Apprentice Training, framing & carpentry

Octagonal Roof Rafters & Center Compression Hub

Heavy 1/4 in welded steel compression ring, eight 2x6 hip rafters at 6:12 pitch, rim fascia

Time: 5 h
People: Two
Level

Before you start

Clear 4 × 4 m of floor and lay out the parts.
20 parts and 52 fasteners in 5 steps.
You'll want a screwdrivers and a spanners and a tape measure and a drill and a marker and a spirit level.
Do not remove the temporary center shoring post until all eight hip rafters and perimeter fascia boards are secured.
Check bolt alignment through steel tabs before driving bolts to prevent cross-threading or wood splitting.

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

Octagonal Roof Rafters & Center Compression Hub

Heavy 1/4 in welded steel compression ring, eight 2x6 hip rafters at 6:12 pitch, rim fascia

Time: 5 h
People: Two
Level

Before you start

Clear 4 × 4 m of floor and lay out the parts.
20 parts and 52 fasteners in 5 steps.
You'll want a screwdrivers and a spanners and a tape measure and a drill and a marker and a spirit level.
Do not remove the temporary center shoring post until all eight hip rafters and perimeter fascia boards are secured.
Check bolt alignment through steel tabs before driving bolts to prevent cross-threading or wood splitting.