference table which will be 12' long by 4'-7" wide. I though I would make a torsion box and then veneer : both sides. I assume VPS can sell me a bag big enough for the job. Where do I get a panel large enough for each side of the : table? Or, is there a way to piece MDF so the seams don't telegraph through. The largest dimension sheet good I can find is 4 : by 10 and that's in ply, not MDF. Can I use pieced ¼" MDF on a torsion box without having it implode? Do you sell a : corrugated product that can be used for the baffle? Thanks for your help.: Am I on the right track here or is there another way to do this work?: Kim Carleton Graves: Carleton Woodworking




 
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Kim Carleton Graves

 
Subject : Follow up questions
Posted : 1999-12-21 9:46 AM
Post #30364 - In reply to #30360
Hi Darryl,That's good news - that I can piece the skin. The price I got for a custom panel was $1500 per panel times two! A couple of follow up questions: do I need to veneer both sides of each skin like you normally would, prior to attaching them to the torsion box? Or will the glueline on the backside act to stabilize the panel? What's the sequence for doing the veneer? Do I make a two-ply and then veneer it or put the first layer of veneer down, sand, then the second layer? How do you use the honeycomb? The tabletop is going to cantilever off the trestle base. I assume I need to build supporting members into the torsion box for support that and then fill the remaining spaces with the honeycomb. Is that correct? Do I simply put glue on the skin and put the honeycomb on top of that?So the total sequence is:1) veneer the backing veneer onto both sides of the skins (or only the face side)2) make the torsion box3) put glue on the bottom skin4) put the torsion box on the bottom5) fill spaces with honeycomb6) glue the top skin on7) press in the bag8) sand9) press the face veneer.Is that right?Thanks once again for all your help.Kim Carleton Graves Carleton Woodworking




 
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Darryl Keil

 
Subject : Follow up questions
Posted : 1999-12-26 7:07 PM
Post #30372 - In reply to #30364
Dear Kim,Basically you have got it except put #1 where #8 is, which means put on your sub veneer after the table top has been made. I dont recommend making a two ply on such a large surface, the veneer will curl like crazy when your applying the glue. Better to apply the subveneer to the table top and then press the face veneer in a second operation. Also you wontneed a veneer on the inside of each skin since your pressing the veneers on after the tablehas been assembled with the honeycomb.SincerelyDarryl Keil: Hi Darryl,: That's good news - that I can piece the skin. The price I got for a custom panel was $1500 per panel times two! : A couple of follow up questions: do I need to veneer both sides of each skin like you normally would, prior to attaching them to the torsion box? Or will the glueline on the backside act to stabilize the panel? : What's the sequence for doing the veneer? Do I make a two-ply and then veneer it or put the first layer of veneer down, sand, then the second layer? : How do you use the honeycomb? The tabletop is going to cantilever off the trestle base. I assume I need to build supporting members into the torsion box for support that and then fill the remaining spaces with the honeycomb. Is that correct? Do I simply put glue on the skin and put the honeycomb on top of that?: So the total sequence is:: 1) veneer the backing veneer onto both sides of the skins (or only the face side): 2) make the torsion box: 3) put glue on the bottom skin: 4) put the torsion box on the bottom: 5) fill spaces with honeycomb: 6) glue the top skin on: 7) press in the bag: 8) sand: 9) press the face veneer.: Is that right?: Thanks once again for all your help.: Kim Carleton Graves : Carleton Woodworking
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