When a residential or light commercial project calls for a crane, the first question is usually about cost. The second question should be about which type of crane actually fits the job. For most small job sites in Vermont, the choice comes down to two options: a boom truck or a mobile crane.
Both can lift. Both have operators. Both show up on a truck. But they are built for different situations, and choosing the wrong one costs money, time, or both. Here is how to think through the decision based on what your job actually requires.
What Is a Boom Truck?
A boom truck is a hydraulic crane mounted on a commercial truck chassis. It drives to the job site under its own power, just like any other truck on the road. The boom folds down for transport and extends hydraulically once the truck is parked and the outriggers are deployed.
Boom trucks typically have lifting capacities ranging from about 10 tons to 40 tons, depending on the model. Their boom lengths generally reach between 60 and 130 feet. The truck chassis gives them highway speed for mobilization, and they can set up quickly because there is no separate transport vehicle involved.
The key advantage of a boom truck is speed and simplicity. It arrives, sets up, lifts, and leaves. For jobs that need a few picks over a few hours, a boom truck is often the most efficient option.
What Is a Mobile Crane?
A mobile crane (sometimes called a hydraulic truck crane or all-terrain crane) is a purpose-built lifting machine on a carrier designed specifically for crane work. Unlike a boom truck, where the crane is an attachment on a standard truck, a mobile crane is engineered from the ground up for lifting capacity, reach, and stability.
Mobile cranes range from about 30 tons to well over 300 tons of capacity. Their booms can extend beyond 200 feet on larger models, and they can be equipped with jib extensions for even more reach. They typically ride on multi-axle carriers with all-wheel steering and, in the case of all-terrain models, can handle rough ground and uneven surfaces that a standard truck chassis cannot.
The tradeoff is mobilization. Larger mobile cranes require flatbed transport to the job site, which adds time and cost. Setup takes longer because the outrigger spread is wider and the configuration is more involved. But once set up, a mobile crane can handle jobs that a boom truck simply cannot.
Capacity: Where the Numbers Split
This is the most straightforward comparison. If your job requires lifting more than about 30 to 40 tons, or if the load needs to travel a long distance from the crane's center pin, you need a mobile crane. Boom trucks top out in that range, and their capacity drops off sharply as the boom extends.
Every crane has a load chart that shows how much it can lift at a given radius (the horizontal distance from the crane's center to the load). A boom truck might be rated at 30 tons at a 10-foot radius, but that number drops to a fraction of that at 60 feet. A mobile crane with the same 30-ton rating at 10 feet retains much more of its capacity at longer radii because of its heavier counterweight and wider outrigger base.
For most residential work in Vermont, boom truck capacity is sufficient. Roof trusses, residential steel beams, HVAC units, and hot tubs all fall well within boom truck range. Where the mobile crane becomes necessary is when the load is heavier (commercial steel, modular home sections, large equipment) or when the reach required is beyond what a boom truck can safely achieve.
Site Access: The Vermont Factor
Vermont job sites are not like suburban developments with wide cul-de-sacs and flat, paved lots. Many residential and agricultural sites in Franklin County and surrounding areas sit at the end of narrow dirt roads, behind covered bridges with weight limits, or on hilltop lots with steep gravel driveways.
This is where the boom truck has a clear advantage. Because it is built on a standard truck chassis, it can navigate roads that a larger mobile crane carrier cannot. It has a shorter wheelbase, a lighter gross vehicle weight, and does not require the wide turning radius that a multi-axle crane carrier demands.
A mobile crane, especially anything over 50 tons, may need route planning to reach a rural Vermont job site. Low-hanging branches, narrow bridges, soft shoulders, and steep grades can all prevent a large crane from reaching the work zone. In some cases, trees need to be trimmed, road shoulders need to be reinforced, or alternative access routes need to be arranged, all of which add cost and planning time.
For contractors working on tight residential lots in areas like Swanton, St. Albans, or the smaller towns throughout Franklin County, the boom truck's ability to simply drive in and set up is a major practical advantage. If you are unsure which option your site can accommodate, talking through the access details with your crane service provider before booking saves time and prevents day-of surprises.
Setup Footprint
A boom truck deploys outriggers that extend to each side of the truck chassis. The footprint is relatively compact, typically requiring a cleared area of about 20 to 25 feet wide and the length of the truck. On a residential lot, this usually means the driveway or a section of the yard adjacent to the structure.
