I'm not sure if anyone sells pre-cut cover strips as an on-going thing. I could be wrong. If you use an 18" metal ruler, they are not that hard to cut at all. Measure twice, then hold the ruler down tight and score along the edge with an x-acto blade. Use light pressure on the first score, then score again with a bit more pressure. Then, snap.. Boom! The metal ruler is the key to perfectly straight cover strips!