![](https://www.madero.ca/content/product-beauty-image/KNCrowder_Beauty2_puctXnz-variants/product_full/KNCrowder_Beauty2_puctXnz.jpg)
![](https://www.madero.ca/content/product-beauty-image/Thresholds_Beauty1_45O5QHw-variants/product_full/Thresholds_Beauty1_45O5QHw.jpg)
1/4" Rise
CT-Series Extruded Aluminum Thresholds with 1/4" Rise
CT-64, 65, 66, 67, 68
All thresholds are supplied punched with No. 10 x 1-1/2" flat head self-drilling tap-con screws at no additional costs.
This top of the line product is available in almost any shape, dimension, colour, and pattern; special requests can be made available by contacting Penner.
K.N. Crowder is dedicated to supply products that meet or exceed requirements by Architects and Contract Hardware Consultants.
- Designs
- Specifications
- Downloads
![](https://www.madero.ca/content/variant-hero-image/1-4in-Rise_600x600-variants/madero_thumb_square/1-4in-Rise_600x600.jpg)
1/4" Rise
![](https://www.madero.ca/content/variant-hero-image/1-4in-Rise_600x600-variants/madero_full_square/1-4in-Rise_600x600.jpg)
1/4" Rise
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Fire rated
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Extruded aluminum sill, 1/4" height
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Widths from 4" to 8"
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Maximum lengths from 12' to 13'
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Wheelchair accessible