joinery - Attaching Legs to a Table - Woodworking Stack Exchange
Build Your own X-Leg Outdoor Table - Honeybear Lane
DIY LEGS // Wooden Straight Dining Table / Bench / Coffee Table Legs - Set of 4 | eBay
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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.
4x4 Post Support Pro Version Table Leg Bracket (Actual Size 3.5"x3.5") Post and Screws NOT Included! - Amazon.com