Plate Deflection Calculator

Fixed Rectangular Uniform Load

A rectangular plate rigidly fixed around all four edges, carrying a uniformly distributed load across its surface, is the standard model for a welded structural floor panel, hatch cover, or tank wall panel under an evenly spread pressure or weight load. As with the circular plate cases, combining a fixed edge with a spread load gives the lowest deflection and stress of the four rectangular plate loading combinations on this site.

For the same uniform load on a plate simply supported at its edges instead, see our Simply Supported Rectangular Uniform Load calculator.

This calculator calculates the Maximum Deflection and Maximum Stress in a Fixed Edge Rectangular Plate with a Uniform Load.

Enter your values as required and press SOLVE, your results will be displayed. If you change any unit types or values please press SOLVE again.

CLEAR ALL clears all fields.

MATERIAL: Aluminium 2024-T4Aluminium 6061-T6Aluminium 7075-T3BrassCast IronCopperLeadMagnesiumPhosphur BronzeStainless Steel, 304Stainless Steel, 316Steel, S235Steel, S275Steel, S355Steel, 4130Steel, ASTM A36Steel, ASTM A441Titanium, Grade 2Titanium, Grade 5

THICKNESS: (T)

MillimetresCentimetresMetresInches

WIDTH: (W)

MillimetresCentimetresMetresInches

LENGTH: (L)

MillimetresCentimetresMetresInches

UNIFORM LOAD: (P)

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MAXIMUM DEFLECTION :(ym)

MetresCentimetresMillimetresMicrometresInches

MAXIMUM STRESS : (sm)

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RELATED PAGES

• Simply Supported Rectangular, Uniform Load
• Fixed Rectangular, Concentrated Load

FREQUENTLY ASKED QUESTIONS

Does this calculator account for different length and width dimensions?

Yes — enter the actual plate length and width rather than assuming a square plate, since the aspect ratio significantly affects how load distributes between the two spanning directions and therefore the resulting deflection and stress.

What's a typical real-world example of this loading case?

A welded steel floor panel or tank wall section under hydrostatic or evenly distributed pressure, or a structural hatch cover under a uniformly spread load such as snow or stacked material, are both good matches.