Types of Poultry Cages: A-Type vs H-Type vs Aviary (With a Decision Table)

The Four Architectures

A-type (ladder) battery cages step cages down the house like a ladder, birds at each tier exposed to open air. Cheapest per bird, coolest in hot climates, simplest to assemble — and the lowest way to leave floor production behind. Our 1950×400×440 mm modules run 3–4 tiers at 450+ cm² per hen, with automation kits bolt-on later.

H-type (large stack) cages enclose each tier in a vertical stack with full automation on every level. They triple birds per building footprint — 8–12 tier houses carry 100,000–160,000 layers — which converts them from "equipment" to "real-estate strategy" once land, buildings or labor get expensive.

Broiler cages apply the same stacking logic to meat birds: ~20 birds/m² at 4 tiers, front troughs, nipples, manure below the zone. Feed conversion and cleanliness gains pay the capital within 8–10 cycles.

Enriched / aviary systems are the doorless welfare architecture: perches, litter, dust-bath and curtain nests on every tier, eggs and manure still automatic. They satisfy cage-free programs at density floor-house economics cannot reach.

Decision Table

The Question That Decides

Ask which input is scarcest on your site: land, labor, capital, or market access. Capital-scarce and hot → A-type. Land/labor-scarce → H-type. Market-access-scarce (premium programs) → aviary. Farms that get this wrong do not fail loudly — they under-produce quietly for fifteen years, which is worse. The layout drawing we prepare with every quote exists to force this question once, properly.