17. 52 x 4. 25 x 3 inch wall mounted barbell holder top: specially designed with a screw hole-to-hole spacing 2, 12 & 2 inches, Yes4All bar hanger is compatible with 12, 14 & 16-Inch wood studs 4. 5mm thick steel construction: constructed of 4. 5mm thick steel plate and covered with a Black paint coating finish, our vertical barbell rack stands for years without corrosion or breaking apart