What grade marking would you expect to find on lumber suitable for structural applications?
Correct Answer
C) Select Structural
Select Structural is the highest grade of dimension lumber and is appropriate for structural applications where high strength and good appearance are required. Construction and Utility grades have lower strength values.
Why This Is the Correct Answer
Select Structural is the highest grade of dimension lumber and is specifically designed for structural applications where maximum strength and load-bearing capacity are critical. This grade has the highest allowable stress values and is required by building codes for primary structural members like beams, headers, and load-bearing posts. The lumber in this grade has minimal defects that could compromise structural integrity, making it the appropriate choice for critical structural components in construction projects.
Why the Other Options Are Wrong
Option B: Utility Grade
Economy Grade is the lowest grade of structural lumber with the most defects and lowest strength values, making it inappropriate for any structural application where load-bearing capacity is required
Option D: Construction Grade
Construction Grade is a lower grade than Select Structural with reduced allowable stress values, making it suitable for general framing but not optimal for critical structural applications requiring maximum strength
Memory Technique
Remember 'SELECT the STRUCTURAL grade for STRUCTURAL work' - the name literally tells you its purpose, and 'select' implies choosing the best option available
Reference Hint
Florida Building Code Chapter 23 - Wood, or AWC National Design Specification (NDS) for Wood Construction - Section 4.3 Lumber Grades and Allowable Stresses
More Project Mgmt Questions
What is the minimum R-value required for wall insulation in Florida Climate Zone 2?
A subcontractor brings a new chemical product to your jobsite. Under the Globally Harmonized System (GHS), what information must be immediately available to workers?
A construction site has a trench that is 8 feet deep in Type B soil. What is the maximum allowable slope ratio for the trench walls without protective systems?
What is the maximum recommended spacing between drywall screws when attaching to wood studs?
Your crew discovers suspected asbestos-containing materials during a renovation project. What is the first action you should take?
A scaffold platform is 12 feet long and 5 feet wide. If the maximum load capacity is 25 pounds per square foot, what is the total weight capacity of this platform?
Which CSI MasterFormat Division would contain specifications for fire-stopping and firesafing materials?
In tilt-up concrete construction, what is the primary advantage of this method over conventional cast-in-place construction?
Which OSHA standard specifically addresses construction industry safety and health regulations?
A structural drawing shows a beam labeled 'W12x26'. What does the '26' represent?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass