Wall Mounting Recommendations: The most reliable mounting on the： Concrete brick/solid cement wall/solid red brick wall /solid tile wall are a great surface for mounting this pull up bar and dip station. DON'T install on hollow brick wall/honeycomb brick wall/drywall /sandwich panel. you can purchas the lumber and cutting them into 2~4 pieces to be secured to the wall using wood stud screws. And then install this product. If you are mounting on wooden studs on drywall. You need to add to place 3/4" thick piece of plywood (about 2' x 2' square) over the drywall.used large lag bolts to screw into 2x4 wall studs. to the places where the square pipes rest against to wall, to support the weight and not damage the drywall Multifunctional Wall Mounted Pull Up Bar OT126 Doorway Pull Up Bar no Screws OT160 Wall Mounted Pull Up Bar OT103 Doorway No Screws Pull up Bar OT216 Wall Mounted Pull Up Bar OT045601 Doorway Pull Up Bar HK664 Add to Cart Buying Options Add to Cart Add to Cart Buying Options Buying Options Customer Reviews 4.5 out of 5 stars 466 4.0 out of 5 stars 340 4.3 out of 5 stars 340 4.0 out of 5 stars 260 4.0 out of 5 stars 147 4.2 out of 5 stars 689 Price $139.99$139.99 — no data $89.99$89.99 $78.99$78.99 — no data — no data Maximum Weight 440 LBS 330 LBS 440 LBS 330 LBS 330 LBS 330 LBS Install Place Wall Door Wall Door Wall Door Features 2 in 1 Function Adjustable Length No Screws 6-Hole Design Adjustable Length Small-space installation Adjustable Length