Thanks for all the replies!
I didn't realize that Sketchup was not commonly used, apologies.
Here are some pictures of the finalized plans for the surface, after some adjustments:
Final measurements (hope to start actually cutting this weekend):
- 4 corner legs from 90mmx90mm (almost 4x4), at 90cm (~35.5") height. These have half the width of the 2x4 (in my case, 23mm) cut away so that it sits nicely.
- 2 mid legs from 90mmx90mm, same 90cm height, but with cuts for the full 2x4 to pass through
- 4 long side ... skirts? braces? of 45mmx95mm (almost 2x4), at 2.4m (~7' 11") length
- 4 short side skirts/braces of 45mmx95mm, at 80cm length (~31.5")
- 4 additional supports that are simple 71cm length 45mmx95mm
All skirts/braces are have mitered edges to 45 degrees, and a slot that is half their width on the short side. That way they can slot together and be flush with the edge of the legs (or so I hope).
Soo.... some insight I'd love from the more experienced (aka everyone?) people around:
- I'm wondering whether I need some extra supports on the lower side to match the upper side.
- The joints should be sturdy enough, especially if glued together. But do you think that just screws might pull it off?
- I was thinking of using thin (1/2" or 12mm ) plywood for the bottom shelf, and thicker (1.25" or 32mm) plywood for the top. Does that sound reasonable?
- If I were to put the whole thing on casters, apart from shortening the legs would it need any further modification? What weight rating is normally applicable to things like this? Was thinking of 150kg ( 330 pounds ) per caster should do the trick...?
Also please let me know if I've messed up the names of things in the above text, still learning.
Thank you in advance!