List of Common Construction Abbreviations
Job Order Contracting
JANUARY 13, 2017
OH: Overhead. OHD: Overhead Door. PCPL: Portland Cement Plaster. RR: Railroad. NTS: Not To Scale. O: Oxygen. O TO O: Out to Out. OA: Outside Air, Overall. OB: Obscure. OBS: Obscure. OC: On Center. OD: Outside Diameter. OF: Outside Face. OFF: Office. OHMS: Oval Head Machine Screw. OHWS: Oval Head Wood Screw.
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