While not new, since the concept was already described by Christopher Alexander in its architectural theories, it only gathered some traction in programming due to the publication of Design Patterns: Elements of Reusable Object-Oriented Software book in October 1994 by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides, known as the Gang of Four (GoF), that identifies and describes 23 classic software design patterns.
Use a calculator to calculate the stair riser length or the number of steps you'll need. Divide the height from the first floor to the top of the second floor by a predetermined height of your choice for the riser. The typical height of a riser is 6 or 7 inches (15 to 17.5 cm).
No problem! Our standard wood treads are 1 thickness and 11 1/2 deep, and come in lengths ranging from 36 up to 84, and even. longer treads can be made custom. Custom stair treads can be made up to 3 thickness, 30 depth, and lengths over 10 feet long in most species. Just call us for a quote on any stair treads and risers that you don't see listed on our website.