Equipment access: measure before you quote

A gate measurement can change a clearing price more than an acre does. Access does not add cost; it changes which machine can work at all, and that changes the production rate for the whole job.

Published by the Land Clearing Authority editorial team · Last revised 2026-07-29 · Editorial policy · Corrections

Who this is for

Anyone with a property that is not open to the road
People whose quotes came back higher than expected
Landowners preparing to request quotes and wanting them to be accurate

The short answer

Machine size drives production rate, and production rate drives cost. Anything that caps machine size — a gate, a bridge, a low span, a soft crossing, a turn — caps the rate and lengthens the job.

Measuring five or six things before you request quotes makes those quotes considerably more accurate, and stops the price changing on the first morning.

What changes the answer

The narrowest point anywhere on the route in
Overhead clearance along the whole route, not just at the entrance
Ground conditions on the route and in the work area
Any crossing, and whether its capacity is known
Where a transporter can turn around
What is within reach of the working area

The measurements worth taking

None of these needs equipment beyond a tape measure and half an hour, and they materially improve every quote you receive.

Narrowest width on the route in — usually a gate, a bridge, or a gap between buildings
Lowest overhead clearance — lines, branches, a span, a barn doorway
Length and surface of the route from the public road
Any crossing: bridge, culvert, ford, or soft spot
Turnaround space for a truck and trailer
Distance from where a transporter can unload to the working area
Slope on the route and in the work area

Why the gate is the whole conversation

Machines come in size classes, and each class has a width. A route that admits a large machine admits a fast job; a route that admits only a small one admits a slow job on the same acreage.

That is not a surcharge — it is a different production rate applied to the same work. A contractor who knows the constraint prices the right machine. One who does not may arrive with equipment that cannot get in, which costs a mobilisation and delays everything.

If a gate can be temporarily removed, or a section of fence taken down and reinstated, say so. It can change the machine class and be worth far more than the cost of the fencing work.

Overhead is measured along the whole route

People check the entrance and forget the rest.

Machines travel on trailers, and a loaded trailer is tall. Low branches, a barn doorway, a bridge deck, or a line crossing the drive can each stop a delivery that the gate width would have allowed.

Utility lines are the case that matters most. Clearance requirements around energised lines are set by the utility and by safety regulation, not by the contractor, and working near them may require the utility to be involved. If lines cross the route or the work area, contact the utility before scheduling.

Ground conditions decide the season

Access is not only about geometry. A route that is fine in August may be impassable in March.

Heavy machinery on soft ground ruts, and ruts are damage you may have to repair. A contractor who says they would rather work your ground in a particular season is usually protecting your property as much as their schedule.

Agree in advance what happens if the ground is unworkable on the scheduled day — who bears the cost of the wasted mobilisation, and how rescheduling works.

Crossings need real answers

A bridge or culvert on the access route is a load question, and "it has always been fine" is not a load rating.

Farm bridges and private culverts frequently have no documented capacity. A machine on a trailer is a concentrated load considerably heavier than a pickup. If the route crosses one, raise it early — the contractor may need to unload before the crossing and walk the machine over, which is a real cost but a smaller one than a collapsed culvert.

What is within reach matters too

Access is about getting in. Working room is about what happens once the machine is there.

Equipment that reduces material in place throws debris. Structures, vehicles, glass, livestock, and neighbouring property within range change the method along that edge regardless of what is used elsewhere. Fencing, wellheads, septic fields, and irrigation are all things a machine can damage without anyone intending it.

Walk the working area and note what is close. It is a five-minute exercise that prevents most of the incidental damage on clearing jobs.

What drives the cost

Cost drivers on this kind of project
Driver	Effect
Machine class permitted by the route	The dominant factor. A smaller machine multiplies the hours on identical work.
Route length and surface	Long or poor routes slow every movement on and off the site.
Ground conditions and season	Soft ground adds schedule risk and the possibility of repair work.
Crossings	An unrated crossing may force unloading and walking the machine, or a different route.
Proximity to structures and utilities	Forces slower, more controlled methods along the affected edges.
Turnaround and staging space	Without it, deliveries take longer and may need a different vehicle.

Common mistakes

Describing access from the road and not from the gate
Measuring width and forgetting overhead clearance
Not mentioning a culvert because it has always held up
Booking work for a season when the ground will not carry a machine
Not walking the working area to note what is within reach

Questions to ask a contractor

What machine are you planning to bring, and what does it need to get in?
Would a wider entrance change your price, and by how much?
What season would you rather work this ground?
What happens if it is too wet on the day?
What do you need me to move or protect before you arrive?

What to do next

Take the measurements listed above and photograph each constraint
Contact the utility about any overhead line near the route
Run the site-access checker to produce a list for contractors
Send the measurements with your quote request rather than waiting to be asked

Questions people actually ask

What width does a clearing machine need?

It depends entirely on the machine class, and that is precisely why the measurement matters — the width you have determines which class can come. Measure your narrowest point and give the number to the contractor rather than asking them to guess.

Does bad access always cost more?

It usually does, because it caps machine size and therefore production rate. Sometimes it costs a great deal more, because it forces a much smaller machine onto work a large one would have finished quickly.

Can I widen access temporarily?

Often, and it is frequently worth it. Removing a gate or a fence section and reinstating it afterwards can change the machine class, and the saving on the clearing can exceed the fencing cost several times over.

Who pays if equipment damages my drive or gate?

Agree that before work starts, in writing. Some damage is unavoidable when heavy machinery uses a residential drive, and the time to establish expectations is before rather than after.