What type of drywall board is needed to tile a shower wall?

There are three types of drywall board that can be used to tile a shower wall. All are waterproof and reduce the chance of the shower wall being ruined by water absorption and mold.

• Blueboard is the most commonly used drywall board and can be easily found at any lumber yard or home improvement center. It is moisture proof and can be installed like other drywall products.
• Greenboard is the same as blueboard but is made almost entirely of recycled materials. It is more environmentally friendly.
• Concrete board is a heavy drywall product that is used for applications of very heavy ceramic tiles. It is secured with special screws.