RTA Cabinets are produced from various wood types. The main materials used are particle board, MDF (medium density fiberboard), and high quality solid wood which undergo price deduction. With that said, it is possible to find particleboard and MDF cabinets sold elsewhere at a cheaper bargain at the expense of quality too. However it is important to understand that in the long run they will cost more as they do not last as long. Particleboard and MDF cabinets are apt to sagging and swelling; especially when exposed to moisture. Additionally, both materials tend to break and split. On these materials screws have a tendency to lose their grip because they are produced from shredded wood or paper. On the other hand, solid wood is stronger giving a good base for nails and screws. The RTA discount kitchen cabinets that you will find at In Stock Kitchens feature a solid plywood cabinet box and solid wood face frames, doors and drawer fronts. These are the identical materials that you will find in superior class and extremely expensive custom cabinetry. Because we manufacture and import our own RTA cabinets we cut out the middlemen and pass the savings to you to create a great bargain.