Brief
Write use, occupancy, footprint, height and whether the stay is temporary or permanent.
Scope checkpoints
CoreBridge Sourcing Roadmap for Alternative Building Quotes
This roadmap is a sequence for deciding whether an alternative building system is specific enough to price. It is not an environmental pledge and it is not a supply agreement with any searched brand. CoreBridge Sourcing is not a manufacturer or authorized dealer.
Brief
Scope
Evidence
Matrix
Decision
Send open items
Five checkpoints before an alternative is accepted
Scope
Pick shell, delivered, installed or turnkey, and list foundation and utilities as in or out.
Evidence
Ask for drawings, loads and the plant documents that name this system.
Matrix
Mark every line included, excluded, substituted or waiting.
Decision
The buyer accepts or rejects deviations. The desk does not award the job.
Open choices and the proof that closes them
Choices still open
MethodVolumetric modules finish more off site but may miss a tight road. Panelized packs travel denser and assemble in the weather. Folding units need an unfold procedure.
Repeat or customA published module size is faster to compare. An unusual clear span, crane or local energy rule needs project-specific engineering hours.
Frame steelHot-rolled or built-up primary members versus cold-formed light-gauge studs are different systems. Do not mix their span tables.
Evidence to request
GeometryModule dimensions or bay spacing, eave height, door openings and the transport envelope. One acceptance row can read 12 ft module width, 40 ft module length, transport width held under 12 ft, foundation reactions in kips, and G90 coating on secondary steel.
LoadsDesign wind speed, exposure, ground snow load, seismic design category, live load and collateral load.
EnvelopePurlin and girt spacing, insulated metal panel or single skin, coating, thermal transmittance, fire-resistance rating where required.
Acceptance gates
CodeThe quoted file names the jurisdiction path. IBC, IRC and HUD Code are not interchangeable stamps.
CommercialUSD currency, quantity, destination, delivery window, and per-module or whole-project budget if the buyer offers one.
DeviationsAny substituted member, panel or exclusion is initialed by the buyer before the quote is treated as responsive.
Checks while the roadmap is still open
What if the only known fact is a brand search?
Keep the brand as background and stop the price request until use, size and destination exist. Otherwise plants will answer different buildings.
Can a standard unit skip the load lines?
No. The quotation must state its wind, snow and seismic basis, and qualified project professionals must check that basis against the adopted site criteria. Silence is not acceptance.
When is a shell quote the wrong comparison?
When the project needs the module set, skirted and connected to utilities before occupants arrive. Compare installed or turnkey scopes with the same exclusions, or compare shells with a separate local-trade budget that you control.
Who signs the structural calculation?
The engineer engaged for the project or the engineer the supplier identifies for that quote. CoreBridge Sourcing does not seal calculations and does not claim AISC, AWS or IAS status.
Send the open specification items
- Method still under consideration
- Loads and jurisdiction that are known
- Scope label and exclusions
- Documents you need before acceptance
The form starts a quote request for alternative systems. It does not reserve a brand-name building.