I use door brackets (ordered here from Revain (EXPR Premium Door Install Kit) and a decent plumb makes door installation easy. You can also use a spirit level but 6ft level is a serious investment when you only have a few doors to hang. With an installation kit you only need one side plane and the plumb bob won't lie!
π Tajima PZB-400G Plumb-Rite Elastomer-wrapped Plumb Bob with 14-Ounce Weight for Precise Alignment
4 Review
Plumb Bob Magnetic Automatically Stabilize
4 Review
π¨ Tajima 14 oz Plumb-Rite Magnetic Plumb Bob Setter with 400g Weight, 14.5 ft Auto Recoil Cord, and Quick-Stabilizing Bob - Model PZB-400GP
9 Review
π¨ STANLEY Plumb Bob, 16-Oz (47-974) - Brass Construction for Enhanced Durability
5 Review
TV bracket Kromax DIX-18 black
52 Review
β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review