Having a big bench is not about a "chest" day as the bench press encompasses far more than the chest as the primary movers. How much can you row? What are your accessory lifts to make your bench better? Where is your sticking point?
For example, here's my template for my Max Effort bench day:
Bench
Work up to prescribed max set for the day
Supplemental lift
Either floor press, flat DB press, or paused presses
Lats/triceps/upper traps