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Enter the number of horses and the space type. A stall is 144 sq ft per horse (12 ft by 12 ft), a turnout paddock is 2500 sq ft per horse (50 ft by 50 ft), and pasture is 43560 sq ft per horse (1 acre). The calculator gives the total area in square feet and acres, the side of a square pen, and the fence length around a square pen. Results are planning estimates, not a substitute for local rules.
Total area equals horses multiplied by the space per horse for the chosen type. Four horses in paddocks need 10000.00 sq ft, which is 0.23 acres, with a square side of 100.00 ft and 400.00 ft of fence. Two horses on pasture need 87120.00 sq ft, which is 2.00 acres, with a square side of 295.16 ft and 1180.64 ft of fence. A square is a planning shape only: real pens are usually rectangles, and fence length rises for long narrow pens. How many acres per horse you need depends on layout, and this horse pen layout guide covers stalls, paddocks and pasture.
A 12 ft by 12 ft stall suits most horses, with larger stalls for large breeds and mares with foals. A 50 ft by 50 ft paddock is a common minimum turnout, but it is not grazing: it is exercise ground that needs footing and drainage. Pasture is different again: the common guide is 2 acres for the first horse and 1 extra acre per additional horse for grazing, so this calculator's 1 acre per horse is a turnout minimum, not a full grazing allowance.
A round pen is a training tool, not a turnout pen. A 50 ft diameter round pen suits basic groundwork and longeing, while a 60 ft diameter pen suits most training and riding work. Round pen fence length equals pi multiplied by diameter, so a 60 ft pen needs about 188.50 ft of fence before a gate allowance. Keep round pen panels at least 5 ft high, 6 ft for energetic or jumping horses.
Put pens on high, well drained ground with a slight slope away from shelters, and avoid low corners that turn to mud. Sand, gravel or woodchip footing lasts longer than bare earth in a small paddock. Use safe, visible fencing with no sharp edges, keep gates wide enough for a horse and handler, and check fence lines weekly, because a loose board or wire is a common cause of injury.
It depends on use: 144 sq ft per horse for a stall, 2500 sq ft per horse for a turnout paddock, and 43560 sq ft (1 acre) per horse as a pasture minimum in this calculator.
A common guide is 2 acres for the first horse and 1 extra acre per additional horse for grazing. This calculator uses 1 acre per horse as a turnout minimum, so grazing herds need more.
A 50 ft diameter pen suits basic groundwork, and a 60 ft diameter pen suits most training and riding work. Larger pens suit advanced work and energetic horses.
About 188.50 ft of fence, from pi multiplied by 60 ft, plus extra for a gate and panel overlap.
A 12 ft by 12 ft stall, 144 sq ft, suits most horses. Larger breeds and mares with foals need bigger stalls.
A 50 ft by 50 ft paddock, 2500 sq ft, is a common minimum turnout per horse. Larger paddocks stay drier and give more room to move.
Horses that get on well can share a large pen or pasture, but stalls are individual. Watch for bullying at feeders and water, and separate horses that do not mix safely.
Minimum stall size, stall area and stable total from horse height.
Daily water for horses by weight, workload and climate.
Daily hay, grain, water and bales from body weight, workload and waste allowance.
Indoor, outdoor and total pen area plus square pen sides for cows.
Estimated due date, foaling window, days remaining and progress for mare.
Acres needed, acres per horse, paddock size and hectares for horse pasture.