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Lumber Cart fittings

1K views 6 replies 6 participants last post by  rwe2156 
#1 · (Edited by Moderator)
Hi All,

I'm in the process of making a scrap lumber cart out of 3/4" plywood the overall dimensions is 48"Lx 24"W x24"H, I am thinking of using pocket hole screws to join the back to the sides, do you think this method is strong enough… Also there are bin devises also 3/4" but MDF .. I was going to use the same method here as well

I've used pocket joinery before but this is by far the biggest project using this system…

I can't use rabbit and dado joinery as my router is out of commission and I don't want screws showing outside on the face of the cart…

Any tips or advice is welcome

A picture of what I'm trying to build is below….

Wood Rectangle Hardwood Wood stain Art
 

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#3 ·
I used pocket hole joinery in this plywood rack: http://lumberjocks.com/projects/100618. It s made from osb plywood and it s full as you can see. I wouldn t use mdf in my opinion.

- Roger
Hi Roger,
Sorry I wasn't clear the whole is made from 3/4" plywood, only the cubby dividers are MDF… Thanks for the info
 
#6 ·
Ed, I would concur with two of the above comments:
Roger is right on with the MDF, it tends to split when screws are driven into the edges.
MNclone is correct on the strength and simplicity if the screws are driven straight through.

I f you don't wish to see the screws on the finished project, try countersinking the heads and plug the screw heads. The plugs would have to be cut from solid wood (not Ply) so they would probably be noticeable unless you paint the project.

When you get ahead ($$$$), a dadoed blade for your TS is a nice addition for joining casework.
 
#7 · (Edited by Moderator)
Hi All,

I am thinking of using pocket hole screws to join the back to the sides, do you think this method is strong enough… Also there are bin devises also 3/4" but MDF .. I was going to use the same method here as well

I ve used pocket joinery before but this is by far the biggest project using this system.
I wouldn't use pocket holes in plywood, especially something like this where there are a lot of stresses.

I can t use rabbit and dado joinery as my router is out of commission and I don t want screws showing outside on the face of the cart…
That's your best joint. Use your table saw. It's faster anyway.

Don't use flat head screws they tend split the plywood. Use plenty of glue.
Remember this is a construction project strength is the first consideration.
Don't let a visible screw head bother you.

Good luck.
 
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