Paul from SWISCO responded:
July 26, 2010
For carpet, you will need the carpet riser. The holes in the carpet riser match the holes in the door guide, so you would use a long screw, like 1 1/4" to 1 1/2 long screws.
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Dave Sr. from SWISCO responded:
July 27, 2010
First, you will have to install carpet riser. First step will be to drill through the carpet and into the concrete. You will need to use a masonry drill-bit to go into the concrete. After the holes are drilled, you need to install an anchor into the concrete. With the anchor installed you must use a flat head #8 X 1-1/4" screw to fasten the riser. Then with the riser installed, install your door guide with two #8 X 1/2" pan head screw.
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