Threshold Assemblies Offset Applications (7" Top Plate) These ramp assemblies consist of interlocking components, eliminating the need to weld joints. These assemblies can be configured to accommodate changes in floor conditions from 1/2" to 2 1/4". Pemko R.5OS_ Threshold Assembly Pemko R.5OSMR_ Threshold Assembly Pemko R.75OS_ Threshold Assembly Pemko R.75OSMR_ Threshold Assembly Pemko R1.25OS_ Threshold Assembly Pemko R1.25OSMR_ Threshold Assembly Pemko R1.5OS_ Threshold Assembly Pemko R1.5OSMR_ Threshold Assembly R1.75OS_ Pemko R1.75OSMR_ Threshold Assembly Pemko R1OS_ Threshold Assembly Pemko R1OSMR_ Threshold Assembly Pemko R2OS_ Threshold Assembly Pemko R2OSMR_ Threshold Assembly