The US pathway is a sequence
ICC-ES ESR-5348 covers light-steel framing evaluated for IBC/IRC 2021 with the California and Los Angeles supplements. Then the state process begins.
Product category · Group D · consumer & terminal products
Volumetric modules and flat-pack panels: 80% of the work happens in a factory, and a 100-unit building lands in eight months.
01Connection layer · what we supply
| Product | Delivered as | Note |
|---|---|---|
| Modular apartments | Volumetric modules or flat-pack panels | Stacked to the site's lifting plan |
| Modular hotels | Room modules with finished interiors | Repetition is the cost lever |
| Modular offices | Modules and panel systems | Relocatable and expandable |
| Standard design library | Belle, Harmony, Zurich, Bazzurro, Dalhart, EOLO House | Start from a typology, not a blank sheet |
| Reference programmes | A-Frame Resort, Modular Villa, Townhouse Export | Shapes this supply chain has already shipped |
02Decision layer · the four numbers
| Measure | Modular | Conventional |
|---|---|---|
| 100-unit apartment building | 8 months | 18 months |
| Total project cost | 15–20% lower | Baseline |
| Material waste | Under 3% | 15–20% |
| Work on site | 20% | 100% |
03Connection layer · who builds it
Precision-engineered modular buildings — apartments, hotels and offices — delivered through a verified manufacturing network in East Asia.
Two of those are management-system certificates. ISO 14001 does not set environmental performance criteria, and ISO 45001 does not address product safety. The construction-product evidence is the evaluation report, the fire test and the CPR certificate.
04Trust layer · codes and approvals
ICC-ES ESR-5348 covers light-steel framing evaluated for IBC/IRC 2021 with the California and Los Angeles supplements. Then the state process begins.
Fabrication runs through AISC-certified facilities, and that certificate is specific to the facility. Ask which one, not which company.
The Intertek WH fire test to ISO 3008-1 is a test result, so the buyer should receive the report itself.
An SGS CPR certificate is on the file, and it covers one product scope. Check that the scope matches your construction.
05Execution layer · how we carry it
SVC-02
A site query that lands on the wrong drawing revision.
Every revision is carried in Chinese and English, with the approval held against a frozen revision.
SVC-04
An approvals package started after the design freeze.
We open the code and approval route in parallel with design, so the submission is not the critical path.
SVC-05
A module that fits in the factory and not on site.
Pre-shipment inspection to ISO 2859-1 general level II, with dimensional checks against the approved drawing.
SVC-06
A refused container because of a packing mark.
FOB by default, FCA for inland stuffing, CFR or CIF when we sell the freight. We do not quote EXW.
06Inputs · what to send us
Timber packing and dunnage travel under ISPM 15: heat treatment at 56 °C for 30 minutes, methyl bromide for 16 hours, or dielectric heating at 60 °C for one minute. Wood under 6 mm is exempt. Modules are volumetric, so freight is priced by space and FCL is the normal mode; LCL is impractical and should not be quoted.
07Start
Tell us the market and the unit count. An engineer replies with the approval route and the programme.
Written technical assessment, from eric@dfshk.cn.
Start · short form
One line is enough to start. An engineer answers, not a chatbot.
We answer from eric@dfshk.cn. If you have a drawing or a spec sheet, reply to that message and attach it.