Volumetric
More finish off site. Check the transport envelope and the crane lift plan.
CoreBridge Sourcing Applications for Alternative Buildings
People who searched a brand often need a site office, a camp block, a warehouse or a classroom, not a logo. CoreBridge Sourcing rewrites that use into purchase requirements. The four method tags below are comparison lenses. They do not mean this desk fabricates the building.
Panelized
Denser freight. More site assembly and weather exposure.
Foldable
Ships compact. Confirm unfolded size, hinges and the foundation interface.
Steel systems
Primary frame plus purlins and girts. Confirm span, eave height and cladding.
Uses that change what must be bought
Contractor site offices
Ask for occupancy, stair, skirt, electrical rough-in and whether the unit must move again. A shell price that stops at the floor line leaves the stair to another contract.
Workforce camps
Bed count, washrooms, kitchen loads and camp water and power are infrastructure, not decorations on a container shell. Write them as included, excluded or buyer-supplied.
Warehouses and workshops
Clear span, door height, collateral load and any crane beam belong in the frame brief. A warehouse note a buyer might write is an 80 ft clear span, a 20 ft eave height, 30 ft bay spacing, a 14 ft by 16 ft door opening, 5 psf collateral load, and a 10-ton crane marked excluded. A standard bay quote does not include a crane unless the line says so.
Classrooms and clinics
Exit width, accessibility, acoustic separation and energy criteria follow the authority having jurisdiction. Do not copy a residential HUD Code label onto an IBC occupancy.
Constraints to confirm for the site
Jurisdiction and code path
Name the state or city and the adopted IBC or IRC edition if the buyer knows it. Manufactured housing under HUD Code, state modular approval and recreational-vehicle rules are different regimes. The supplier should say which path its documents address. This desk does not stamp drawings.
Transport and lift
Module dimensions and the transport envelope decide whether a volumetric box can reach the gate. Panelized packs may clear a tighter road but need a laydown area. A foldable unit needs room to unfold and a crane lift plan that matches the unfolded weight, not only the shipping weight.
Foundation interface
Piers, slab, stem wall or ground anchors change both price and schedule. Ask for anchor layout and the reaction loads the foundation designer must carry. Do not treat a factory skid as a finished foundation.
Envelope performance
Request the wall and roof assembly, insulation R-value or thermal transmittance, and the fire-resistance rating only where the occupancy needs it. Coastal or industrial sites should add a coating note for the primary frame and secondary steel.
Turn the use into a requirement, then request quotes
Write the occupancy, the method you will consider, the destination and the scope label. CoreBridge Sourcing will ask plants for alternative systems on that sheet.
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