Sorry FYB, meant to ask - why did you need to replace the sod?
both back and front yards were a mess. Clumpy, uneven, different grass types, different thickness, etc
They came in with mobile equipment and ripped it all up, put down top soil, evened it out, and then put the sod down. Aside from looking better, we can now play decent games of croquette, lawn bowling, etc. Also easier to maintain.