What is the Diamond symbol every 19'-2" increment?
The diamond symbol represents an alternative on-center spacing for framing ... Read more
Sometimes working alone, working with a level seems so clumsy. How can I free up a hand?
Each IRWIN Box Beam Level has patented keyed inserts which hold WoodTac"s. ... Read more
I am working during the rainy season, and my chalk lines wash away if I don't spray them with polyurethane. Is there any type of chalk that will withstand bad weather, and eliminate this step?
IRWIN makes permanent chalk in either black or red. Because it won't rub, f... Read more