We Manufacture Your Steel Building Kits in the USA & Ship Direct...Worldwide!



  • More durable and stronger than vinyl
  • Hard Baked on Finish for years of performance
  • Easy Installation
  • Optional Built-in “Step Saver” Trim, fully extruded frame for added strength

Plyco Series CTB500 pre-assembled horizontal thermal break windows

Commercial Window: The Plyco Series CTB500 pre-assembled horizontal thermal break windows save you time and money. This means:

Aluminum frame and grids make this window stronger and more durable than vinyl windows.

Available in popular Polar White, Hickory Moss, Bronze and Brown colors using a hard baked finish for years of performance.

Available with Tinted, Tempered, Mirrored or Safety Glass.

Completely pre-assembled and controlled under factory conditions.

Installs quickly using Plyco’s Step Saver optional trim or nailing flange.

For this month’s building specials call (800) 825-0316!

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Watch a video testimonial by a satisfied Worldwide Steel Buildings customer talking about his new steel building kit.

Download These Helpful Guides

Learn how to start planning for your new custom steel building kit with the free building planning kit from Worldwide Steel Buildings.

Free Building
Planning Kit

The Steel Building Info Guide from Worldwide Steel Buildings contains everything you need to now about a steel building kit.

Steel Building
Info Guide

Worldwide Steel Buildings provides this Steel Building DIY Instruction document to help you decide if you can build it yourself.

Steel Building
DIY Instructions

No Worries, No Risk, No Kidding