RTA or Ready-To-Assemble Bathroom Vanities can be a great way to save money on your new bathroom or bathroom remodel. Whether you are a novice DYI homeowner or an experienced remodeler, ready-to-assemble cabinets are starting to offer the same custom look of the more expensive brand names, while still offering easy assembly and long lasting durability. There is a misconception that knockdown furniture has a shorter life span and can easily warp or bubble from water.