How to Build a 72-Hour Emergency Kit for Canadian Households
Public Safety Canada's baseline advice doesn't change with the season or the hazard: be ready to be self-sufficient for 72 hours. Most Canadian households don't actually have a kit that meets this standard. This guide covers what belongs in a home kit, what belongs in a winter car kit, and whether you're better off buying a pre-made kit or building your own.
What Is a 72-Hour Emergency Kit, and Why 72 Hours Specifically?
The 72-hour number isn't arbitrary, and understanding where it comes from makes the rest of this checklist feel less like a chore and more like a genuinely useful plan.
It comes from Public Safety Canada, and it reflects the rough window before help typically arrives or services get restored, regardless of what caused the disruption in the first place. A downed power line after an ice storm, a washed-out road after flooding, and a wildfire evacuation order all share the same basic math: emergency services are stretched thin in the first hours and days, and a household that can cover its own needs for that window is one less household competing for limited help.
This guide covers general, year-round preparedness: winter storms, power outages, floods, and evacuations. Think of it as a companion to season-specific guides, like wildfire or heat-specific prep, rather than a replacement for them. Our broader look at emergency preparedness for Canadian families covers the planning side of this, building a communication plan and knowing your household's specific regional risks, in more depth than a packing list alone can.
With the "why" covered, here's exactly what goes in the kit itself.
What to Pack in a Home Emergency Kit
The core list doesn't change much no matter which Canadian guide you check. Red Cross Canada and Canada.ca both point to the same basics.
Category | What to Pack |
Water | 4 L per person per day, 12 L minimum per person for 72 hours |
Food | Non-perishable, no cooking or refrigeration required |
Light | Flashlight, plus spare batteries |
Communication | Battery or hand-crank radio |
Medical | First aid kit, any prescription medications |
Documents | Copies of ID and insurance documents |
A couple of these are worth a second look. The water figure adds up fast: a household of four needs close to 48 litres to cover the full 72 hours, which is heavier and bulkier than most people picture when they first read "12L per person." The radio matters more than it seems like it should, too. If cell towers go down during a major storm, a hand-crank or battery radio is often the only way to receive official updates, since it runs on broadcast signal rather than cellular infrastructure that can fail at the exact moment you need information most.
Power deserves its own callout beyond the radio. Phones, medical devices, and communication all depend on it, and it's the category most kits get wrong, either skipped entirely or covered with a single spare battery that runs out in an hour. Our guide to preparing for power outages during Canada's weather warnings covers keeping devices charged and a family contact plan in place before a warning is even issued, which pairs directly with the kit itself.
That covers the kit that stays at home. Canadian winters call for a second kit that lives in the car.
Building a Winter Car Emergency Kit
Getting stranded on a rural highway in a snowstorm is a genuinely different emergency than losing power at home, and CAA's winter driving guidance reflects that.
Jumper cables
Ice scraper and snow brush
Sand or kitty litter for traction
Blanket
Warm clothing and boots
Non-perishable snacks
First aid kit
Flashlight
Shovel
Winter outages and winter driving risk often overlap more than people expect, an ice storm that knocks out power at home is frequently the same storm making highways dangerous at the same time. Our breakdown of power outages across Canada, east versus central versus west covers how ice storms, wind events, and wildfire smoke each create different regional risks worth planning around, both at home and on the road.
You don't necessarily need a second power station just for the car. A simpler approach: move the same DELTA 3 Max Plus from the front-hall closet to the trunk before a long winter drive.
With both kits covered, the last decision is whether to build them yourself or buy one ready-made.
Should You Buy a Pre-Made Kit or Build Your Own?
Neither option is wrong, and the right one depends on how much time you actually want to spend on this, and how specific your household's needs are.
Pre-made kits, like the ones sold by St. John Ambulance, are a fast, no-guesswork starting point. They're assembled to meet the same general 72-hour standard covered above, so if you want to check the box today, that's a legitimate reason to buy one. Building your own costs less over time and lets you tailor quantities, dietary needs, and medications to your current household. A household managing a nut allergy or a specific prescription needs a kit a generic pre-made box simply can't account for, but it takes more upfront effort to get right.
There's a middle path worth considering: buy a pre-made base kit, then customize it by adding household-specific items on top, medications, power, pet supplies, rather than treating either option as all-or-nothing. This is often the fastest way to end up with a kit that's both genuinely complete and actually tailored to your household.
Whichever route you take, the kit only works if it's actually maintained.
How to Store and Maintain Your Kit
A kit that's hard to grab or full of expired supplies isn't much better than no kit at all, so storage and maintenance matter as much as the contents.
Store it in a portable, grab-and-go container, a backpack, duffel, or rolling bag, somewhere accessible and not buried behind boxes in the basement. Check and rotate perishable items, food, water, medications, roughly every six months, and put any power equipment on the same six-month cycle, so it's actually charged when you need it, not sitting dead in the closet.
If your household deals with wildfire or heat risk specifically, EcoFlow CA's guide to a 72-hour emergency kit for summer disasters is a useful season-specific companion to this general checklist.
With the kit built and maintained, here's the short version to remember.
Conclusion
A real 72-hour emergency kit covers water, food, first aid, documents, and power at home, plus a separate winter kit in the car. Not just one bag trying to do both.
Build the kit this week, not the week a storm warning is already active. The DELTA 3 Max Plus and 800W Alternator Charger linked above cover the home kit and the car-charging piece, without needing two separate power stations.
FAQs
What should be in a basic emergency kit in Canada?
Water (12 L minimum per person for 72 hours), non-perishable food, a flashlight, a battery or hand-crank radio, a first aid kit, medications, and copies of ID and insurance documents.
Why does Public Safety Canada recommend 72 hours specifically?
It reflects the rough window before help typically arrives or services are restored after a disruption, regardless of the specific hazard involved.
What should I keep in my car for winter emergencies?
Jumper cables, an ice scraper and snow brush, sand or kitty litter for traction, a blanket, warm clothing, non-perishable snacks, a first aid kit, a flashlight, and a shovel.
Is it better to buy a pre-made emergency kit or build my own?
Pre-made kits are faster and take the guesswork out. Building your own costs less over time and lets you tailor it to your household. A middle path, buying a base kit and customizing it, works well for most people.
How often should I check or replace items in my emergency kit?
Roughly every six months. Check expiry dates on food, water, and medications, and recharge any power equipment on the same schedule.
Do I need a different kit for wildfire or heat season?
This checklist covers general, year-round preparedness. If wildfire or heat risk applies to your area specifically, EcoFlow CA's summer-disaster kit guide is a useful companion for those season-specific needs.