Apprentice Training, structural & framing

Heavy Timber Glulam Girder & Flush Purlin Joint

6-3/4 x 24 in glulam girder, 4x8 solid purlins, aluminum dovetail concealed connectors (Knapp/Ricon)

Time: 2 h 30 min
People: Two
Level

Before you start

Clear 3 × 3.5 m of floor and lay out the parts.
17 parts and 52 fasteners in 5 steps.
You'll want a screwdrivers and a claw hammer and a tape measure and a drill and a spirit level.
Ensure all connector screws are driven dead perpendicular; angled screw heads prevent dovetails from dropping flush.
Check that router mortise depth matches connector thickness exactly to maintain structural fire-resistance ratings.

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

Heavy Timber Glulam Girder & Flush Purlin Joint

6-3/4 x 24 in glulam girder, 4x8 solid purlins, aluminum dovetail concealed connectors (Knapp/Ricon)

Time: 2 h 30 min
People: Two
Level

Before you start

Clear 3 × 3.5 m of floor and lay out the parts.
17 parts and 52 fasteners in 5 steps.
You'll want a screwdrivers and a claw hammer and a tape measure and a drill and a spirit level.
Ensure all connector screws are driven dead perpendicular; angled screw heads prevent dovetails from dropping flush.
Check that router mortise depth matches connector thickness exactly to maintain structural fire-resistance ratings.