Cheap skateboards are something everyone is looking to find, but there is a difference between cheap skateboards and inexpensive skateboards. Skateboards made from poor quality material which will break and cause parts to be replaced more often then needed, not to mention skateboards with poor quality will not be as safe for you to use. Skateboards that are inexpensive would be made from good quality material, meaning it will perform better and last longer, but it doesn't cost as much as some of the other skateboards.
The two common types of skateboards are the traditional and the longboard. The ways you can tell the difference between the two are the lengths of the decks. The traditional skateboard is used more commonly and is normally shorter than 33 inches, which makes it easier to control for tricks and ramps. The longboard is normally over 35 inches and is most commonly used for cruising. Another thing you need to factor in is the depth of the curve on the board; a deeper curve is going to allow you to master harder tricks. A shallower board is more for beginners, which will make tricks easier for you and will be a lot safer starting out.
When looking for cheap skateboards as a beginner, the best thing to do is buy skateboards that are already assembled. For beginners, before you start skateboarding, you will need to know a skateboard has 4 main parts. The first part is the deck, which is the part you will be standing on, next the trucks and wheels which go underneath the deck lastly the bearings which go inside the wheels.