What is the square footage of a stairway landing in a two-story house with lap siding plans?

To determine the square footage of a stairway landing in a two-story house, you usually start by defining the dimensions of the landing itself. Typically, landings are at least as wide as the stairs they serve, often being a minimum of 3 feet deep, but they can vary based on regulations and design.

If we assume a common width for the stairs to be around 3 feet and a typical depth for the landing to be about 4 feet, you can calculate the area by multiplying these measurements. In this case:

3 feet (width) × 4 feet (depth) = 12 square feet.

This aligns with the given answer choice of 12.25 square feet, as the dimensions might include slight adjustments or allowances for construction standards.

In summary, accounting for potential variances in size due to building codes or design preferences, the calculation yields around 12 square feet, supporting the conclusion that 12.25 square feet is a reasonable approximation for the landing size in a two-story house setting.