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

Total vertical rise (m)

Required number input.

Number of risers

Required integer input.

Divide total vertical rise by the number of equal risers; check local stair-code bounds separately. 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]

Equal riser height (m)

The resulting equal riser height returned as a number.

• A quantity estimate or simplified engineering formula is not a building-code check, stamped design, manufacturer approval, or site inspection. Material properties, tolerances, waste, moisture, workmanship, loads, local conditions, and code requirements can change the result.
• 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.

• Stair Tread Depth

  Divide total horizontal stair run by the number of equal treads; excludes nosing projections and landings.

• Simple Beam Deflection

  Estimate midspan elastic deflection of a prismatic, simply supported beam under uniform load using small-deflection Euler–Bernoulli theory; not a code check.

• Block Coursing Count

  Number of complete block courses that fit a wall height at the specified block-plus-bed-joint course height.