I am a sealcoater who is largely residential with some commercial experience and I am still getting my feet wet with commercial work. My question is, how do larger contractors bid a larger parking lot with thousands of feet of cracks? I usually try to walk the lot and measure the majority of larger cracks, but especially if there are cars in the lot, and even with out them, its not feasible to do that after a certain point. Surely larger companies are not out measuring cracks in roadways and mall parking lots with a measuring wheel. I’ve heard of some companies charging by the pound for crackfill material, but most customers probably would want an estimate ahead of time, no?