Ready-to-assemble cabinets provide homeowners with a high-quality, cost effective alternative to ordering from custom cabinetmakers. Advantages of RTA cabinets versus custom cabinets include affordability, quick and easy shipping, variety, and the convenience of managing your own time and project. In addition, RTA cabinets arrive in a flat box while pre-assembled and custom ones arrive in very large shipments that can be enormously costly and inconvenient to move and store.