Volumetric
Closed modules. Check the transport envelope and the crane lift plan before finish level.
HarborSource Sourcing project uses and site requirements
A construction office, classroom, workshop or crew camp changes occupancy, dimensions, services and the delivery sequence. This page turns the intended use into requirements that an independent factory can quote. HarborSource Sourcing does not certify a system or select a supplier for the buyer.
HarborSource Sourcing is an independent sourcing partner. It is not willscot, not a manufacturer or authorized dealer, and it compares alternative products only.
Panelized
Flat elements. More site assembly and more weather exposure during erection.
Foldable
Ships compact, opens on site. Confirm the unfolded footprint and the joint at the fold.
Steel systems
Primary frame, purlin, and girt. Clear span and eave height drive the package.
Uses rewritten as purchase conditions
Active construction yards
Access roads, overhead lines, and a short hire period. Delivery stages often split into pad-ready, set day, and power-on. Write who owns each stage.
Education swing space
Term dates, occupant load, and an accessible route. A sales photo of an office does not answer a classroom fire or acoustic question.
Workshop and laydown
Clear span in feet, door size, and any crane inside the building. Design live load on the slab is a project number in psf, not a catalog default and not a borrowed office value.
Crew camps
Bed count, showers, and a kitchen load. Camp infrastructure outside the module is easy to leave out of a unit price.
Confirm these before a use is treated as solvable
Intended project use
Name the activity, the hours, and whether people sleep, work, or only store goods. Mixed uses need the stricter requirement called out, not averaged.
Documents and the code conversation
Ask which drawing set, calculation, and inspection record apply to the quoted system. IBC and IRC are not the same path as HUD Code, and a state modular program is not an RV standard. HarborSource Sourcing does not claim any of those approvals.
Delivery stages
Separate factory complete, arrival, set, dry-in, and utility connection. A date that only covers the factory gate will miss a school term or a pour schedule.
Site constraints
Record gate width, overhead clearance, soil the foundation designer needs, and the crane position. Volumetric modular construction fails quietly when the street cannot take the box. Panelized construction shifts that risk into site labor and weather.
Standard layouts help when the published module dimensions fit. A custom frame is the honest path when clear span, wind speed, or a neighbor easement will not. Compare those choices in the inquiry list, then send the constraints you already know.
Insulated metal panel, cold-formed steel, and hot-rolled steel are material paths a supplier may propose. Each path needs a coating note and a fire-resistance rating discussion matched to the use. Do not treat a wall sample as the whole envelope.
Foundation interface, anchor layout, and utility sleeves should be sketched even roughly. A quote that stops at the floor line leaves the buyer holding the slab, the grounding, and the ramp. Say that in writing so the later number is readable.
Carry the use into a factory request
Write the activity, the jurisdiction, the loads on hand, the quantity, and the destination. Keep shell and turnkey from sharing one price cell. HarborSource Sourcing will organize the questions; it will not certify the building.
Send Project Requirements