- Slotted for beam adjustment in 2″ (51 mm) increments
- Welded construction
- Upper and Lower channels accept Omega Upright with 1″ (25 mm) adjustments
- Heavy-duty diagonals and footplates
To preclude overturning, frame depth x 6 cannot exceed height of topmost loaded beam pair, unless all frames are properly anchored or braced externally.