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Structural & Civil

Beam formulas, concrete grades, load coefficients, and timber sizes.

Allowable Deflection Limits

Standard allowable deflection limits (L/240, L/360, etc.) for steel and concrete structural members according to IBC, AISC, and Eurocode standards.

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Standard Beam Formulas

Essential structural engineering beam formulas. Quickly find maximum bending moment, shear force, and deflection equations for various load cases.

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Minimum Bolt Spacing & Edge Distances

Design requirements for structural steel connections. Standard minimum and maximum bolt spacing, pitch, and edge distance guidelines.

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Concrete Strength Grades & Properties

Comprehensive chart of standard concrete grades, characteristic compressive strengths (cylinder vs cube), and typical mix ratios for construction.

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Dead Load Densities

Structural engineering reference for dead loads. Unit weight and density table (kg/m3 & lb/ft3) for masonry, timber, concrete, steel, and glass.

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Soil Friction Angles & Cohesion

Geotechnical engineering chart for internal friction angle (phi) and cohesion (c) values of various soil types including sand, clay, and gravel.

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Rebar Hook & Bend Allowances

Reinforcement detailing guide. Standard pin diameters, minimum bend radii, and extension lengths for 90-degree, 135-degree, and 180-degree rebar hooks.

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Soil Classification System (USCS)

Unified Soil Classification System (USCS) breakdown and estimated allowable bearing capacities for shallow foundation design.

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Ergonomic Stair Tread & Riser Proportions

Design guidelines for safe stairs. Standard riser heights, tread depths, and the universal stair formula (2R + T) for optimal ergonomics.

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Nominal vs Actual Timber Dimensions

Dimensional lumber chart converting nominal sizes (like 2x4, 4x4) to actual dry dimensions in inches and millimeters for structural framing.

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Welded Wire Mesh Sizes & Weights

Standard dimensions, wire spacings, cross-sectional areas, and unit weights per square meter for welded wire fabric (mesh) reinforcement.

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Wind & Snow Load Coefficients

Reference tables for wind pressure shape coefficients, exposure categories, and basic snow load factors based on roof pitch and geometry.

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