If it wuz me, and I could get under the steps you're gonna build, I
would install indoor/outdoor carpeting on each tread. Years ago,
indoor/outdoor carpet was typically green and looked like plastic grass,
but nowadays you can't tell it apart from any 100% Olefin carpet, such
as any of those sold at Home Depot.
Indoor/outdoor carpet is commonly used around swimming pools because
it's not slippery when wet. Also, it doesn't become brittle like some
plastics when it gets really cold.
1. screw down pieces of pinned naplock at both the front and back of
each stair tread:
Naplock is made of anodized aluminum, so it won't rust or discolour
Screw right through each wood stair tread at both front and back. Then
clamp your pieces of naplock down to the tread and drill up through
those same holes to make holes at those locations in the naplock. Now,
use stainless steel or brass screws to screw the naplock down. Space
your screws every 6 to 8 inches.
(Pinned naplock will come pre-punched with holes, but the guy at that
punching machine must be off the wagon because the holes are never
uniformly spaced. Sometimes there's a good 12 inches between holes,
other times only 4 inches. It's annoying.)
2. Buy one small piece of indoor/outdoor carpeting in a light and one in
a dark colour and alternate the carpet colour on each tread for safety.
Our eyes can't see colours when it's dark, but we can still distinguish
between light and dark materials in the dark. OK that with your
neighbors because they may think a light coloured carpet is a poor
choice of colours cuz it'll show more when it gets dirty. They might
prefer you use two different colours cuz they almost never go out after
Cut those pieces of carpet to fit between the risers and between the
strips of naplock.
3. Crimp the lip of the naplock down with a pair of channel lock pliers
all along the length of the naplock. Maybe use a steel plate or
something to protect the underside of the wood treads (if needed). When
I install carpet, I typically use a piece of 3/4 inch thick hardwood
flooring about 10 inches long and set the bottom edge of that hardwood
on the lip of the naplock, and then pound on the top edge down tight
onto the carpet with a rubber mallet. But, by using a pair of channel
lock pliers, you get the same job done without all the pounding (which
might be quite concerning to your neighbors.) If you crimp the naplock
down tight every 2 to 4 inches, that should be sufficient, but the more
you crimp that naplock down onto the carpet, the better it'll hold the
carpet in place.
Maybe use an easy-to-remove latex caulk along the carpet/riser joint to
keep the carpet from ravelling at it's edges. (alternatively, use
naplock there too and hammer the lip down as described above)
That's what I'd do if it wuz me.
I'm intentionally not gluing the carpeting down here because I believe
the naplock alone would be sufficient to hold small pieces of carpet
like that securely in place. But, I ain't never done dat, so if you
disagree, you can also use indoor/outdoor double sided carpet tape to
hold things in place:
Naplock is sold in 10 foot lengths for about a dollar per foot. It
comes in "silver", "gold" and "titanium" colours, with titanium being a
relatively new thing and costing about twice as much just cuz of the
novelty of it. You cut it to length with either a pair of tin snips or
a hack saw.
I'm nestork and I approved this message.