Apprentice Training, framing & carpentry

Gambrel Rafter Truss with Plywood Gussets

2x6 lower steep rafter, 2x6 upper shallow rafter, 1/2 in plywood gussets, horizontal collar tie

Time: 3 h
People: Two
Level

Before you start

Clear 4.5 × 3 m of floor and lay out the parts.
16 parts and 108 fasteners in 4 steps.
You'll want a claw hammer and a tape measure and a marker and a spirit level.
Ensure the pitch transition knuckles on opposing sides of the building line up with tight string lines.
Never stand an unbraced gambrel rafter pair without immediate diagonal ground bracing.

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, framing & carpentry

Gambrel Rafter Truss with Plywood Gussets

2x6 lower steep rafter, 2x6 upper shallow rafter, 1/2 in plywood gussets, horizontal collar tie

Time: 3 h
People: Two
Level

Before you start

Clear 4.5 × 3 m of floor and lay out the parts.
16 parts and 108 fasteners in 4 steps.
You'll want a claw hammer and a tape measure and a marker and a spirit level.
Ensure the pitch transition knuckles on opposing sides of the building line up with tight string lines.
Never stand an unbraced gambrel rafter pair without immediate diagonal ground bracing.