Lumber grading evaluates wood’s appearance or strength, with grades indicating acceptable purposes or non-defective wood percentage. Hardwoods and softwoods are graded differently, with hardwoods classified by clear surface percentage and softwoods by structural integrity or appearance. Grading standards are set by organizations, and different grades are used for different projects. Softwood size is classified based […]
Leveling trenching and grading excavation are essential skills in construction. Special equipment and design techniques are used to ensure proper slope and elevation for erosion control and drainage. Proper grading is crucial for road and building lot construction to prevent flooding. Most of the building lots and roads are built on a carefully planned slope […]
Some schools discourage the use of red ink for grading due to concerns about its negative connotations and potential impact on student stress levels and self-esteem. Purple, green, or hot pink are suggested alternatives. However, some argue that stress is a natural part of the academic experience and that the real issue is the disrespect […]
