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Post by atsda on May 8, 2024 17:56:44 GMT
It is about time to build the benchwork for my new layout, and get the tracks up off the floor. (It is getting difficult to get up and down, and my wife wants me to stop stepping on the tracks and knocking cars off.)
Here is what I had in mind. Your comments are welcome.
The tabletop will be no greater than 7’ x 15”
I will use 7/16” OSB
The support will be two 2” x 4” x 12’, that will be supported on six 32” 4” x 4” legs at corners and middle. Two 5 ½” 2” x 4” will join and separate the legs and top 2” x 4”s. The OSB overhang on the ends would be 18” (across a 5’ length), anywhere else would be between 6” and 12”.
The estimated cost for lumber and hardware would be about $225.
Thanks. Alfred
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Post by runamuckchuck on May 8, 2024 18:12:50 GMT
Strictly from a carpentry standpoint, the 12" and especially the 18" overhang using 7/16" OSB seems a bit too much overhang at least to me.
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Post by steveoncattailcreek on May 8, 2024 19:42:42 GMT
Strictly from a carpentry standpoint, the 12" and especially the 18" overhang using 7/16" OSB seems a bit too much overhang at least to me. Yeah, I agree. I used half-inch OSB on both my current layouts (with a half-inch foam sheet topper), but the overhang is only roughly six inches max, and I'd be inclined to recommend not exceeding that. I used foam pipe insulation to protect the edges:  Also, the 2 X 4 framing, and the 4 X 4 legs, strike me as overkill (unless you plan to walk on top, in which case the 7/16" OSB seems a bit light). I think 1 X 4 framing and 2 X 2 legs should do you just fine, at about a third less weight -- especially important if you have any thoughts about moving the layout (in which case adding casters or wheels on the legs might also be a good idea). In any event, good luck with the project!
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Post by josef on May 8, 2024 20:33:41 GMT
I agree with the above statement. 2x2s for legs and 1x4s for framing and center supports. 7x16 is light and may warp. I used 3/8" plywood marine grade,for my top and with framing and using for centers every 24 inches I can even walk on it and have stood on it all around. I forgot the name, mind blank, but I added leveling screws to bottom of my legs. I then glued styrofoam on top for my rails and land contour.
But 4x4 is overkill and costly were 2x2s will do.
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Post by JDaddy on May 9, 2024 14:58:10 GMT
It is about time to build the benchwork for my new layout, and get the tracks up off the floor. (It is getting difficult to get up and down, and my wife wants me to stop stepping on the tracks and knocking cars off.) Here is what I had in mind. Your comments are welcome. The tabletop will be no greater than 7’ x 15” I will use 7/16” OSB The support will be two 2” x 4” x 12’, that will be supported on six 32” 4” x 4” legs at corners and middle. Two 5 ½” 2” x 4” will join and separate the legs and top 2” x 4”s. The OSB overhang on the ends would be 18” (across a 5’ length), anywhere else would be between 6” and 12”. The estimated cost for lumber and hardware would be about $225. Thanks. Alfred Are you looking to do something temporary ? If so Lowe and Home Depot have some nice fold up tables that are great for setting up in a room and taking down.
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Post by atsda on May 15, 2024 16:34:18 GMT
John (JDaddy), The layout will be "permanent', that is, as long as I am. Within the next few days, I will get the track up off the floor, and use large panels of cardboard boxes placed on the floor as a template. I want to see what the 'walk around' space will be around the layout. I am trying to maximize the size of the tabletop. I am looking to do a 7' x 7' section joined to a 6' x 8' section. I would like to have two nested concentric loops nes around the perimeter with the wide radius O72 curves and long straightaways. Alfred
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