- Only Brace Certified By The Hurricane Center. Vertical bracing is critical to reduce the chance that the horizontal panels may buckle. Barn Door British Brace Style Interior Barn Doors Barn Door Pantry Barn Doors Sliding As the pressure increases the door bows inward and the ends of the door are pulled toward each other or toward the center of the door as well as causing the roller to tilt on an angle. Garage door vertical brace . Perfect for do-it-yourselfers our installers or any handyman. The pulley is made of galvanized steel for reliability and weather resistance. By Lowes Home Improvement. THIS IS THE ONLY CERTIFIED VERTICAL BRACE ON THE PLANET. Retrofit systems employing horizontal bracing are available but horizontal braces just strengthen the door and do not reinforce the garage doors tracks and thus have limited effectiveness. For a FREE QUOTE call 352-688-7631 or Click Here. The 2002 booklet published by the Institute for Business Home Safety in coope...