Options being compared and the decision they affect
Useful for: Buyers choosing a boom system for delivery, placement and construction support
Boom names describe geometry, not complete capability. Two cranes of different type or size can overlap in some lifts and differ sharply in others.
A scenario matrix should use real pickup and placement points. It should also compare what remains of the truck after installation: deck length, legal payload, axle margin and service access.
Comparison inputs
Normalize these operating and configuration inputs before comparing vehicle types or systems:
- 01Load and dimensions
- 02Required radius, height and below-grade reach if relevant
- 03Obstacles and placement access
- 04Available stowed and deck space
- 05Lift frequency and operator workflow
- 06Outrigger space, ground and maintenance support
Option comparison matrix
Read across every row before selecting an option. No single advantage should override a failed operating or evidence condition.
Scroll horizontally to view all columns.
| Decision factor | What to choose or check | Limit or condition |
|---|---|---|
| Obstacle reach | Articulating geometry can suit work around obstacles. | Confirm the exact operating envelope and load chart. |
| Direct reach | Telescopic straight-boom geometry can suit open, direct placement. | Clearance and capacity still change with radius. |
| Stowed package | Compare folded dimensions, mounting and deck intrusion. | General boom-type assumptions do not replace installation drawings. |
| Fleet support | Compare controls, joints, wear points, inspection and local service. | Maintenance burden is model and duty specific. |
From comparable inputs to a controlled choice
A useful comparison holds the mission and project conditions constant, then tests each option against the same evidence requirements.
- 01Frame the comparison
Knuckle-boom versus stiff-boom truck-mounted crane comparison
- 02Normalize buyer inputs
Load and dimensions; Required radius, height and below-grade reach if relevant
- 03Compare like for like
Obstacle reach and Direct reach must both pass.
- 04Confirm the chosen evidence
Scenario-based operating envelope; Like-for-like load-chart comparison
Comparison evidence checklist
Ask for evidence that is traceable to the selected model, configuration, vehicle or project scope. A record from another project is context, not verification.
- Scenario-based operating envelope
- Like-for-like load-chart comparison
- Installation and stowed-dimension drawing
- Completed payload, axle and service-access review
Comparison traps
Declaring one boom type stronger
Better comparison: Compare charts at the same load, radius, height and setup.
Ignoring the stowed crane
Better comparison: Check transport dimensions, deck space and axle distribution.
Choosing from reach alone
Better comparison: Include load, obstacles, ground, outriggers and operator workflow.
Limitations
- The comparison cannot replace manufacturer load charts.
- Model, mounting and setup can change the result.
- Do not select either option when the required lift lies outside its approved chart or setup conditions.
Evidence scope and technical basis
Each source is limited to what it can support. This makes the evidence chain readable to buyers, search engines and AI systems without turning a general source into a project claim.
Supports: Controls the project-input, quotation, approval and inspection workflow described in this guide.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Provides public checklists and worksheets; the signed project documents remain controlling.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Defines the relevant product family and published configuration boundaries. Project-specific ratings require the selected OEM documents.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Official U.S. reference supporting configuration-specific load charts, stability factors, inspection identity and removal of hazardous deficiencies. Local rules may differ.
Does not establish: It is authority, jurisdiction or subject specific and does not approve the selected vehicle for another destination or project.