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Foundation Plans by Boxabl Model

Every Boxabl model puts different demands on its foundation — footprint, weight, module connections, wind and seismic ratings. Pick your model for its specific requirements.

Boxabl Casita Studio

361 sq ft · Studio / 1 Bath

The flagship 361 sq ft single-module Casita — now with statewide approvals in Texas, California, and Nevada.

Foundation requirements & plans

Boxabl One Bedroom Casita

722 sq ft · 1 Bed / 1 Bath

The multi-module one-bedroom configuration — a full 1 bed / 1 bath home at 722 sq ft.

Foundation requirements & plans

Boxabl 2-Bedroom Casita

722 sq ft · 2 Bed / 1 Bath

Model BXB-000016 — two 19'x19' modules, 13,000 lbs, rated for 140 mph wind and Seismic Design Category D.

Foundation requirements & plans

Boxabl Baby Box 120

120 sq ft · Towable Studio (RV)

Model BXB-000029 — the 120 sq ft towable unit built to NFPA 1192 RV code, arriving on wheels in late 2026.

Site prep & anchoring guide

Boxabl Phase 2 Lineup

ADU to 3-story multifamily

Boxabl's 2026 catalog: 24 configurations across ten categories — ADUs, single-family, ranch, townhomes, garden apartments, estates, HUD-code homes, workforce housing, RV, and the UFO.

Foundation requirements & plans

Not sure which model — or whether your lot works at all?

Take the 2-minute lot quiz →
Boxabl Foundations
A Division of Oasis Engineering LLC

Professional structural engineering services for Boxabl homes. Licensed engineers providing PE-stamped foundation plans and permit support nationwide.

Services

  • Foundation Engineering Plans
  • Site Feasibility Reports
  • Foundation Certification
  • Manufactured Home Certs
  • For Installers & Dealers

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Contact

info@oasisengineering.com
813-694-8989
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States Served

ALAZARCOCTFLGAIDILINIAKSKYLAMEMDMAMIMSMOMTNVNHNJNMNYNCOHORSCTNTXUSVIUTVTVAWAWVWI

See requirements for all 50 states →

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