What Goes Into Planning a Lift

Planning Happens Whether It Is Written Down or Not

Every lift is planned. On a commercial job the plan is a document that goes into a project file. On a residential job it is the same sequence of questions answered on the phone and confirmed during the walkaround. The difference is the paperwork, not the thinking.

The reason to be explicit about this is that customers sometimes assume a small job means an informal one. It does not. A single hot tub over a wall involves the same chain of decisions as a scheduled commercial pick, just fewer of them and with fewer people needing to sign off.

What planning buys is that the surprises happen early, on a phone call, where they cost nothing. An unplanned lift moves the surprises to the moment the truck is set up and the load is rigged, where they cost a day.

The Six Things a Plan Has to Settle

Load weight comes first, and it needs a source rather than an estimate. A data plate, a spec sheet or a dealer confirmation. Anything in or on the item counts: fluids, contents, the skid it is bolted to, the pallet under it.

Radius and configuration come next. Where can the truck sit, how far is that from the landing point, what boom length does that require and how far can the outriggers extend at that position. These four answers together produce the capacity available, which then gets compared against the load.

Ground conditions decide whether the chosen position is real. Swing path and exclusion zone decide what has to be empty. And finally the contingency: what happens if the load is heavier than stated, if the wind comes up, or if the landing spot turns out to be occupied.

1. Load weight, from a documented source rather than a guess
2. Working position and the radius it produces
3. Boom length, outrigger extension and the resulting capacity from the chart
4. Ground conditions under each pad, including anything buried
5. Swing path, exclusion zone and what has to be cleared or stopped
6. Contingency if the load, the weather or the site is not as expected

Deductions, Margins and the Number That Matters

The capacity figure that comes off a chart is not the amount of load you can hang on the hook. The hook block, the slings, the shackles, the spreader bar and any jib all weigh something, and all of it comes off before the comparison is made.

That catches people out on jobs where the load is close to the limit. A pick that looks like it just fits stops fitting once the rigging is accounted for, and rigging on an awkward load can be substantial.

The other thing a plan builds in is margin. A lift planned to land exactly on the limit has no room for the item weighing slightly more than the data plate said, for the ground being slightly softer than it looked, or for the load having to swing a little further than expected. Planning to sit comfortably inside the chart rather than at its edge is how a job stays uneventful.

Written Plans for Project Files

Commercial customers, general contractors and some HOAs need the plan on paper for their own file. That is a normal request and it is easier to satisfy when it is raised at booking rather than the morning of the lift.

A written plan for a project file typically covers the load and its weight source, the crane and its configuration, the working position, the calculated radius, the rigging arrangement, the ground assessment, the exclusion zone and the personnel involved. If your file needs something specific in it, say what, and it can be built into the document.

Pre-job walkthroughs with a superintendent are also worth doing on complex sites, particularly where other trades are working in the swing path or where site access is controlled. Half an hour walking the site in advance removes most of the ambiguity that otherwise gets discovered on the day.

When the Plan Says No

Sometimes planning produces the answer that the job cannot be done as described. That is a successful outcome for a plan, not a failure, and it happens for a small number of recurring reasons.

The most common is that there is no working position with adequate ground. Second most common is that the radius required from the only available position puts the load outside the chart. Third is overhead lines that cannot be cleared and cannot be de-energized in the available timeframe.

In most of those cases there is an alternative worth discussing: a different working position that needs a fence panel removed, a different day when the utility can cover a line, a staged approach where the load is set down closer and moved by other means, or a different piece of equipment entirely. What does not happen is a lift going ahead on the hope that the numbers were pessimistic.