Product Manual

MOUNTING STRUCTURE: BAR JOISTS

WARNING: The fan should not be installed unless the structure on which the fan is to be mounted is

of sound construction, undamaged, and capable of supporting the loads of the fan and its method of

attachment. Verifying the stability of the mounting structure is the sole responsibility of the customer and/

or end user, and Big Ass Fans hereby expressly disclaims any liability arising therefrom, or arising from

the use of any materials or hardware other than those supplied by Big Ass Fans or otherwise speciﬁed in

these installation instructions.

CAUTION: Unsupported angle iron spans should not exceed 12 ft (3.7 m).

Depending on the angle iron span, the Yoke Mount kit comes with either a small or large upper yoke. Angle irons

and angle iron hardware are not included with the Yoke Mount kit.

ATTENTION

Never use beam clips when mounting the fan to angle irons! Beam clips are only intended for I-beam

installations.

Angle iron span

(between mounting points)

Minimum angle iron dimensions

(W x H x T)

Number of angle

irons needed

6 ft (1.8 m) or less 2.5” x 2.5” x 0.25” (6.4 cm x 6.4 cm x 0.6 cm) 2

over 6–8 ft (1.8–2.4 m) 3” x 3” x 0.25” (7.6 cm x 7.6 cm x 0.6 cm) 2

over 8–12 ft (2.4–3.7 m) 3” x 3” x 0.25” (7.6 cm x 7.6 cm x 0.6 cm) 4*

*2 pairs of angle irons. Pairs should be placed back to back and fastened in center (see step 2).

1. Select proper angle irons

Follow the table below when selecting angle irons for fan installation.

Angle Iron Side View

(see table for dimensions)

Width

Height

Thickness

6 ft (1.8 m) or less

over 6–8 ft (1.8 m–2.4 m)

over 8–12 ft (2.4–3.7 m)