I recently built a 4 x 8 frame with 2 46 inch 2 x 4's as braces spaced 32 inches from the ends. I'm trying to solve a dilemma where the table is being placed next to a concrete platform in my basement with some wood on top of it and I can't really take any of it out. Would it work if I placed the 1st set of legs to the left corners I have and the other on the brace closest to the left, or to place both sets in the middle where the braces are?
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Just guessing a bit, as it's hard to parse your prose, but legs on a 4x8 need to be near if not at the corners. You'll be leaning on it when working, so long overhangs aren't recommended.
Sounds like you have an obstacle where the fourth leg on this should be? And you say it's wood? Just attach a shorter leg to it with screws at that corner. You won't be able to move the layout, but that's not a good idea anyway when you're one leg short on a set of four.
Mike Lehman
Urbana, IL
hustle_muscleWould it work if I placed the 1st set of legs to the left corners I have and the other on the brace closest to the left, or to place both sets in the middle where the braces are?
It would help if you had a diagram.That said, can you use 5 legs with two being close as possible on each side the troublesome corner? You may have to reinforce the troublesome corner along the joists and/or diagonally up from the new legs.
Chip
Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.
What i'm wondering is if the table can overhang by 32 inches (same space length braces are at).
Here's a rough example of what i'm trying to do:
Okay that is what you have on one side, what about the other side?Can you run braces up at 45 degrees over the wood?
What might work is running plywood in a single inverted L shape every 12 inches or so.
Another thing to look at is use 2" x 4" 's as "joist", on 24" centers, placed in the vertical position on top of your leg framework, with the 2" x 4" joists overhanging what ever distance you need, and on the outside edge of your over hanging area, fasten a 2" x 4" "stiffener" horizontally, just under the edge of the plywood, to keep it all straight. If you can't envision what I'm talking about, I could draw a diagram.
Mike
My You Tube
I'm still unclear, could you post a photo?
matthew
I believe it was the late-great Lynn Westcott (sp) who specified putting legs at the 1/5 & 4/5 distance on lateral L-girder sides to minimize sagging overall throughout the length of the layout. This has worked for me for the last 35 years. Given your run of 98", l would put the legs @ 19" from each end. Happy MRing...JWH
hustle_muscle What i'm wondering is if the table can overhang by 32 inches (same space length braces are at). Here's a rough example of what i'm trying to do:
Yes, what you are proposing will work. Be careful not to lean on the overhang as you can cause tipping. My 5'4"x12' has the legs at both ends set 32" in from the ends with no problems.
Note for stability, the left legs should be braced also - shorter braces can be used.
Good luck
Paul
Linn Westcott suggested that a 1x4 could support a cantilever of 30 inches with minimal sag, so I thing a 2x4 could handle 32 inches. So the legs could go where the braces are???
Co-owner of the proposed CT River Valley RR (HO scale) http://home.comcast.net/~docinct/CTRiverValleyRR/