Engineering Reference
Dimensions, section properties, material strengths and fastener capacities for structural steel, the numbers you would otherwise go and find a table for. Every value comes from the same data the STL TOOL BOX calculators run on.
Steel Shapes
Dimensions and section properties for W-shapes, HP bearing piles, channels, angles and both square and round HSS: overall size, thickness, weight per foot, area, and the moments of inertia and section moduli. Every size gets a scaled cross-section drawing. Browse by series or go straight to a size.
Steel Grades
ASTM structural steel specifications: yield and tensile strength, which members each covers, what it is used for, and the notes worth knowing before you order it.
Structural Bolts
ASTM bolt grades with allowable tension and shear by diameter, head markings, and the rules that decide which grade a connection can actually use.
Quick Reference Sheets
Printable one-page PDFs for the numbers worth having on paper: sling tension by angle, wire rope capacities, bolt values. Built to live in a gang box or a hard hat rather than on a screen. Free, and nothing to sign up for.
Related tools
Every reference page links into the TOOL BOX app that uses its values. All of them are free and none of them need an account.
- Steel Shape Properties Table
search and compare W, HP, S, M, C, MC, L, WT, HSS and pipe sections
- Steel Weight Calculator
total the tonnage from shape, length and quantity
- Beam Shear, Moment and Deflection Diagram Calculator
reactions, shear, moment and deflection for a single span
- Bolt Tensile & Shear Capacity Calculator
allowable tension and shear by grade, diameter and bolt count
- Fillet Weld Strength Calculator
capacity of a fillet weld by leg size, length and electrode
- Pipe Section Properties Calculator
area, weight per foot and section properties from OD and wall
- ASTM Structural Steel Grades Reference
Fy, Fu and applicable members for each ASTM specification