When referring to commonly used tarps, it is usually referring to canvas or plastic covering materials used in tents, awnings, truck tarps, camping tents, and other applications. Here are some common tarp types:

1. Canvas tarpaulin: Canvas tarpaulins are usually made of canvas material, such as cotton canvas or polyester canvas coated with a waterproof coating. They are commonly used in tents, awnings and outdoor camping tents because of their good durability and water resistance.

2. Plastic Tarps: These tarps are usually made of plastic materials such as polyethylene (PE) or polyvinyl chloride (PVC). They are commonly used in truck tarps, industrial coverings, tents for fairgrounds, and more because they are weather and water resistant.

3. Sun tarp: Sun tarpaulin is usually a kind of ultraviolet (UV) sunshade material used for outdoor awnings, gazebos and outdoor appliances. They can help reduce sun exposure and provide a shady place to rest.

4. Fireproof tarpaulins: These tarpaulins have fireproof properties and are usually used in special occasions such as field events, exhibitions and construction sites for added safety.

5. Transparent tarps: Transparent tarpaulins are usually made of plastic and have a transparent or translucent appearance. They are used in exhibitions, conservatories, open-air events and special occasions to provide natural light and views.

6. Refrigerated Tarps: These tarps are often used to refrigerate trucks or cargo to maintain cold conditions. They usually have insulating and moisture-repelling properties.

The choice of tarp depends on the specific use and needs, including factors such as durability, water resistance, UV protection, weight, and transparency. Different types of tarpaulin materials have their own advantages and applicability, so when choosing a tarpaulin, it needs to be selected according to the specific requirements of the project.