Estimate preliminary loads carried by steel platform support legs from platform area, dead load, live load, equipment loads and user-selected support distribution.
Platform Geometry
The calculator uses platform area to estimate distributed loads and provides a simple preliminary leg-load distribution. Actual reactions depend on the framing arrangement and stiffness.
Platform Loads
Load Factors & Distribution
Ready to calculate preliminary platform support-leg loads.
Platform Leg Load Result
Preliminary Load per Leg
—
Platform Area
—
m²
Dead Load
—
kN
Live Load
—
kN
Other Loads
—
kN
Total Load
—
kN
Load Distribution Summary
Platform Loads
Platform area—
Permanent load intensity—
Total dead load—
Total live load—
Equipment load—
Additional point load—
Support Loads
Total gravity load—
Design gravity load—
Nominal load / leg—
Distributed design load / leg—
Uplift / leg reference—
Net vertical leg demand—
Detailed Platform Load Takeoff
Load Item
Area / Quantity
Intensity / Unit Load
Total Load
Factored Load
Per Leg
Steel Platform Support Preview
Platform loads ↓
Simplified support-leg load path
The illustration shows a simplified four-leg platform. It is a conceptual load-path reference and is not a structural framing drawing.
Platform Area Calculation
For a simple rectangular platform, plan area is calculated from platform length and width.
A = Platform Length × Platform Width
Distributed dead and live loads are then applied to this area.
Gravity Load Calculation
Permanent load consists of the entered deck, steel framing and rail/accessory loads.
D = A × (Deck Dead Load + Frame Dead Load + Rail Load)
The live load is calculated separately:
L = A × Live Load
Equipment and additional point loads are added independently.
P = Equipment Load + Additional Point Load
Leg Load Distribution
For a simple preliminary equal-support model, the nominal gravity load per leg is:
Nominal Leg Load = Total Gravity Load ÷ Number of Legs
A distribution factor can be applied when a conservative preliminary support demand is desired.
Design Leg Load =
Total Design Gravity Load × Distribution Factor ÷ Number of Legs
This does not model actual stiffness-based reactions or load redistribution.
Uplift Reference
An optional uplift value can be entered to provide a simple reference for uplift demand at the support legs.
Uplift per Leg = Uplift Load × Uplift Distribution Factor ÷ Number of Legs
The net vertical reference combines downward gravity demand with the entered uplift demand.
Important Limitations
This is a preliminary steel platform leg-load estimator.
It assumes a simplified rectangular platform and support arrangement.
It does not perform a finite-element or stiffness-based analysis.
It does not calculate actual support reactions for flexible framing.
It does not design platform beams, joists or deck members.
It does not check leg compression capacity.
It does not check leg buckling or slenderness.
It does not design base plates or anchors.
It does not check foundation capacity.
It does not design welded or bolted connections.
It does not automatically account for wind, seismic, impact or dynamic loads.
Point-load locations are not modeled geometrically.
Unequal leg elevations and support settlements are not modeled.
Actual load sharing depends on the complete structural system.
Engineering warning: Use this calculator for preliminary load estimation only. Final platform support-leg design should be based on the actual structural arrangement, load locations, applicable design standards, member stiffness, connection behavior, foundation conditions and complete load-path analysis.
Frequently Asked Questions
What does the Steel Platform Leg Load Calculator calculate?
It estimates total platform gravity loads and distributes them among the entered support legs using a simple preliminary model.
Can I include platform dead load and live load?
Yes. Separate dead-load components and a platform live-load intensity can be entered.
Can I include equipment on the platform?
Yes. Equipment load and quantity can be entered separately from the distributed platform loads.
Can I include point loads?
Yes. Additional point-load magnitude and quantity can be entered. Their exact locations are not modeled.
Does the calculator assume equal load sharing?
The nominal result divides the total load equally among the entered legs. A distribution factor provides an additional preliminary adjustment.
Does it design the steel legs?
No. Leg section selection, compression capacity, buckling, connections, base plates and foundations require separate structural checks.