Has anyone used the new Domino XL to join pressure-treated lumber? I have a custom fence project that requires 2x4 rails joined to 4x4 posts. The rails themselves are connected by pickets, forming a "ladder" strucure. The pickets are also 2x4. A classic mortise & tenon job that would go a lot faster with the Domino, assuming it and its tenon stock are up to the task.
Domino XL Joinery with Pressure-Treated Lumber
- Thread starter Nick C
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- Apr 13, 2011
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Hi Nick
You are going to have to allow for movement, especially shrinkage at the start, unless you are able to get the wood dried out. I used pressure treated wood as the frame for a small garden shed and dominoed the joints. I then used Gorilla glue. If I had been making a fence I would not bother with the glue and allow the joints to move to avoid the structure twisting or buckling.
Peter
You are going to have to allow for movement, especially shrinkage at the start, unless you are able to get the wood dried out. I used pressure treated wood as the frame for a small garden shed and dominoed the joints. I then used Gorilla glue. If I had been making a fence I would not bother with the glue and allow the joints to move to avoid the structure twisting or buckling.
Peter
jmbfestool
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I have made frames and stuff with pressure treated wood and used glue like gorilla glue and failed every time just does not hold. Even gorilla glue has a limit to how moist the wood can be.
The wood moves way to much. Best thing is if you can let it dry out you hav a fighting chance for the glue to work.
If your not going to let the wood dry out don't bother with any glue make it so it can move and hold with out glue.
Jmb
The wood moves way to much. Best thing is if you can let it dry out you hav a fighting chance for the glue to work.
If your not going to let the wood dry out don't bother with any glue make it so it can move and hold with out glue.
Jmb
Suggest using the dominos as you wish but as stated above with no glue. To hold everything together use carriage screws at strategic locations. These will allow movement of the wood. If greater movement is desired then use carriage bolts with washers and nylock nuts. A combination of this hardware could be employed to allow movement in a direction while restricting movement in the other direction. This will give stability and strength while allowing needed movement of the wood. Hope this can help.
Timtool
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- Mar 13, 2011
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I have made plenty of doors and stuff with the XL and pressure treated pine, in this case i use PU glue exclusively because other glue won't dry good enough.
Most often i use custom african hardwood domino's because they can serve for any task.
One time we had to cut 30mm off the bottom of a pressure treated door, so we cut also into the tenon. this was an ideal test piece and it may seem unbelievable but i was not able to break the joint, even after smashing the piece with all my force on concrete repeated times. This was with a pine tenon.
Most often i use custom african hardwood domino's because they can serve for any task.
One time we had to cut 30mm off the bottom of a pressure treated door, so we cut also into the tenon. this was an ideal test piece and it may seem unbelievable but i was not able to break the joint, even after smashing the piece with all my force on concrete repeated times. This was with a pine tenon.
WarnerConstCo.
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- Apr 14, 2008
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- 4,205
First off, good luck trying to make anything that will look nice in 6 months with PT lumber.
The only glue that seems to hold is PL premium.
The only glue that seems to hold is PL premium.
