Constructing A Staircase - Carpentry Level 5

In the video "Constructing A Staircase - Carpentry Level 5," an experienced carpenter demonstrates how to build a wooden staircase. The video covers the various steps involved in constructing a straight flight staircase, including measuring and cutting stringers, installing treads and risers, and securing handrails. The carpenter begins by measuring and marking out the stringers, and then cutting them to size using a circular saw. Next, he explains how to install treads and risers, ensuring they are level and secure. 

The video also covers how to cut and fit handrails, including using a router to create a groove for the handrail to sit in. The final result is a sturdy, well-constructed wooden staircase that can add value and functionality to any home or building.