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The Magnum Heavy-Duty Window Bars from Guardian Built are made for one purpose—to keep intruders out. These bars use thick, ½-inch welded tubular steel, offering a strong line of defense for any window. The black powder-coated finish adds weather resistance and keeps the bars looking sharp.
They’re practical, low-maintenance, and available in multiple sizes to suit your needs—whether for a home, garage, or small business.
Each size is built to the same strength standards, so you get solid protection no matter what.
● Built with Heavy Steel: Made from ½-inch welded steel tubing that can handle serious pressure.
● Rust-Resistant Coating: The powder coat helps keep out rust and wear from rain, sun, or snow.
● Clean, Simple Design: The bars have a straight, no-frills look that works with most buildings—without drawing attention.
● Strong Mounting Options: Works with tamper-proof safety screws (sold separately) to keep bars securely in place.
● Fits Many Spaces: Great for ground-floor windows, basements, garages, backrooms, and more.
You can mount these bars in a way that suits your setup. Use flush-mount, projection, or inside-frame brackets depending on what your space allows. All brackets and screws are sold separately.
If you're adding these to a window that doubles as an emergency exit, check local safety codes. A Quick Release accessory may be needed (also sold separately) to meet fire escape rules.
You can mount these bars in a way that suits your setup. Use flush-mount, projection, or inside-frame brackets depending on what your space allows. All brackets and screws are sold separately.
If you're adding these to a window that doubles as an emergency exit, check local safety codes. A Quick Release accessory may be needed (also sold separately) to meet fire escape rules.
● One Magnum Heavy-Duty Window Bar (your chosen size)
● Basic installation guide
● (Mounting hardware and Quick Release kits sold separately)
Guardian Built keeps it simple: strong materials, simple designs, and no extra nonsense. These bars are made to protect your space and last a long time. Whether you're a homeowner or securing a rental or small business, the Magnum Series gets the job done without fuss.
Free shipping is provided for all product purchases
A 5% discount is available for the first order after registration