Just curious about what you do for the base and the rail? I am considering a second, likely round table, and have just about settled on ~ 56" round table, which would give ~22" per seat 8 handed, with the ability to squeeze 9, if we want it tight (just under 20"/person).
Now, the obvious choice, plywood, comes in 4x8 sheets, not ideal for for something greater than 48". I have been doing a bit of searching, and have come across scarf joints (easy enough in theory, but would require some sort of jig), the thought of laminating 2x4s that are ripped in half was a thought, to get a surface big enough to cut a 56" circle from. It seems that end joinery with dowels could work, but a 3/4 inch sheet of plywood doesn't give you much room, especially since it is not solid lumber such as a 2x4, but rather layers.
I have found a store within driving distance that does have baltic birch ply in 60x60 sheets, which are ideal, but ~1/2 sheet is $32, while 3/4 is $60. I think 2 sheets of 3/4 would be overkill (rail cutout will be used as 2nd table layer), and a bit more $$. Two 1/2" sheets could be had for the 3/4 price, and would allow for a table surface of ~1". For a round table on a pedestal type base, does that give enough strength, or would it be better to do 3/4" for the surface, 1/2" for the rail?
Now, the obvious choice, plywood, comes in 4x8 sheets, not ideal for for something greater than 48". I have been doing a bit of searching, and have come across scarf joints (easy enough in theory, but would require some sort of jig), the thought of laminating 2x4s that are ripped in half was a thought, to get a surface big enough to cut a 56" circle from. It seems that end joinery with dowels could work, but a 3/4 inch sheet of plywood doesn't give you much room, especially since it is not solid lumber such as a 2x4, but rather layers.
I have found a store within driving distance that does have baltic birch ply in 60x60 sheets, which are ideal, but ~1/2 sheet is $32, while 3/4 is $60. I think 2 sheets of 3/4 would be overkill (rail cutout will be used as 2nd table layer), and a bit more $$. Two 1/2" sheets could be had for the 3/4 price, and would allow for a table surface of ~1". For a round table on a pedestal type base, does that give enough strength, or would it be better to do 3/4" for the surface, 1/2" for the rail?