Zwinz Steel Stair Stringer 7 Step, Metal Stair Stringers for Deck Height 57 inches, White, Heavy Duty

[High Strength Galvanized Steel] - Our Stair Stringer are made of heavy-duty galvanized steel, with high density, strong load-bearing capacity, durability, wear resistance, and are very suitable for long-term outdoor use [4-Hole Design] - Each flat part of our Stair Stringer is equipped with 4 bolt holes for connecting wooden boards. You can choose to easily place 1 to 4 wooden boards to ensure safety, stability, and no shaking [Easy to Install] - Our packaging includes expansion bolts and wooden nails, a simple 4-step installation process - positioning, drilling with a 3/8-inch drill bit, securing with expansion bolts, and installing wooden boards. No complex programs, saving you time and energy [Multi Scenario Application] - This Stair Stringer provides convenient passages for various occasions and can be installed on wooden walls, brick walls, concrete walls, and even iron, adapting to the installation needs of different scenarios [Multiple Sizes Available] - We offer 7 sizes to meet the needs of different stair heights, ensuring perfect fit and seamless integration into your space. Upgrade your stairs with confidence , Weight: 33.0 Pounds, Manufacturer: Y-buyer