The answer to 'difference between sod installation' is that sod and seed installation are two different methods for establishing a new lawn. Sod involves laying pre-grown grass that has been harvested from a farm or nursery, while seeding involves spreading grass seed directly onto the soil and allowing it to germinate and grow. Sod provides an instant lawn, but is more expensive. Seeding takes longer to establish but is generally less costly.
The main differences between sod and seed installation are the upfront cost, time to establish, and maintenance requirements. Sod is more expensive but provides an instant, mature lawn. Seeding is less costly but takes 4-8 weeks to fully germinate and establish. Sod requires less initial maintenance, while seeded lawns need more watering and weeding during the establishment period.