The 257 Series Barrier-Free Ramp Offset Threshold, measuring 6" in width, is purposefully designed for convenient access in areas with a 1/2" center offset and seamlessly pairs with the 259 Series to form a 12" wide ramp. Constructed from durable materials suitable for both interior and exterior use, it is recommended to enhance moisture protection with the PemKote non-slip coating. Notably, it achieves ADA compliance when utilized in conjunction with the 259 Series.
Features
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When used with Pemko 259, combination becomes barrier-free
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Use 257 and Pemko 259 together, or use 257 with an abutted 1:12 concrete slope
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When used as cover plate assembly longer spindle may be required
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Not ADA-compliant when used alone or at a door opening
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PemKote™ is highly recommended, especially in exterior conditions where moisture may be present
Benefits
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For both interior and exterior use
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Superior durability
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Optional PemKote enhances moisture protection
Specifications
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Base Material: Aluminum, Brass
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Fasteners: WS #10 x 1"
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Maximum Length: 185"
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Minimum Length: 24"
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Overall Height: 3/4"
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Weight: 0.88 lbs
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Width: 6"
Certifications
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UL 10C positive pressure
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UL 4L10 listed
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ANSI/BHMA A156.21 Thresholds