I am building a island dining table base (quartz top 36x70"), it's pretty top heavy. but I framed legs with 4x4 and lag bolt/pocket screwed 4x4 as center beam and 2x4 support.
3 Ways to Attach Table Legs - wikiHow
Reclaimed Wood Dining Table on 4x4 Legs & Bench Set the Santa Fe, Mid Century, Rustic, Farmhouse, Santa Fe - Etsy
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lag / bolt table legs to frame - General Woodworking Talk - Wood Talk Online
Table base using a 4x4 lumber with 10 deg cut. | Diy furniture table, Wood furniture diy, Diy table legs
4- Salvaged Black Walnut Kiln Dried 4x4 Wood Blanks/Table Legs 9107 – Lumber Shack
Note the 4x4 legs are plenty strong to support this 4x6 table without the typical bracing on the low… | Diy farmhouse table, Diy garden furniture, Diy kitchen table
Dining Height, Solid Wood Rectangular Table With Custom X Metal Leg Base With 4x4 Beam, ,choose From Size and Finish FREE Shipping - Etsy Hong Kong