A mobile crane, depending on its size, needs a significantly larger footprint. The outrigger spread on a 60-ton mobile crane can exceed 25 feet on each side. The carrier itself is longer and heavier, and the ground under the outriggers needs to support substantially more weight. This means more ground preparation, more crane mats, and more cleared space.
On a small residential lot, the boom truck's compact footprint is often the deciding factor. There may simply not be enough room to set up a mobile crane safely, especially if the house is close to the property line, the septic system limits where heavy equipment can sit, or the driveway is the only access point.
Setup Time and Cost
A boom truck can typically be set up and ready to lift within 15 to 30 minutes of arrival. The outriggers deploy hydraulically, the boom extends, and the operator runs through the pre-lift checks. Teardown is equally fast. For a half-day job, the setup and teardown time is a small fraction of the total rental period.
A mobile crane takes longer. Depending on the size, setup can take 30 minutes to over an hour. Larger cranes may require assembly of counterweight stacks, jib extensions, or other components that arrive on separate transport vehicles. Teardown mirrors the setup time. For a job that only requires a few hours of actual lifting, the setup and teardown overhead on a mobile crane can represent a significant portion of the total cost.
Mobilization cost is also different. A boom truck drives itself to the site, so the mobilization charge covers fuel, travel time, and the operator. A mobile crane that requires flatbed transport adds the cost of the hauling truck, a separate driver, and potentially a pilot car for oversized loads on public roads.
For most residential jobs in Vermont, the boom truck's lower mobilization and setup cost makes it the more economical choice. The mobile crane's higher cost is justified only when the job genuinely requires the extra capacity or reach.
When to Choose a Boom Truck
A boom truck is the right call for most of these situations:
- Roof truss setting on single-family homes
- Residential steel beam placement (single beams or small multi-beam jobs)
- HVAC rooftop unit placement
- Hot tub and spa delivery over fences or obstacles
- Tree removal where the crane assists a tree service crew
- Light commercial sign installation
- Any lift under about 20 tons at moderate radius on a site with standard road access
If the heaviest load on your project falls within the boom truck's capacity at the required radius, and the site can accommodate a truck, this is almost always the faster and cheaper option.
When to Choose a Mobile Crane
A mobile crane is the right call when:
- The load exceeds 30 to 40 tons
- The required reach is beyond 100 feet and the load is substantial
- Multiple heavy lifts are planned over several days (the higher daily rate is offset by capacity)
- The job involves setting modular home sections, large prefabricated components, or heavy industrial equipment
- The lift requires a jib extension for additional height or reach
- The site has rough terrain that needs an all-terrain carrier (some mobile cranes handle unpaved surfaces better than a standard truck chassis)
On commercial projects, multi-story construction, and heavy industrial work, the mobile crane is the standard choice. Its capacity, reach, and stability are designed for loads and geometries that a boom truck cannot safely handle.
The Overlap Zone
There is a range of jobs where either machine could work. A 25-ton lift at a 30-foot radius, for example, might be within the capacity of both a large boom truck and a small mobile crane. In these overlap situations, the decision usually comes down to site access, setup space, and cost.
If the site can fit both machines, the boom truck usually wins on total cost because of lower mobilization and faster setup. If the site has access challenges that favor one machine over the other, that becomes the deciding factor. And if the job involves any uncertainty about load weight or radius (which happens more often than contractors admit), the mobile crane's higher capacity provides a safety margin that can prevent a failed lift.
The best approach for overlap jobs is to give your crane provider the full details: load weight, lift radius, site conditions, and access route. An experienced crane service team will recommend the right machine based on the specifics rather than defaulting to the most expensive option. You can also review the types of lifts we have handled in our portfolio to see which equipment fits different project types.
Make the Right Call Before You Book
Choosing between a boom truck and a mobile crane is not about picking the bigger or cheaper option. It is about matching the machine to the job. The right crane shows up, sets up without problems, handles every lift safely, and leaves without delays. The wrong crane either cannot do the job or costs more than it should.
If you have a project coming up and are not sure which crane type fits, call Green Mountain Crane Service at (802) 370-5361 or reach out online. We will walk through your job details and recommend the right equipment for your site, your loads, and your budget.
