Apprentice Training, structural & framing

Horizontal Fire-Blocking & Mid-Wall Cavity Stops

2x4 studs (16 in O.C., 10 ft height), staggered 2x4 solid wood fire stops

Time: 1 h 15 min
People: One
Level

Before you start

Clear 4 × 3 m of floor and lay out the parts.
22 parts and 36 fasteners in 4 steps.
You'll want a claw hammer and a tape measure and a marker and a spirit level and a trimming knife.
Any gap exceeding 1/8 inch between fireblock edges and studs violates life-safety building codes.
Never use non-rated standard expanding spray foam to seal firestop penetrations.

Apprentice Training & Risk NoticeEducational training demonstration only. Risk: Real-world structural lumber sizing, spans, and fastener schedules carry legal liability and must comply with local building codes (IRC/IBC/OSHA) and certified engineering.

Apprentice Training, structural & framing

Horizontal Fire-Blocking & Mid-Wall Cavity Stops

2x4 studs (16 in O.C., 10 ft height), staggered 2x4 solid wood fire stops

Time: 1 h 15 min
People: One
Level

Before you start

Clear 4 × 3 m of floor and lay out the parts.
22 parts and 36 fasteners in 4 steps.
You'll want a claw hammer and a tape measure and a marker and a spirit level and a trimming knife.
Any gap exceeding 1/8 inch between fireblock edges and studs violates life-safety building codes.
Never use non-rated standard expanding spray foam to seal firestop penetrations.