Up your boot cleaning game by building a boot cleaner with brushes.
Here’s a traditional Swedish farm accessory for gunk-laden soles. The dimensions are not critical, but be sure the edges of the slats are fairly sharp — they’re what makes the boot scraper work. Cut slats to length, then cut triangular openings on the side of a pair of 2x2s. A radial arm saw works well for this, but a table saw or band saw will also make the cut. Trim the 2x2s to length, pre-drill, and use galvanized screws to attach the slats from underneath. Up your boot cleaning game by building a boot cleaner with brushes.