Timber Engineering Calculator vs CSiSteel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timber Engineering Calculator
This app provides 55 calculators for various timber and civil engineering parameters, covering beam properties, stress calculations, column design, and connector loads. It supports both metric (SI) and imperial (USCS) units for comprehensive engineering analysis.
- 55 engineering calculators
- Timber and civil engineering parameters
- Beam properties calculations
- Stress and load analysis
- Column design tools
- Connector load calculations
- Metric and imperial units
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Timber Engineering Calculator — 55 calculators for timber and wood-works design. Available in Metric (SI) and Imperial (USCS) units. NEW — Wood Species Reference & Auto-Fill: • Built-in species library (NDS 2018): Douglas Fir-Larch, Southern Pine, Hem-Fir, Spruce-Pine-Fir — Select Structural, No.1, No.2 • View Fb, Ft, Fv, Fc⊥, Fc, E and G in SI (MPa) and USCS (psi) • One-tap auto-fill of design values into calculators — faster, fewer errors • Auto-fillable fields marked with a tree icon Save calculations to History, add notes, export PDF reports. Formula shown on top; Calculate activates when all inputs are entered. SECTION PROPERTIES • Area of Section • Moment of Inertia • Distance from Axis to Extremities • Radius of Gyration • Section Modulus BENDING & SHEAR • Maximum Fiber Stress • Maximum Fiber Stress using Section Modulus • Horizontal Shearing Stress • Horizontal Shearing Stress (notched beam) • Modified Total End Shear (Concentrated / Uniform Loads) TIMBER COLUMNS (species auto-fill) • Allowable Unit Stress — Single/Glued, Rectangular, Circular • Allowable Compressive Stress at an angle to grain • Allowable Stress — Rectangular (NDS) • Hankinson's Equation ADJUSTED DESIGN VALUES (species auto-fill) • Extreme-Fiber Bending, Tension, Shear • Compression perpendicular / parallel to grain • End grain in bearing • Modulus of Elasticity DESIGN FACTORS • Size Factor • Volume Factor (Southern Pine / Other Species) • Radial Stress from Bending Moment • Curvature Factor • Bearing Area Factor • Slenderness Ratio for Beams NAILS & SPIKES • Allowable Withdrawal Load • Total Allowable Lateral Load — Group I–IV Wood WOOD SCREWS • Allowable Withdrawal Load • Total Allowable Lateral Load — Group I–IV Wood CONNECTORS — ADJUSTED DESIGN VALUES • Bolts — Lateral Loading • Split-Ring & Shear-Plate — Parallel / Normal to Grain • Nails & Spikes — Withdrawal / Lateral • Wood Screws — Withdrawal / Lateral • Lag Screws — Withdrawal / Lateral • Metal Plate Connectors — Lateral • Drift Bolts & Pins — Withdrawal / Lateral • Spike Grids — Lateral • Stress and Deflection Factor (Ponding) Also available: Civil Engineering Pack — 12 modules (Beam, Structural, Concrete, Column, Hydraulics, Survey, Soil, Piling, Highways, Bridge, Converter) in SI and USCS.
CSiSteel
This app provides a comprehensive library of steel sections and their structural properties. It helps users find optimum sections for design, search for equivalents, and sort by various parameters. Ideal for engineers, suppliers, teachers, and students involved in steel design projects.
- Comprehensive steel section library
- Find equivalent steel sections
- Search and sort by section properties
- Supports ASD and LRFD methods
- Includes AISC, CISC, and Arcelormittal sections
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CSiSteel features a comprehensive library of steel sections and their structural properties. From site engineers and suppliers looking for alternative sections based on regional availability, or construction constraints, and structural engineers looking for optimum sections in structural designs to teachers and students for steel design projects. Application/Usage: • Search and select optimum steel sections for steel design procedures, including ASD and LRFD methods • View equivalent sections based on user selection criteria Target Users: • Site engineers, contractors, and steel suppliers looking for alternative sections based on regional availability, or construction constraints • Structural and civil engineers looking for optimum sections for structural modelling and analysis • Teachers and students searching for steel sections in steel design projects Key Features: • Comprehensive library of steel sections including AISC, CISC, and Arcelormittal • Get equivalent sections for user selected sections • Search and sort for sections based on many parameters, including section properties Key Input: • Steel library • Section type, dimensions, or properties • Steel section Key Output: • Steel section • Section dimensions • Section properties • Equivalent steel sections
Screenshots
Verdict
The clearest difference is review sentiment: CSiSteel at 100% against Timber Engineering Calculator's 0%. CSiSteel also leads on price (Free vs $3.99) and rating (5.0 vs 3.9). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
CSiSteel is free to download; Timber Engineering Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CSiSteel holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 7 and 7 respectively. Written reviews point the same way: 0% of Timber Engineering Calculator's written reviews are positive against 100% of CSiSteel's.
Timber Engineering Calculator ships an update every 39 months, CSiSteel every 3 weeks. The most recent releases landed on August 28, 2026 and July 5, 2026 respectively.
| Parameter | Timber Engineering Calculator | CSiSteel |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.9 (7 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 | 7 |
| Update frequency | Every 39 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Computers and Structures, Inc. |
Customer experience
Timber Engineering Calculator
CSiSteel
In-app purchases
Timber Engineering Calculator
No in-app purchases
CSiSteel
No in-app purchases
Questions
Is Timber Engineering Calculator free?
Is CSiSteel free?
Which has better reviews, Timber Engineering Calculator or CSiSteel?
Do Timber Engineering Calculator or CSiSteel have ads?
Which is updated more often, Timber Engineering Calculator or CSiSteel?
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