Corral Design Calculator

Size working facility pens, alleys, and crowding areas. Calculate pen areas and processing time for your herd.

Herd Size

head

Processing Rate

head/hr

Crowding Pen Capacity

head

Chute Throughput

head/hr

Alley Width

inches

Tab to move between fields

Total Pen Area

2,000 sq ft

≈ 8 one-car garages

Processing Time

3.3 hours

Total Corral Footprint

3,458 sq ft

≈ 15 one-car garages

Crowding Pen Size210 sq ft

Holding Pen Size1,000 sq ft

Alley Length36 ft

Alley Area90 sq ft

Chutes Needed1

How to Use This Calculator

Enter Herd Size, Processing Rate, and Crowding Pen Capacity.
Set Chute Throughput and Alley Width.
Review Total Pen Area (sq ft) and Processing Time (hours).
Check Chutes Needed if your processing rate exceeds chute capacity.
Use the chart to visualize the facility area breakdown and explore different scenarios by adjusting inputs.

How the result changes with Herd Size

Herd Size	Total Pen Area	Processing Time	Total Corral Footprint
501	10,020 sq ft	16.7 hours	15,488 sq ft
1,751	35,020 sq ft	58.4 hours	52,988 sq ft
3,250	65,000 sq ft	108.3 hours	97,958 sq ft
4,500	90,000 sq ft	150 hours	135,458 sq ft

Herd Size: Maximum number of cattle to process at one time.
Processing Rate: How many head can be worked per hour through the chute.
Crowding Pen Capacity: Number of head the crowding pen should hold per batch.
Chute Throughput: Head per hour through the squeeze chute.
Alley Width: Width of the lead-up alley (26-30 inches for mature cattle).

Total Pen Area: Total pen space needed at 20 sq ft/head.
Crowding Pen Size: Crowding pen area at 14 sq ft/head.
Holding Pen Size: Area for animals waiting to be worked.
Alley Length: Length of lead-up alley to chute.
Alley Area: Floor area of the lead-up alley based on width and length.
Chutes Needed: Number of squeeze chutes needed to match your processing rate.
Processing Time: Time to work entire herd, limited by the slower of processing rate or chute throughput.
Total Corral Footprint: Total facility footprint including pens, alley, and funnel.

Identify All 5 Input Parameters
Herd Size, Processing Rate, Crowding Pen Capacity, Chute Throughput, Alley Width
Herd Size = 100 head, Processing Rate = 30 head/hr, Crowding Pen Capacity = 15 head, Chute Throughput = 30 head/hr, Alley Width = 30 in = 5 input(s) provided
Calculate Total Pen Area
Herd Size × 20 sq ft/head
100 × 20 = 2000 = 2000 sq ft
Calculate Crowding Pen Size
min(Crowding Pen Capacity, Herd Size) × 14 sq ft/head
min(15, 100) × 14 = 15 × 14 = 210 = 210 sq ft
Calculate Holding Pen Size
max(Crowding Pen × 2, Herd Size × 10)
max(210 × 2, 100 × 10) = max(420, 1000) = 1000 sq ft
Calculate Alley Dimensions from Alley Width
Alley Area = Alley Length × (Alley Width ÷ 12)
36 ft × (30 in ÷ 12) = 36 × 2.5 = 90 sq ft (36 ft long × 2.5 ft wide)
Determine Chutes Needed from Chute Throughput
ceil(Processing Rate ÷ Chute Throughput)
ceil(30 ÷ 30) = ceil(1) = 1 chute(s)
Calculate Processing Time
Herd Size ÷ min(Processing Rate, Chute Throughput)
100 ÷ min(30, 30) = 100 ÷ 30 = 3.3 hours
Calculate Total Corral Footprint
Total Pen + Crowding Pen + Holding Pen + Alley Area + Funnel Area
2000 + 210 + 1000 + 90 + 158 = 3458 sq ft