Should you buy a ready-made first aid kit or build your own?

If you’re starting from scratch, buying a ready-made kit is often cheaper and easier than buying every item separately. You can then add anything extra you need. Building your own makes more sense if you already have supplies or need a very specific kit.

Start with the kit’s purpose

Think about where the kit will be kept, who may need it and what they are likely to do. A home kit, travel pouch and sports kit do not have to contain the same things. For a home kit, start with what you may want to keep at home; for a trip or activity, choose supplies that suit that plan.

Compare the cost and contents

For example, in September 2026, St John’s Personal First Aid Kit was $44.95, compared with $54.48 for its contents bought separately, before delivery. Check current prices and compare the actual contents.

Before you buy, read the contents list rather than relying on a label such as “home”, “travel” or “sports”. Check the amounts and sizes, whether packaging is sterile where needed, and any expiry date or storage instructions. Keep the kit dry and easy to reach, and check that sterile packs stay sealed and in date.

A pre-packed kit may still need additions or substitutions for your household or activity. Keep a note of anything you change so the contents list still matches what is inside.

When to build your own

Build a kit when you already have a clear contents list, need particular amounts, or want supplies for a specific activity. You will need to choose a container, buy the items in the sizes and amounts your list calls for, keep products in their original packaging and follow their storage instructions. Include the time and cost of replacing items as well as the first purchase.

For a workplace kit, consider the work being done, the people there and how quickly help can arrive. A label or marketing claim alone does not tell you whether a kit suits the site.

Keep the kit ready to use

Whichever option you choose, keep the kit where people can reach it, check it after use and replace supplies that are missing, expired or no longer usable. If you need a different container, see how to choose a first aid kit bag or box. For regular checks, see what to check when buying refill supplies.