Steel Beam Span & Size Calculator
Estimate a suitable steel beam size based on span and load type. Enter your span below to get a recommended starting beam size.
⚠️ This tool provides estimates only. Always consult a structural engineer before final design.
Need another quick calculation?
Try these:
Free steel weight tools used by engineers, fabricators and estimators
Need full steel estimating?
Use the Excel Steel Weight & Cost Estimator to price full beam packages and structural steel jobs.
Instant download - Works in Excel - No subscription