← Agricultural Structures & Greenhouses

Agricultural Structures & Farm Buildings

Planning of the farmstead (layout, orientation, drainage, hygiene), building materials and roofing, livestock housing — cattle and buffalo sheds (space allowance, stall dimensions, manger, gutter, floor), dairy barns, calf pens, sheep and goat sheds, poultry houses (deep litter, cage), piggery — ventilation and orientation, farm stores, threshing floors, compost pits, farm roads and fencing, with space-requirement tables and worked layout examples.

📑 Contents (10 sections)

Last reviewed 1 Oct 2026 · 9 min read

Farm structures — scope

Agricultural structures are the buildings and facilities of a farm that house animals, store produce, shelter machinery, and support farm work: animal sheds, poultry houses, grain and fodder stores, machinery sheds, farm house/workers' quarters, threshing floors, compost/manure pits, milk rooms, farm roads, fences, water supply and drainage.

Design aims: economy; durability; hygiene and animal welfare; convenience for work (labour saving); flexibility for expansion; safety; protection of produce. Standards are published by BIS (IS codes), the Department of Animal Husbandry and Dairying, NDDB and agricultural universities.

Planning the farmstead

Principle Application
Location On high, well-drained ground; away from flood and from the residence by a safe distance (prevailing wind carrying odour away); close to roads, water and power
Layout Group buildings by function; keep animal housing away from the dwelling and the well; allow future expansion; short, direct movement paths (feed store near sheds, milk room near the road)
Orientation In India the long axis of livestock sheds is usually east–west so the sun does not enter the shed directly in the day and the roof overhang shades the walls
Ventilation and light Cross-ventilation, ridge openings, wide eaves
Drainage Floor slope and drains lead away from the buildings; manure pit downwind and downhill of the shed and well
Water and power Adequate supply and pressure for drinking, washing and cooling
Biosecurity Separate entry, footbaths, quarantine pens, isolation for sick animals

Materials and construction

  • Foundations: stone/brick masonry or concrete to a depth for the soil's bearing capacity (typically 0.45–0.6 m below the ground in sound soil).
  • Walls: brick, stone, concrete block, mud (low cost), bamboo/wood, GI sheets; half walls (about 1–1.2 m) with open wire-mesh or pipe grills above for ventilation in livestock houses.
  • Floors: cement concrete, brick-on-edge, or compacted earth with a firm surface; non-slippery, easily cleaned and slightly rough (grooved); the slope about 1 in 40 (2.5 %) toward the drain for cattle, less for poultry.
  • Roofing: asbestos-free fibre-cement sheets, GI/colour-coated sheets, clay tiles, thatch/palm, RCC for permanent stores; insulation or false ceiling/paint white reflective coating for heat reduction; ridge height and overhang to throw rain away.
  • Roof pitch: about 20–30° (steeper for thatch).

Cattle and buffalo housing

Housing systems

System Description
Conventional (tie-stall, tethered) Animals tied in stalls with individual manger; easy individual feeding and milking, common in India; needs more labour
Loose housing Animals roam in a covered resting area and open paddock; feeding and milking separate; less labour, better health, more space
Free-stall barn Individual lying cubicles (free to leave), alley, feeding passage — large commercial dairies

Space allowances (typical; check the code or scheme norms)

Animal Covered area (m² per head) Open paddock (m² per head)
Adult cow (cross-bred) About 3.5–4.0 About 7–8
Adult buffalo About 4.0–4.5 About 8–9
Bull About 9–12 About 25
Calf (up to 6 months) About 1.0–1.5 About 2–3
Heifer (6–24 months) About 2.0–3.0 About 4–6

Tie-stall dimensions (adult cow, approximate)

Part Dimension
Standing space (stall) length × width About 1.7 m × 1.1–1.2 m for cows (about 1.8–1.9 × 1.2–1.3 m for buffaloes)
Manger Width about 0.6–0.7 m, bottom flat/rounded; front wall height about 0.4–0.5 m; height of the inner wall about 0.3 m; length per animal about 0.6–0.7 m (equal to the stall width)
Gutter (drain) Width about 0.25–0.3 m, depth about 0.05–0.08 m at the head and 0.1 m at the outfall; slope along the gutter 1 in 100–1 in 200
Feeding passage About 1.2–1.5 m (for single-row)
Service passage (behind the animals) About 1.5 m for one row; 2.0–2.5 m for a double row (tail-to-tail)
Roof height About 2.5–3.5 m at the eaves; 3.5–4.5 m at the ridge
Floor slope 1 in 40 toward the gutter

(Orientation of rows: head-to-head (face-to-face) or tail-to-tail; tail-to-tail is favoured in large dairies for easier cleaning and milking; head-to-head eases feeding.)

Worked ExampleExample — dairy shed for 20 cows

Space check for a loose-housing dairy with 20 adult cross-bred cows, using 3.75 m² covered and 7.5 m² open per cow:

  • Covered area .
  • Open paddock .

If the shed is 5 m wide (a single slope with a feeding manger along one side), its length is m. The manger length for all at one time (0.6 m per cow) would be m — fitting inside the 15 m length.

For a tie-stall layout in a double row (tail-to-tail) with 10 cows per row: length of each row m (standing width 1.15 m); the width manger 0.65 + stall 1.7 on each side m, plus a central passage of 2.0 m and two feeding passages of 1.2 m each = m total.

Dairy-farm facilities

  • Milking parlour or milk room (washable floor, drain, water, screened/closed from flies), cooling facilities (bulk cooler), feed and fodder store, silage pit, calf pens, maternity (calving) pen, isolation pen, manure storage, biogas plant, wash area and cattle crush.
  • Fodder storage: hay barn, silage pit/tower, chaff cutter room.

This chapter is in the syllabus of

Open an exam to see where this chapter sits in its syllabus, and to practise it.