Why garden cart wheels are so important?
The most important part of the garden carts is their wheels. They are the only things on your garden cart that have direct contact with the ground. If they are bigger, it will let the garden cart to move easier over roots and rocks. Another reason for the importance of the garden cart wheels is that after some period of usage, the garden cart wheels usually will break first. Then, instead of buying a new garden cart, 
you can try to repair them or buy new cart wheels. So, if you want to use your garden cart long time, when you buy a new garden cart, you should focus on the wheels. There are three main categories of garden cart wheels:
Wooden Garden Cart Wheels
There are not many garden carts with wooden wheels. You can see wooden wheels usually on wooden garden carts. These wheels don’t allow moving heavy things with the cart. You can choose a cart with wooden wheels if you need to move light thing (less than 100 lb). Then the chance to break the wooden wheels is very little. The garden carts with wooden wheels are also very suitable for decoration in your garden. Is there something more beautiful than a wooden cart with flowers in your garden!?
Plastic Garden Cart Wheels
Most of the garden carts are made with plastic wheels. The garden carts with plastic wheels have medium level of capacity (between 200 lb and 300 lb). There is bigger chance to break a plastic wheel after 6 – 10 years, but the good news is that it’s easy to find new wheel for your cart. Also, the plastic wheels are inexpensive – between $10 USD and $20 USD. If you don’t need to move too heavy things, the garden carts with plastic wheels are good choice.
Compressed Air Garden Cart Wheels
If you want to move really heavy things with your garden cart then you need a garden cart with compressed air wheels. Similar to the car’s wheels, these wheels could make the cart capacity over 400 lb. If you buy a cart with compressed air wheels, you’ll have to check the air pressure regularly. Also, these wheels are more expensive that the plastic wheels, you can buy a compressed air garden cart wheel between $20 USD and $40 USD.