The Pylex Central Stair Stringer Kit - 3 Steps is a kit including 3 stringers of 3 step model # 13903 and 4 central stair stringer system model # 13925. The central stair stringer system allows you to join and solidify 3 Pylex steel stringers as well as its steps to obtain a unique and modern central stringer. It features an allowable load of 100-lb/ft² and an ultimate load of 144-lb/ft². This stringer allows for the installation of 11-in deep steps and is compatible with wood, steel, fibreglass steps, etc. It is ideal for a 30-in high structure and is equally suitable for a structure between 26 1/2 and 33 1/2-in high. The stair stringer allows for the installation of an 11 in deep step.
- Sturdy metal construction ensures durability 
- Powder-coated finish offers a stylish look to your deck 
- Innovation with a modern look 
- Allows several Treads finishes: steel, wood, fiberglass, etc. 
- Admissible load: 100-lb/-ft²; ultimate load: 144-lb/-ft² 
- Allows for the installation of an 11-in deep step 
- Allows installation of 11 in D treads 
- Pre-drilled holes ensure easy stair attachment