Fit doorway 28" to 33" wide (sturdy door trim req. see spec. below) * 12-grip position, great for many exercises & home fitness programs. * Best in class: Thickest (1.8 - 2 mm), heaviest (10 lbs), high grade steel. Support up to 300 lbs. * Easy assembling, storage, and portable. NO DRILLING REQUIRED - J-bracket installation is optional (only if you leave the bar on the door way permanently) * Doorframe friendly with wide contact (the one & only) points