Big Box / Mega Box

Question 1

Define Big Box / Mega Box

Answer 1

40,000 sq ft to 300,000 sq ft- Big Box
Over 300,000 sq ft - Mega Box

Question 2

Objectives of Big Box

Answer 2

• Size Up
• Call for help early
• Supplement Fire suppression system
• Assess Life Safety and evacuation
• Exposure Protection
• Confine and Extinguish the fire
• Ventilation

Question 3

Tactical Considerations

Answer 3

Large caliber handlines ( 2.5 in )
use standpipes only if in safe zone
fire attack made from closest exterior entry/exit point
“Focused area search should be used

Question 4

Watch out Situations

Answer 4

Fire in Truss roof system
Deeper than 150’ from point of entry
interior “recon” w/out full PPE and charged handline
conditions getting worse
zero visibility
Working past 50% air supply
Fire/Heavy Heat/Smoke above interior crews
operating close to alt-slab construction
horizontal ventilation w/ an unchecked fire