"Quality” grade of stairs will be more affordable options that typically come in standard sizes and configurations designed to fit most homes. These products often represent the most affordable option for a product because they are mass-produced and pre-built. Quality grade products may not offer the same customization options as custom and ultra-custom grade products, but they can still provide excellent performance and good quality at a much lower cost.

"Custom" will be products that have been customized to the buyer’s exact specifications, including size, color, material. These products will typically be the most expensive option for any given product. Custom and ultra-custom grade products usually need to be specially ordered and are not readily available in hardware stores.

“Ultra-custom” will be high-end products that have been customized to the buyer’s exact specifications, including size, color, material, configuration and more. These products will typically be the most expensive option for any given product. Custom and ultra-custom grade products usually need to be specially ordered and are not readily available in hardware stores. Ultimate custom grade is the highest grade on the hierarchy and offers the best durability and most options for customization. These materials will come at a premium cost, but will last longer than other grades.