Flat, stackable containers under the bed, supplies on the closet floor, and honest weight math — that's apartment preparedness, and it fits in 600 square feet with room left over. Most advice assumes a garage; if home is a one-bedroom on the fourth floor (where your knees already count the stairs), the plan just needs different geometry, not more square footage.
Water: the heavy, honest problem
Water is the supply that matters most and weighs the most — a gallon runs a little over eight pounds. A three-day supply for two people is manageable anywhere. The three-week version needs planning, not because of space so much as where the weight sits.
Two rules make it easy:
- Spread it, don't stack it. A dozen smaller containers along a wall or under furniture distribute weight the way floors like. One giant barrel does the opposite — and you can't lift it anyway.
- Go flat and stackable. Slim, rectangular water containers are made for exactly this: they slide under a standard bed frame, line a closet floor, and stack two high without drama. Our WaterBrick review covers the container built for exactly this shape; skip anything you can't comfortably carry when full.
Run your household's real number through the water calculator first — it's usually less alarming than people expect, and a number turns "I should store water" into a shopping list.
The apartment's hidden square footage
A small home has more storage than it admits:
- Under the bed — the flagship. Water, a flat bin of food, the bucket kit.
- Closet floors — supplies go under the hanging clothes, in labeled bins.
- Storage ottomans and benches — furniture that earns its footprint. Blankets, the radio, the first-aid kit.
- The gap under the sofa — flat items only, but it's real space.
- One high shelf per closet — light things: batteries, wipes, the paperwork binder.
The test for any spot: can you get to it in the dark, in under a minute, without moving furniture? Storage you can't reach during an outage is just weight you own.
Where this falls short
Small-space storage has honest costs: under-bed containers collect dust and take some floor time to slide out — not a favor to anyone's back — and a three-week water target may simply not fit, which is fine. Store what fits comfortably, know your building's refill options, and let the water calculator tell you the honest gap instead of guessing.
Renting changes nothing
Everything above is furniture-level — no drilling, no modifications, nothing a landlord ever needs to think about. Preparedness in a rental is the same as anywhere: water, food you eat, light, a radio, paperwork. The building is not the plan. The household is the plan.