
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!

๐ Tajima PQB-600 Plumb Bob - 21 oz (600g) with Quick-Stabilizing Cap & Embedded Bumpers: The Ultimate Tool for Precision Leveling
4 Review

๐จ AWF PRO Solid Brass Plumb Bob Kit - 16 oz and 8 oz, Magnetic Base, Retractable 14ft Line Reel, Pencils, Sharpener, Carrying Case
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๐ Tajima PZB-400G Plumb-Rite Elastomer-wrapped Plumb Bob with 14-Ounce Weight for Precise Alignment
4 Review

๐จ STANLEY Plumb Bob, 16-Oz (47-974) - Brass Construction for Enhanced Durability
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๐ฒ Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review

๐ Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review

TV bracket Kromax DIX-18 black
52 Review

Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review