EMAEmergency Management Assistant
EMA
Emergency Management Assistant
Project Management & Disaster Recovery
Free Project Calculators
Estimate materials, debris, and costs for FEMA disaster recovery projects
Tree Debris Calculator
Volume (cu ft): —
Volume (cu yd): —
Est. weight (lb): —
Est. weight (ton): —
Uses trunk cylinder volume × 1.6 canopy factor. Densities: softwood 800 lb/cy, hardwood 1,100 lb/cy, mixed 1,000 lb/cy (green weight).
Demolition Debris & Dumpsters
Volume (cu ft): —
Volume (cu yd): —
Est. weight (ton): —
Dumpsters needed: —
Density: vegetative 500 lb/cy, construction 1,000 lb/cy, white goods 250 lb/cy (compacted).
Rip Rap Volume Calculator
Coverage (sq ft): 400
Volume (cu ft): 66.67
Volume (cu yd): 2.47
Est. amount (lb): 5,950.62
Est. amount (ton): 2.98
+15% compaction (ton): 3.42
Density of Rip Rap (6–12"): 2,410 lb/yd³ (1.21 t/yd³).
Concrete Volume Calculator
Volume (cu ft): —
Volume (cu yd): —
60 lb bags: —
80 lb bags: —
Ready-mix in cubic yards, or bag count (60 lb = 0.45 cu ft, 80 lb = 0.6 cu ft).
Asphalt Tonnage Calculator
Coverage (sq ft): —
Volume (cu yd): —
Est. weight (lb): —
Est. weight (ton): —
Asphalt hot mix density: ~145 lb/cu ft (3,915 lb/cu yd).
Drywall Materials Calculator
Wall area: 352 sq ft
Ceiling area: 120 sq ft
Openings deducted: 51 sq ft
Net area: 421 sq ft
Total w/ waste: 463.1 sq ft
Sheets needed: 15
Shopping List
- • 15 sheets of 4' × 8' drywall
- • 14 × 5-gal buckets of joint compound (3 coats, all-purpose)
- • 4 × 75-ft rolls of paper tape (with corners)
- • 1 × 5-lb boxes of screws (16" OC)