Freeze the technical basis
Before a factory is asked for money, the buyer records occupancy, project city, and the code edition the authority having jurisdiction is using. Wind speed in mph, wind exposure category, ground snow load in psf, and seismic design category are copied from the project criteria when they exist. If they do not exist, the line stays open. HarborSource Sourcing will not invent a design live load to make two quotes look tidy.
Floor loading for a file room is not the floor loading for a toolbox store. Write design dead load and design live load as separate notes. Thermal transmittance or a target R-value belongs with the climate, not with a catalog slogan.
Split the commercial boundary
Each supplier states what is inside the number: primary frame, floor, roof, wall panels, doors, windows, interior finish, electrical rough-in, plumbing rough-in, HVAC, stairs, and connection hardware. Foundations, permits, crane time, and site utilities are either included or named as buyer work. A shell price and a turnkey price are different products even when the floor plan matches.
Quantity uses one unit, modules or building sets. Destination is a ZIP or a port, plus any road limit that cuts the transport envelope. Partial shipments are allowed only if the brief says so. Taxes and duties sit on their own lines.
Read evidence against the offered system
For each alternative, request the manufacturer name, the system name, shop drawings or data sheets, material callouts, and any test report that matches that system. IBC, IRC, HUD Code, ASCE 7, AISC 360, AWS D1.1, IAS AC472, and ISO 9001 are names to ask about. They are not stamps this desk holds, and a general reference is not approval for the site.
Deviations are marked included, excluded, optional, substituted, or waiting. The buyer and the project engineer accept a substitution. The desk only keeps the matrix straight.
