Home/The B4 Platform
SEC.04 / The B4 platform
Seven configurations.
One chassis.
Every B4 unit shares the ISO intermodal envelope: the same trucks, the same cranes, the same corner castings, the same spares and the same training. Configuration changes. Logistics never do.
One envelope
ISO corner castings and intermodal dimensions mean every unit rides standard logistics — no permits engineered per load, no special fleet.
Serialized quality
Every unit leaves the line with a serial, a test record and a digital twin — pressure-tested envelope, meggered circuits, flooded wet rooms.
Shared everything
One spares catalog, one maintenance manual, one training course. A technician certified on FOLD services STACK — the fleet stays simple at scale.
B4-F20 // Folding rapid shelter
Fold 20
The first responder of the fleet. Ships flat, six to a truckload; unfolds to a weathertight, insulated shelter with four crew in under an hour. Sleeping, office or exam configurations.
| FOOTPRINT | 20 FT × 8 FT 6 IN — 160 sq ft |
| SET TIME | < 1 hr / 4 crew |
| TRANSPORT | 6 per truck · 44 per 40-ft vessel slot stack |
| OCCUPANCY | 2–4 persons (sleep) / 6 (work) |
| OPTIONS | Wet cell · HVAC · off-grid PV kit |
B4-F40 // Family folding home
Fold 40
Survivor housing without the trailer stigma: a full kitchen, a real bathroom, separated sleeping — folding out of one road load. The unit FEMA missions wish they'd always had.
| FOOTPRINT | 40 FT × 8 FT 6 IN — 320 sq ft |
| SET TIME | < 2 hrs / 4 crew |
| TRANSPORT | 4 per truck |
| OCCUPANCY | Family of 4–6 |
| OPTIONS | ADA layout · arctic kit · hurricane glazing |
B4-X40 // Expandable unit
Xpand 40
Ships as one container, deploys to more than double the floor area with a hydraulic fold-out wing. Command posts, clinics, classrooms, quarters — the swiss army knife of the fleet.
| FOOTPRINT | 40 FT shipped → 640+ sq ft deployed |
| SET TIME | < 4 hrs / 4 crew |
| AREA FACTOR | ×2.1 deployed |
| POWER | Grid · generator · 4.8 kW PV option |
| OPTIONS | Partition kits · lab / med fit-out · comms mast |
B4-ST // Stacked modular housing
Stack
The mass-housing workhorse: crane-set modules rising three storeys, corridors and stairs included, engineered as apartments — not stacked boxes pretending to be them.
| CONFIG | Studio · 1BR · 2BR modules |
| HEIGHT | Up to 3 storeys |
| ENVELOPE | R-30 walls · R-49 roof |
| SET RATE | Up to 40 modules / day / crew |
| OPTIONS | Balconies · breezeways · commercial ground floor |
B4-CP // Workforce village kit
Camp
A complete community in a bill of lading: dorm blocks, DFAC kitchen and dining, sanitation, laundry, recreation and site ops — 100, 250 or 500 beds, commissioned as one system.
| PLANS | CAMP-100 · CAMP-250 · CAMP-500 |
| COMMISSIONING | 10–28 days by plan |
| SERVICES | DFAC · sanitation · laundry · rec · ops |
| UTILITIES | Grid, generator or hybrid microgrid |
| OPTIONS | Gym block · worship / quiet room · security kit |
B4-MD // Clinic & triage
Med
Exam rooms, treatment bays, pharmacy storage and isolation — deployable healthcare that meets the moment, from disaster triage to rural clinic gaps.
| LAYOUTS | Exam ×3 · triage bay · pharmacy · admin |
| ISOLATION | Negative-pressure room option |
| POWER | Generator-ready · UPS circuit for cold chain |
| ACCESS | ADA ramp & door hardware standard |
| OPTIONS | Dental fit-out · tele-med booth · lab bench |
B4-ED // Classrooms & training
Edu
Daylit classrooms that assemble into campuses, with the acoustics, air quality and dignity a classroom deserves — because recovery includes school on Monday.
| CAPACITY | 24 seats per module |
| DAYLIGHT | Clerestory + window wall |
| AIR | MERV-13 ventilation standard |
| ACCESS | ADA throughout |
| OPTIONS | Lab casework · admin suite · covered walkways |
Side by side
The fleet at a glance.
MODEL DESIGNATIONS PROVISIONAL — FINAL PRODUCT NAMES PENDING SELECTION.
| Model | Role | Footprint | Deployed area | Set time | Transport |
|---|---|---|---|---|---|
| B4-F20 | Rapid shelter | 20 × 8.5 FT | 160 sq ft | < 1 hr | 6 / truck |
| B4-F40 | Family home | 40 × 8.5 FT | 320 sq ft | < 2 hrs | 4 / truck |
| B4-X40 | Expandable ops | 40 FT shipped | 640+ sq ft | < 4 hrs | 1 / truck |
| B4-ST | Stacked housing | Module grid | To program | 40 mod / day | Vessel-scale |
| B4-CP | Workforce village | 1.5–5.8 acres | 100–500 beds | 10–28 days | Convoy |
| B4-MD | Clinic / triage | 40 FT class | Config. | < 1 day | 1–2 / truck |
| B4-ED | Classroom | 40 FT class | 24 seats / mod | < 1 day | 1–2 / truck |
Spec it to
your mission.
Configurations, climate packages and quantities — we'll turn your requirement into a priced, scheduled proposal.
procurement@build4-us.com RESPONSE SLA
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