How Much Weight Can a 2×8 Hold?
A single #2 SPF 2×8 spanning 8 feet can support approximately 600–800 lbs uniformly distributed for permanent loads. Doubling the beam doubles the capacity. Always consult an engineer for structural applications.
A single #2 SPF 2×8 spanning 8 feet can support approximately 600–800 lbs uniformly distributed for permanent loads. Doubling the beam doubles the capacity. Always consult an engineer for structural applications.
Use this free lumber load capacity calculator to get instant, accurate results for your construction project. Simply enter your measurements above and the calculator will automatically compute the result using industry-standard formulas.
Pro Tip: Always add 10-15% extra material to account for waste, cuts, and job-site conditions. This is standard practice recommended by experienced contractors.