Timeline for Would 4 post legs work on an 8' x 40" x 1" table?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 11, 2017 at 20:35 | vote | accept | Jacques | ||
| Jun 11, 2017 at 6:39 | answer | added | Ast Pace | timeline score: 3 | |
| Jun 9, 2017 at 13:55 | comment | added | Jacques | Also, I did 30lbs per foot, if I do 30lbs total, the sag is much less. | |
| Jun 9, 2017 at 13:52 | comment | added | Jacques | To clarify, I didn't account for the overhang, and I did evenly distributed weight since there almost never be more than a few pounds (< 10) at any given point. The sag came back acceptable. The "half" I was referring to meant that the sag could double and it would still be "acceptable" | |
| Jun 9, 2017 at 13:24 | comment | added | Graphus | What figures did you use? With the numbers I picked (made some conservative assumptions about overhang because I forgot you'd listed what it would be) the sag is "acceptable" (7/100 inch total) even without an apron and that is with a 30lb centre load which is probably much more than the table will experience in normal use. Add the aprons and you have nothing to worry about as far as loads go — when I plug in the numbers for a 150lb person sitting in the middle (!) I get a total deflection of 1/10 inch which is nothing really, still "acceptable". | |
| Jun 9, 2017 at 12:14 | comment | added | Jacques | @Graphus looks like the sag is half of what'd acceptable. Can you add an answer? | |
| Jun 9, 2017 at 10:13 | answer | added | George Blaine | timeline score: -1 | |
| Jun 9, 2017 at 7:14 | comment | added | Graphus | You're not just supporting the top with the legs, you're supported by the 'skirt' (apron). Plug some numbers into the Sagulator and you'll easily get a good idea of how much deflection you can expect in your proposed design. As the top is made from sapele and maple my gut feeling is you'll be fine here as far as sag goes, stability will be down to how well you make the leg assembly. | |
| Jun 9, 2017 at 2:54 | history | asked | Jacques | CC BY-SA 3.0 |