How many will actually use these pieces of furniture?
Make sure that it is not only heat and water resistant, it should be rust resistant, too. Would it be a permanent fixture in your garden or will you just take them out for special occasions.
How you are going to use them? Most gardens are under direct sunlight so make sure to choose the type of outdoor chairs that are not prone to fading and can withstand the sun's direct heat and at the same time water resistant, too.
Where you will be placing these pieces of furniture? Consider the storage space you have and add a few extra pieces for parties and small gatherings would be enough. Don't end up buying too many. Who wants a garden full of furniture? There are some things you need to consider before buying outdoor chairs;
Consider the size of your garden.
Who doesn't enjoy spending summer in the outdoors especially if you have the right outdoor chairs to add comfort and cool you down during hot summer days? Outdoor chairs are usually know as garden sets found in homes with nice lawns or gardens that are always a perfect spot for relaxation or having some chit chats with friends or family especially during summer.