Smaller tables can disappoint. A wall-side dining bench can save space without shrinking the tabletop, because it removes the pull-out clearance that chairs need along that edge. The gap matters more. When a dining area feels cramped, the problem may sit behind the seats rather than between the plates.
Your floor deserves scrutiny. Before you replace the table, measure the full seating footprint, including the space occupied when someone pushes a chair back to stand. That space isn't optional. A bench against the wall stays put, allowing you to position the table for seated reach rather than chair movement on that side. Keep the distinction straight. The bench still has depth, and diners still need a way in, so the saving depends on the existing layout rather than the furniture label. Test it with tape. Mark the proposed bench and tabletop positions, then check the route around them.
The trade-off is access. If you sit in the middle of a long bench, getting out may mean sliding sideways or asking another diner to move. Comfort needs checking too. Match seat height and depth to the table, allowing for cushions, and check knee clearance beneath any apron or support. Table legs can interfere. A pedestal may ease entry, but its base can also compete with feet, so inspect the actual combination before buying. Keep your walking route. If the bench preserves your eating surface without squeezing movement elsewhere, why surrender tabletop space to solve a problem behind the chairs?