Start with an original AMH template, drag walls, adjust ceilings, compare floors, reveal framing and building systems, add a shelter concept, calculate room-block area, and build a company-priced parts and labor log.
Eichler-inspired openness and indoor/outdoor rhythm, expanded into an original two-level 4,000 sf program with a larger contemporary hosting kitchen and gathering core. It does not copy a specific historic plan.
2K single-level, 3K two-level, 4K two-level, Modern Atrium 4K, and custom.
Grab a wall edge, snap at six-inch increments, and update dimensions plus room, floor, and total block area.
Toggle nominal 2×4, 2×6, staggered, double-stud, or metal framing; piping; electrical/smart; HVAC/airflow; and sprinklers.
View basement/shelter, main, and upper one at a time or side by side with title blocks and visible concept warnings.
Compact detached, conceptual 20 ft corridor and hatch, integrated basement, or detached family shelter—plus separate parts and coordination notes.
Envelope, all-electric heat pumps, ERV, breeze/hot-cold airflow study, local-first controls, lighting, shades, IAQ, leaks, energy, access, garage, and shelter monitoring.
Concrete/slab, lumber/metal, insulation, drywall, roof, windows, trim, seals, MEP, fixtures, smart boxes, garage and shelter quantities with man-hours and company-private approved rates.
Pick who is in it and for how long, and the shelter stops being a box on the plan. Occupants × days drives the ventilation, water, sanitation and egress numbers, and every one of them lands in the same takeoff, schedules and change log as the rest of the house.
Compact 2–4, Family 4–6, or Extended 6–10. The preset and the duration you set are what every number below is calculated from.
Required airflow is occupants × cfm per person, never below 3 cfm each, held against the filtered ventilation you have actually placed.
Required gallons are occupants × days × gallons per person per day, compared against stored volume and the number of tanks that volume implies.
Conceptual waste runs at half a gallon per person per day and is held against your holding capacity and toilet count, so the shortfall shows up while it is still a drawing.
Escape hatches, ladder height, isolation hatches, passive vent stacks and re-entry checkpoints are counted as scope, not assumed.
Missing escape hatch, no filtered ventilation set, unproven sanitation capacity, and shelter rooms that exceed the modeled footprint each raise a visible warning.
Room fit-out, filtered ventilation capacity, potable water storage, sanitation holding, emergency escape hatch, waterproofing surface, corridor and hatch length, and the shelter plus connector footprint.