I would consider buying used. A good solid wood dining table lasts generations and lots ended up in consignment shops and estate sales. More on reddit.com

We are doing a kitchen/diner renovation and the large diner area means we would comfortably fit a 10 seater table. I want to find one that is fixed ra... More on mumsnet.com

A few thoughts…. 1)Your apron will need to be substantial since it bears the load of the tabletop. I wouldn’t make it any less than 6” and a full 1” thick. 2) Your apron will require several cross members between the sides. Some 45’s at the corners wouldn’t be a bad idea either. 3) C channels are mostly gimmicky. If the lumber was dried and milled properly and your assembly techniques are good, you won’t have any issues with cupping. 4) 4’6”? Are you sure?? That’s HUGE. I think the last dining table I made was 31” wide. 5) Z clips are fine for smaller things, this table would probably benefit from something more robust. You can drill up through cross members and put threaded inserts into the table top. This requires widening the hole in the cross member to account for seasonal movement. Look up how they attach install windows in log cabins. Same concept. More on reddit.com

I am looking for the exact same thing!! I'd settle for one that maxes out at 8 people. They are SO hard to find, I've scoured the internet and local antique/used furniture places with no luck. I've also decided against the Transformer Table (although every time I get frustrated about not being able to find what I want I revisit it, only to be re-convinced that I don't want it). I want a lifetime table, and my impression is that these are not durable. If they were made out of good, solid wood they would cost 2-3x as much. The only one I've found that fits the bill is this one from West Elm: https://www.westelm.com/products/anderson-expandable-dining-table-h2545/ Please update with any others you find! I'm located in the Twin Cities, MN. More on reddit.com