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Pemko R_OSS_ Offset Modular Ramp Threshold Assembly (3-1/2" Top Plate)

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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".

  • Assemblies accommodate 1/2" to 2-1/4" floor offsets in meeting the 1:12 slope requirements of the Americans with Disabilities Act. Even higher offsets can be accommodated by using the risers, RAMP13_ and RAMP14_.
  • We highly recommends our specially designed miter returns. MR in a product number denotes that one-pair of miter returns (and one-pair of miter return extenders, if applicable) are included. Otherwise, we recommend filling and feathering the threshold ends with grout. Do not leave threshold ends open.
  • Miter Returns are available for offsets up to 2-1/4".
  • Assemblies are supplied with #10 stainless steel wood screws. Stainless steel machine screws and expansion shields are available at an extra cost.
  • Assemblies allow for custom fabrication (i.e. notching, side access extensions, etc.); please consult Customer Service.
  • Assemblies are provided NET length.

Part Number & Width

R.25OSS_
9-5/8"
R.5OSS_
12-3/4"
R.75OSS_
15-7/8"
R1OSS_
19"
R1.25OSS_
22-1/8"
R1.5OSS_
25-1/4"
R1.75OSS_
28.3/8"
R2OSS_
31-1/2"
R2.25OSS_
31-1/2"
R2.5OSS_
37-3/4"
R2.75OSS_
40-7/8"
R3OSS_
44"
R3.25OSS_
47-9/16"
R3.5OSS_
50-9/16"

Ratings

  • Barrier-Free
  • BHMA Certified
  • Fire Rated - UL10C - Positive Pressure

Finishes

  • R1OSSA: A - Mill Finish Aluminum Aluminum
  • R1OSSAK: K - PemKote Skid Resistant Surfacing Aluminum

Documentation