[Bekisting merupakan bagian yang menjadi unsur penting dalam suatuproyek konstruksi gedung bertingkat karena menghabiskan biaya terbesar dalampekerjaan struktur bertingkat yang tipikal. Metode Block Out merupakan inovasiyang dimiliki PT. PP yang menjadi pilihan dalam pekerjaan bekisting. Padapenelitian ini akan dianalisa bagaimanakah perbandingan antara Metode Block Outyang dimiliki PT. PP dengan Metode Bekisting Konvensional ditinjau dari segibiaya dan waktu pada pekerjaan kolom. Data yang akan dianalisis didapatkan darinarasumber yang menjadi praktisi di bidang konstruksi. Hasil dari penelitian iniadalah metode out lebih murah dibandingkan metode konvensional denganpenghematan Rp 567.721.928,19 atau Rp 113.544.385,64 / lantai sehingga efisiensibiaya yang dapat dilakukan sebesar 20,6%. Metode block out lebih cepatdibandingkan dengan metode konvensional dengan durasi 12 hari., Formwork is one part of high rise building construction that becomes animportant element of a project because it consumes the largest cost in a typicalmulti-storey structural job. Block Out is a method innovated by PT. PP that can beused as an option in doing formwork. This research will analyze the comparisonbetween Block Out Method and Conventional Formwork Method in cost and time’sprespective when working on column installation. The data that will be analyzedare obtained from sources who are practitioners in construction project. Thehypothesis of this study is that Block Out Method, compared to ConventionalFormwork Method, is cheaper in its construction cost and faster in its executiontime. The goal of this report is Block Out Method is cheaper than ConventionalMetode with thrift IDR 576.721.928,19 or IDR 113.544.385,64 / floor. So,efficiently cost that could to apply is 20,6%. And, Block Out Method is faster thanConventional Method that have 12 days duration]