Compaction on a construction site is done with three hired machines: a plate compactor at roughly $60 to $110 a day, a rammer at about the same, and a ride on roller from $250 to $600. Which one you need is decided by the soil and by how thick a layer you are placing, not by the size of the job.
Plate, rammer or roller is a soil question
Vibrating plates suit granular fill, sand and gravel, and they finish paving. A rammer delivers impact into cohesive clay and silt and into trenches too narrow for a plate. Rollers cover open area quickly, smooth drum for granular and padfoot for clay. Mixing them up is the usual reason a base fails a density test.
Lift thickness is the number that matters
Every machine has a depth it can influence, and material placed thicker than that compacts on top and stays loose beneath. Place in layers matched to the machine rather than filling the trench and hoping. A reversible plate reaches deeper than a forward plate, and a rammer deeper still in narrow ground.
Vibration and noise come with the hire
These are among the loudest and harshest machines on a small site, and both effects are cumulative over a shift. Federal noise rules put duties on employers once exposure passes the action level, which is why yards hire ear defenders beside the plate. Rotating operators through the work costs nothing and helps more than any accessory.
Delivery, fuel and the minimum charge
A plate or a rammer fits in a pickup and is often collected rather than delivered. A ride on roller needs a trailer and is charged both ways. Fuel is returned full or billed at the yard's rate, and most counters apply a minimum hire of a day even where the job takes two hours.
Questions people ask about compactor construction
What size compactor do I need for a patio base?
A single direction plate in the lighter class handles bedding sand and a thin base under slabs. Once the sub base runs several inches deep, place it in layers and use a reversible plate, which drives its energy further down.
Can I compact a trench with a plate compactor?
Only a narrow trench plate will fit, and in clay a rammer does the work better because it delivers impact rather than vibration. Trench compaction is also where lift thickness discipline matters most, since nobody sees the loose layer you left below.
Is a roller worth renting for a driveway?
For a domestic driveway, a reversible plate usually does it. A walk behind or ride on roller starts to pay once the area runs into the hundreds of square yards, or where a specification names a density the plate will not reach.