To build a strong bench, you have to build into the structure reinforcement. I have welded (connected) numerous small pieces, of rebar, to the legs for stability. To build a strong marriage, you will have to work at staying connected, have date nights, hold hands when ever possible. Talk to each other about your connections and how you can build more. You can’t have too many.

legs reinforced (connected) with small pieces of rebar. 

The top of the seat will be covered with pig wire. Pig wire is super strong  

Picking a piece of pig wire big enough to cover the seat.  

The pig wire fits.  

In order to protect the feet of the legs I weld a stainless steel washer underneath the rebar. Every marriage needs a strong footing as does every bench.