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29-07-2020, 20:14   #1
Macker
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Securing a bench top

hi ,I want to secure a top to my work bench ,its an old bench made from 70x140 mm wood ,the bench top is 72mm MDF ,I dont want anything like L brackets unless they are pretty solid and I don't want to screw from the top ,I dismissed glue at first in case I wanted to change it at some point but I think 72mm MDF will out last me ,any ideas
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29-07-2020, 20:32   #2
Calahonda52
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is there an existing top on the bench?
If so and it's flat with good bearing you could dowel it vertically, or of know someone with a domino , drive a bunch of domino tenons down through the mdf into the underneath.
You could fill any imperfections underneath with silicone which would not really stick so would be removable.
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29-07-2020, 21:54   #3
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Quote:
Originally Posted by Calahonda52 View Post
is there an existing top on the bench?
If so and it's flat with good bearing you could dowel it vertically, or of know someone with a domino , drive a bunch of domino tenons down through the mdf into the underneath.
You could fill any imperfections underneath with silicone which would not really stick so would be removable.
No I took off the old top which was just 3x2 well rotted so Im just working with the frame
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30-07-2020, 11:55   #4
Calahonda52
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well you could glue and screw 2 by two underneath and screw to side of frame
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30-07-2020, 17:13   #5
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Originally Posted by Calahonda52 View Post
well you could glue and screw 2 by two underneath and screw to side of frame
That sounds like the easiest method ,if I can find my pocket hole jig I might try that
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30-07-2020, 21:41   #6
Calahonda52
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pocket screws will be too fine a thread.
I would be thinking 6m spax or even 8mm coach screws, with exact size pilot holes for a savage grip
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31-07-2020, 06:43   #7
chillyspoon
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That sounds like the easiest method ,if I can find my pocket hole jig I might try that
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pocket screws will be too fine a thread.
I would be thinking 6m spax or even 8mm coach screws, with exact size pilot holes for a savage grip
You could easily combine those two ideas - pocket holes followed by pan head larger thread screws. That'd work grand.

Something I haven't picked up in the thread Macker, is why you're opposed to L brackets?

In my case, my bench is topped with a laminated 2 sheet layer of high density 18mm MDF and I attached it from underneath (to the 2x4 frame) with 6 L-brackets that are about 30mm length by about 12mm wide and I think about 3mm stainless steel. The frame supports the weight of the bench top, it doesn't budge and the top can be removed in 5 minutes.
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31-07-2020, 07:45   #8
listermint
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pocket screws will be too fine a thread.
I would be thinking 6m spax or even 8mm coach screws, with exact size pilot holes for a savage grip
You don't have to use a pocket screw in a pocket hole
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31-07-2020, 20:20   #9
Calahonda52
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You don't have to use a pocket screw in a pocket hole
or even a screw
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