We recommend a table saw as well, although you can build the cart without one. But don't worry if you don't have a table saw; most suppliers will cut the wood for you for a small charge.
While they specialize in making go-karts and minibikes ... for so long that the wooden platforms had started to peel and rot. Then they headed back to the shop and got to building.
Wheelbarrows are great for hauling stuff around the yard, but they have their limits, especially if youre working on a hill, ...