A driveway or patio is only ever as good as the ground beneath it. At GR8 Tool Hire we see the results of both approaches: the jobs where the ground was properly compacted and still look flat and solid years later, and the ones where that step was rushed and the surface has since sunk, cracked or started to hold water. Compaction is the quiet, unglamorous stage that makes the difference, and hiring the right kit makes it straightforward.
This guide explains the compaction equipment we hire, wacker plates, trench rammers and rollers, and how to choose between them for driveways, patios, paths and general groundworks.
Why compaction matters
When you lay hardcore, a sub-base such as MOT Type 1, or sand under block paving, it is full of tiny air pockets. Left alone, that loose material settles over time, especially once vehicles start driving over it or rain works its way through. The result is a dip here, a cracked slab there, or a puddle that never quite drains.
Compaction squeezes those air voids out and locks the material together into a firm, stable base. Done properly, and in the right layers, your finished surface has something solid to sit on, which is exactly what stops it moving later. It is one of the cheapest bits of insurance you can buy on a paving or groundworks job.
Wacker plates (plate compactors)
A wacker plate, or plate compactor, is the workhorse of most driveway and patio jobs. It is a walk-behind machine with a heavy vibrating base plate that compacts as you guide it forwards, ideal for sub-bases, granular fill and bedding sand, and for settling block paving into place.
We hire them in different plate widths, and the right one mostly comes down to the space you are working in and the area you need to cover. A narrower 12 inch wacker plate is easy to manoeuvre around tight paths, borders and smaller patios, while a wider 20 inch plate covers a large driveway far more quickly. If you are somewhere in between, our 16 inch plate is a sensible middle ground. As a rule, use the widest plate that still fits comfortably in your working space.
Trench rammers for narrow work
Some jobs are simply too narrow for a plate to reach. When you are backfilling a trench around a pipe, a drainage run or a strip footing, a trench rammer is the tool for the job. Its narrow foot delivers a powerful downward blow that compacts deep, confined fill a plate cannot get into. If your project involves trenches as well as open ground, it is common to hire both a rammer and a plate together.
Rollers for larger areas
Once you are working across bigger areas, a roller becomes the faster and less tiring choice. Our twin drum ride-on roller is the machine to reach for when you are levelling and compacting a large driveway, a sizeable patio base, a private road or a long stretch of hardcore. You sit and drive rather than walking behind a vibrating plate for hours, which on a big area saves a great deal of time and effort.
Which one do you actually need?
Here is the simple version we give customers at the counter:
- Block paving, a small patio or a path: a wacker plate, sized to the space.
- A standard driveway sub-base: a wacker plate for most homes, stepping up to a roller if the area is large.
- Backfilling a trench around pipes or footings: a trench rammer.
- A large driveway, private road or big groundworks area: a ride-on roller.
Getting a solid result
Whichever machine you hire, a few habits make all the difference:
- Work in layers. Compact your sub-base in shallow layers rather than one deep one, so the machine can firm up the full depth.
- Compact twice for block paving. Once on the sub-base, and again over the laying sand once the blocks are down. Slightly damp sand compacts best.
- Wear the right protection. These machines vibrate and are noisy, so sturdy boots, ear defenders and eye protection are a must.
- Do not fight wet clay. Very wet, soft ground will not compact well, so let it dry or sort the drainage first.
Delivery, hire periods and prices
We hire compaction equipment by the day, the weekend or the week, and we can deliver and collect if you would rather not transport it yourself. You will find current rates on the GR8 price list, and if you are not certain which machine suits your job, get in touch with the team in Cambridge, Bishop's Stortford or Saffron Walden. Tell us what you are laying and how much ground you are covering, and we will point you to the right kit to get you onto solid ground.
