Use this construction calculation for preliminary quantity, geometry, material, load, or coverage planning when dimensions and units have been measured consistently.

Centered vertical load (N)

Required number input.

Effective contact area (m²)

Required number input.

Calculate average bearing pressure from centered vertical footing load and effective contact area; excludes eccentricity and soil capacity checks. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Average bearing pressure (Pa)

The resulting average bearing pressure returned as a number.

• The structural relationship assumes the stated support, section, material, and load model. Connections, lateral stability, buckling, shear, vibration, fire, durability, load combinations, and code factors require a complete design check.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Verify dimensions on site, use current product data and local code requirements, include an explicit waste or safety allowance where appropriate, and obtain qualified structural, electrical, plumbing, or geotechnical review when required.

• Pipe Volume Cylinder

  Calculate a straight pipe's internal capacity from its inside diameter and length; excludes fittings and wall volume.

• Trench Shoring Boards Area

  Find the face area of shoring on both vertical trench sides; excludes end walls, bracing, and overlaps.

• Column Slenderness Ratio

  Calculate dimensionless column slenderness from effective buckling length and radius of gyration about the chosen axis.