Construction Carpentry and Wood Framing 2

Question 1

What is 'blocking' in wood frame construction?

Accepted Answer

Horizontal pieces of lumber installed between framing members for support, fire stopping, or backing

Answer

Blocking refers to pieces of lumber installed horizontally between studs, joists, or rafters to provide support for fixtures, prevent fire spread, or limit racking.

Question 2

What is the purpose of 'hurricane ties' (rafter ties) in roof framing?

Accepted Answer

To connect rafters to the top plates and resist uplift forces from wind

Answer

Hurricane ties (metal connectors) anchor rafters to the wall top plates, providing resistance against wind uplift forces that could lift the roof off the walls.

Question 3

What is the 'span' of a floor joist?

Accepted Answer

The horizontal distance between bearing points (supports) for the joist

Answer

Joist span is the clear horizontal distance between the supports (typically foundation wall, beam, or bearing wall) that carry the joist's load.

Question 4

What does 'on center' (OC) mean in framing dimensions?

Accepted Answer

The measurement from the center of one framing member to the center of the adjacent member

Answer

On center (OC) refers to the distance measured from the center of one framing member to the center of the next parallel member.

Question 5

What is the correct minimum nail penetration for structural connections in wood framing?

Accepted Answer

10 nail diameters into the main member

Answer

NDS (National Design Specification) requires fasteners to penetrate the main member at least 10 times the nail diameter for full lateral load capacity.

Construction Practice Test

Construction Practice Test

Construction Carpentry and Wood Framing 2