Carpentry, Floor Systems Questions and
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the purpose of a floor joist?
✔✔ To support the weight of the floor and transfer loads to the foundation or walls.
Why are subfloors installed in floor systems?
✔✔ To provide a stable, level surface for the finished flooring.
What is the main function of a sill plate in a floor system?
✔✔ To connect the floor system to the foundation.
Why is it important to stagger joints in subfloor panels?
✔✔ To increase the structural strength and reduce movement.
What is a rim joist, and what does it do?
✔✔ It forms the perimeter of the floor frame and ties the joists together.
1
, Why are floor trusses sometimes used instead of traditional joists?
✔✔ They allow for longer spans and provide space for utilities.
What is the significance of spacing between floor joists?
✔✔ Proper spacing ensures structural stability and prevents floor sagging.
What is the role of blocking in a floor system?
✔✔ To provide lateral support to joists and reduce twisting or warping.
Why must a subfloor be securely fastened to the joists?
✔✔ To prevent squeaking and ensure a solid foundation for finished flooring.
What is the primary consideration when selecting materials for floor joists?
✔✔ The material must be strong enough to bear the intended load.
Why is moisture control important in floor systems?
✔✔ To prevent rot, mold, and structural weakening of wood components.
2
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the purpose of a floor joist?
✔✔ To support the weight of the floor and transfer loads to the foundation or walls.
Why are subfloors installed in floor systems?
✔✔ To provide a stable, level surface for the finished flooring.
What is the main function of a sill plate in a floor system?
✔✔ To connect the floor system to the foundation.
Why is it important to stagger joints in subfloor panels?
✔✔ To increase the structural strength and reduce movement.
What is a rim joist, and what does it do?
✔✔ It forms the perimeter of the floor frame and ties the joists together.
1
, Why are floor trusses sometimes used instead of traditional joists?
✔✔ They allow for longer spans and provide space for utilities.
What is the significance of spacing between floor joists?
✔✔ Proper spacing ensures structural stability and prevents floor sagging.
What is the role of blocking in a floor system?
✔✔ To provide lateral support to joists and reduce twisting or warping.
Why must a subfloor be securely fastened to the joists?
✔✔ To prevent squeaking and ensure a solid foundation for finished flooring.
What is the primary consideration when selecting materials for floor joists?
✔✔ The material must be strong enough to bear the intended load.
Why is moisture control important in floor systems?
✔✔ To prevent rot, mold, and structural weakening of wood components.
2
