Proposal — Density Screen, Reference Colocation Campus hall DH-02

1. What we already found

We ran your hall through the capacity engine before writing this. The following is not a claim about what we might do; it is what the constraint set already says, on the inputs you supplied.

2. What this engagement answers

What stops this hall first, and how far can it go?

You receive: Density Screen document (HTML and Markdown), the first six rungs of the headroom ladder, and a data request you can hand your own engineers verbatim.

• The binding constraint as the hall stands, with the basis stated in engineering units.
• Deployable racks of your target platform, as found and after the costed ladder.
• The item that sets the date.
• Every cooling architecture screened against the same constraint set.
• The list of inputs still assumed, each with why it binds and where to get it.

3. What we need from you

Intake is 83% complete. Each row below is a number that moves the answer and that nobody has measured. Anything you cannot supply is filled from a library default and named as an assumption in the deliverable — nothing is invented silently.

4. Fee, timing and terms

Fixed fee. We do not bill hours, because you are buying an answer.

5. What is outside scope

This is an engineering opinion supported by a documented model. It is not a design package and confers no design liability. Specifically outside scope:

• Stamped design drawings, or any deliverable requiring a professional engineering signature.
• CFD of the hall — available as a priced add-on or a later phase.
• Equipment selection, bill of materials, pricing or procurement. We quote no equipment and take no margin on hardware.
• Structural sign-off. Our floor-loading check is a screening calculation only.
• Electrical protection and arc-flash studies.
• Commissioning, migration planning and tenancy strategy.

6. How the answer is produced

• Thirteen independent constraints across electrical, thermal and physical domains are evaluated over one model of your hall. The envelope is the minimum; the binding constraint is the one that produced it.
• Each constraint reports what relieves it, what that costs and how long it takes, so the answer is an ordered ladder rather than a single number.
• Every quantity carries an evidence class. A number you supply is your measured data; a number we fall back to is an assumption and is labelled as one. A model applied to measured data stays a model.
• The document cannot assert measurement over a modelled quantity — that check runs automatically before anything is released.
• You receive the model, not just the conclusion, so you can re-run it when your inputs change.

7. To proceed

Commission the engagement and you will receive an intake link for the hall's numbers. The clock starts when the intake is complete, not when payment clears.

Appendix A — Assumptions, provenance and validation status

Every number in this report carries an evidence class. The class of a computed number is never higher than the weakest of its inputs, so a model applied to measured data yields a modelled number and never a measurement.

E5 means supplied by the client — a declared rating, contract term or design value, or the client's own data as given. It is not a measurement we made, and it has not been verified by a site survey.

A.1 Assumptions relied upon

A.2 Sources

A.3 Provenance of headline quantities