Architecture Puzzler #68

This material's proponents claim that it is harder than walnut and more stable than oak. Technically a grass, the product has come into use as a substitute for tongue-and-groove hardwood flooring. What material am I referring to?

When early American townships were being developed, it was common to offer lots of various lengths along street frontages. Depending on a person’s inclinations or financial strength they might purchase a lot of 1, 2, 3, or 4 rods wide. How wide is a 4-rod lot?