Selection scope and sizing decision
Useful for: Buyers converting overhead work positions into model-specific height, outreach and platform-load requirements
Genie product data illustrates that working height and platform height can differ by an explicit convention. The exact relationship, load and setup remain model specific.
The shortest ground distance to a pole or facade is not always the boom outreach. Vehicle centerline, turntable, tail swing, platform dimensions and setup location change the geometry.
Sizing inputs
Supply these values before a model, body size or working rating is selected:
- 01Platform work points and elevation datum
- 02Horizontal distance from feasible setup points
- 03Workers, tools and material load
- 04Obstacle and electrical clearances
- 05Required rotation and below-grade positions
- 06Exact working envelope and setup condition
From sizing inputs to model approval
Size from the operating requirement, test the complete configuration and retain the project records that control the final selection.
- 01Define the target duty
Aerial work platform working-height and outreach interpretation
- 02Quantify sizing inputs
Platform work points and elevation datum; Horizontal distance from feasible setup points
- 03Test the complete vehicle
Height definition and Outreach must both pass.
- 04Approve the selected rating
Coordinate-based work-position schedule; Manufacturer definitions for height and outreach
Selection and sizing matrix
Use every row to test the proposed size. A nominal value is not sufficient when payload, geometry or operating limits conflict.
Scroll horizontally to view all columns.
| Decision factor | What to choose or check | Limit or condition |
|---|---|---|
| Height definition | Distinguish platform floor height from any stated working-height convention. | Do not compare differently defined headline heights. |
| Outreach | Use horizontal reach at the required height and load. | Maximum outreach may occur at a different elevation or load. |
| Envelope | Plot every target inside the exact approved working region. | Connecting separate maxima creates a false capability point. |
| Clearance | Add boom, platform, obstacle and electrical clearance to the path. | A reachable point is not automatically a safe path. |
Applied calculation
Map the work point and platform load to the approved envelope A work-height request is incomplete until horizontal outreach, setup geometry and total platform load are defined together.
- 01Platform load200 kg
160 + 40 - 02Envelope checkMatch the manufacturer chart
14 m height + 7 m outreach + 200 kg load - 03Setup checkVerify at the actual site
Slope, outrigger footprint, ground support and obstructions
Decision: The hypothetical point and 200 kg platform load become one chart lookup and site-setup check. A headline maximum height cannot approve the task.
Evidence boundary: Illustrative work point only. Do not use it to approve personnel lifting; the selected model chart, instructions and qualified site assessment control.
Selection 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.
- Coordinate-based work-position schedule
- Manufacturer definitions for height and outreach
- Exact working-envelope chart at stated load and setup
- Site obstacle, electrical and exclusion-zone review
Selection and sizing traps
Adding person height to a published working height
Better selection method: Use the manufacturer definition without double counting.
Combining maximum height and maximum outreach
Better selection method: Read the actual envelope at the target point.
Checking the platform only
Better selection method: Verify the complete boom and vehicle clearance path.
Limitations
- This guide does not calculate a safe approach to energized lines or approve a lift plan.
- The exact manufacturer chart and qualified site controls remain controlling.
- Reject the model or stop work when any task point, load, path, clearance or setup condition falls outside the approved envelope.
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 manufacturer load limits, controls, outriggers, brakes and travel checks. It is not a destination approval or KEEYAK rating.
Does not establish: It is authority, jurisdiction or subject specific and does not approve the selected vehicle for another destination or project.
Supports: Official U.S. guidance for worksite assessment, training, inspection, platform load, reach and stabilization. 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.