I have a lot of space and want neat design for a glass table. I have designed a table which will have:
- legs- 4 oak\beech, 3" x 3"
- frame on top of the legs - 8' long of 40mm (1 9/16) steel angle
- tabletop - glass of 1/2", 9' long and 3' wide
I want to have a cut across the legs and push the angle beam into the legs, and have them on the same plane as the wood legs (please see a picture below for example) In each leg, 2 holes will be drilled and will fix the steel beam with 3/8 bolts and washer. In the last 2 pictures you can see the entire table and the cross-section of the table legs. The glass tabletop will be glued across the entire steel beam, so although the glass tabletop weigh 200lbs, there will be a lot of contact point and I see no problem around here.
I believe this should be strong enough for both the base load and to avoid racking. I am not worried on racking on the long side, as the steel angle will function as aprons, and be joined in bolts to the wood leg.
I am worried about racking on the short side, as it is could break (the bolt will be installed only 1" from the end of the leg. I liked @Aloysius Defenestrate idea of drilling a hole and welding a rod\conduit for strength, I am just not sure that this metal rod\conduit will not also bend.
How would you advise (other than a model - great advise!) to hanle with racking on the shorter side?