The poultry shed brief: what your designer needs before drawing line one

Most shed projects start the same way: an email with a site plan attached and a sentence like “we’re looking at four new grower sheds.” That’s a perfectly good start — but the distance between that email and an accurate proposal is measured in the questions that follow.

Here’s what closes the gap fastest.

The essentials

1. Site information — a survey or at least a contoured site plan. Falls across a 150-metre shed drive cut/fill, slab steps and access design more than almost anything else.
2. Shed count and intended use — breeder, broiler, layer or pig housing changes ventilation, equipment loads and internal layout fundamentally.
3. Equipment supplier — the equipment package determines penetrations, fan wall layout, feed silo positions and many structural loads. If the supplier is already chosen, say so.
4. Indicative shed size — even a rough length × span lets the structural concept start in the right place.
5. Council or planning context — is this a new approval, an amendment, or building on an existing approval?

Helpful but not blocking

• Geotechnical report (it can follow, but footing design waits for it).
• Preferred construction approach — local builder, equipment supplier’s build team, or tender.
• Staging intentions: will sheds 5–8 follow in two years? Designing variant logic for the full site from day one is far cheaper than retrofitting it.

What happens when information is missing

Nothing stops — but assumptions get made, and assumptions get documented. A proposal written against an unconfirmed equipment package will carry an allowance and a note; if the package changes after design development, the fan wall redesign is a variation. The earlier the real information lands, the more of the budget goes into design instead of rework.

The brief doesn’t need to be polished. It needs to be honest about what’s decided and what isn’t — the design process is built to handle the rest.