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Stesso

Stair Stringer Strength Considerations

2:48
2:58
29.2M views

At 2:48 in

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What happens here

The video concludes by demonstrating the importance of maintaining sufficient lumber dimensions when cutting stair stringers. The thicker bottom section of a correctly cut stringer provides the necessary strength. In contrast, using smaller dimensional lumber or 'overcutting' the stringer (cutting too deep into the supportive material) significantly weakens the stairs, making them unsafe and prone to failure when weight is applied.

Goal: Understand and ensure the structural strength of stair stringers.

Tools and materials

  • Hammer — Demonstrating strength/weakness by hitting the stringers
  • Stair Stringer — Demonstrating correct strength

What they say

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two marks and chalk a line. Set your depth. Cut your line. Install your picture frame. Install frames and stairs with screws. The thicker bottom section makes your stairs strong. If we use smaller dimensional lumber or overcut our stairs, then your stairs will not be strong. Thanks for watching.

Auto-generated from the video audio.