Apprentice Training, structural & framing

Concrete Column Plyform Box with Steel Wedge Clamps

3/4 in HDO plyform box (18x18 in ID), 2x4 vertical battens, adjustable wedge-lock steel column clamps spaced progressively

Time: 2 h 30 min
People: Two
Level

Before you start

Clear 3.5 × 2 m of floor and lay out the parts.
21 parts and 72 fasteners in 6 steps.
You'll want a screwdrivers and a claw hammer and a tape measure and a drill and a marker and a spirit level.
Inspect clamp wedges to verify full mechanical bite; loose wedges will yield under internal concrete vibrator action.
Ensure form release agent does not coat internal rebar or dowels projecting from the foundation.

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

Concrete Column Plyform Box with Steel Wedge Clamps

3/4 in HDO plyform box (18x18 in ID), 2x4 vertical battens, adjustable wedge-lock steel column clamps spaced progressively

Time: 2 h 30 min
People: Two
Level

Before you start

Clear 3.5 × 2 m of floor and lay out the parts.
21 parts and 72 fasteners in 6 steps.
You'll want a screwdrivers and a claw hammer and a tape measure and a drill and a marker and a spirit level.
Inspect clamp wedges to verify full mechanical bite; loose wedges will yield under internal concrete vibrator action.
Ensure form release agent does not coat internal rebar or dowels projecting from the foundation.