Stringer

Definition

A stringer is a sloping wood or steel member supporting the treads of a stair. It is also a long horizontal timber in a structure supporting a floor.

Purpose

The purpose of a stringer is to provide structural support for stair treads or floors, ensuring stability and strength in staircases and flooring systems.

Examples of Use

• Residential staircases use wooden stringers to support the treads and risers.
• Commercial buildings employ steel stringers for durability and load-bearing capacity in stairways.
• Decks and outdoor stairs often incorporate stringers to maintain structural integrity and safety.

Related Terms

• Tread: The horizontal part of a stair on which a person steps.
• Riser: The vertical part of a stair between each tread.
• Carriage: Another term for a stair stringer, particularly in wooden stairs.

Notes

Stringers are crucial components in staircase construction, providing the necessary support for safe and functional stairs, requiring precise measurement and installation.