Sheep Pen Design for Saudi Heat: Space, Shade and Layout

A good sheep pen in Saudi Arabia is built around enough shade for every animal at midday under a high roof with its long axis running east to west, open sides for airflow, roughly 1.5 to 2 m² of shaded space per ewe plus an open yard, feeders and water points that serve everyone at once, and separate pens for ewes, lambing, lambs, fattening, rams and isolation, with a loading race, a scale and good drainage.

Many farms put up their pens in a hurry and discover the problems in the first summer: animals crowding into shade that is too small, a feeder where the strong eat and the weak go hungry, water heating up in the sun and mud around the troughs. Good design does not have to be expensive, but it has to be planned before the first footing is poured. The figures below are approximate guidance commonly used in intensive and semi-intensive systems; they vary with breed, size and system, so check them with an engineer or a vet who knows your area.

Shade, orientation and airflow first

• Orientation: run the long axis of the shade roof east to west. The sun then travels along the roof and the shade stays underneath for most of the day, instead of sliding outside the pen in the morning and afternoon.
• Roof height: low roofs trap heat. In hot areas a height of roughly 3 m or more at the low edge is a common recommendation, higher on large farms.
• Roof material: bare metal sheeting gets very hot. Insulated panels, light-coloured coatings or an insulating layer reduce the heat underneath. Shade netting is an economical option over yards.
• Ventilation: open or half-open sides and vents near the ridge to let hot air escape. Closed barns trap heat and ammonia.
• Wind and dust breaks: a wall or mesh on the side of the prevailing dusty wind, without blocking all air movement.

For managing heatwaves themselves, see our guide on heat stress in hot climates.

Approximate space per head

These ranges are guidance for planning, not an official standard:

For feeders and water:

• Feeder length when all animals eat at once (restricted feeding): roughly 40 – 50 cm per ewe and about 25 – 30 cm per lamb.
• With feed available all day in self-feeders, much less length is needed because animals do not all eat together.
• Water: at least two drinking points per pen so a dominant animal cannot block the rest, placed in the shade, at a height that suits both lambs and adults.
• Raised feeders filled from outside the pen, so workers do not walk among the sheep to feed.

Plan separate pens before you build

One big open pen means every animal eats the same ration and rams mix with ewes outside the mating season. Plan separate pens from the start, with gates so they can be enlarged or reduced:

1. Ewe pen for dry and early-pregnant ewes.
2. Late-pregnancy and lambing pen close to the workers' quarters so night births are not missed, with individual lambing pens.
3. Lamb area with a creep entrance that lambs can pass but ewes cannot, for early creep feeding.
4. Fattening pen close to the feed store and the loading race.
5. Ram pen out of reach of the ewes, with solid fencing.
6. Isolation and quarantine pen at the edge of the farm and downwind, with its own feeders, drinkers and tools.

How to group animals in these pens and when to move them is covered in organising pens and groups, and setting up the isolation pen in quarantine for new animals.

Floors, drainage, races and the scale

• Floors: compacted earth or sand in resting areas, and concrete with a slight slope around feeders and troughs so water and mud do not collect.
• Drainage: lead wash water and spills away from resting areas and away from the isolation pen.
• Feed store: shaded, dry, raised off the ground and protected from rodents and rain.
• Handling race and loading: a narrow race where animals pass one at a time to a sorting gate and a loading ramp. It saves time on vaccination days, checks and sales, and reduces injuries.
• Scale position: put the scale in that race. Since 1 Muharram 1447, slaughter livestock in Saudi pens and public markets must be sold by weight, and regular weighing on the farm means you know each animal's weight before market day. See our livestock scale buying guide.

Link your pens to your records in Throf

A good barn is half the job; the other half is knowing who is in each pen. In Throf, create a group for each pen using the same name as the board on the gate, move animals between groups when their stage changes, and change the stage of a whole group in one step. With a smart scale in the race and RFID ear tags, the scale reads the animal's tag and saves the weight to its history automatically, with no manual typing. See the sheep farm management page for the full setup.