# Expansion Joint Spacing Calc — Thermal Expansion Joint Tool

> Thermal Expansion Joint Tool (iPhone/iPad app by Shanghai Sheyuan Network Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/expansion-joint-spacing-calc/id6761247626 (this page in markdown: same URL + `.md`)
- Developer: [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858)
- Category: Utilities, Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-03-29
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/expansion-joint-spacing-calc/id6761247626/reviews.md

## What is Expansion Joint Spacing Calc?

Expansion Joint Spacing Calc is a professional thermal expansion calculator for construction and engineering projects. Whether you are a structural engineer, contractor, or building designer, this app delivers accurate expansion and joint spacing calculations for a wide range of materials.

SUPPORTED MATERIALS:
- Concrete — slabs, pavements, sidewalks
- Steel — bridges, structural frames, railings
- Aluminum — facades, curtain walls, cladding
- Copper — roofing, flashing, piping
- PVC — piping, siding, gutters
- Brick — masonry walls, veneer panels

THERMAL EXPANSION CALCULATION:
Enter member length and temperature range. The app computes total thermal expansion using standard coefficients of linear expansion for each material. Results include recommended joint width and optimal joint spacing based on industry practice.

ACI & ENGINEERING GUIDELINES:
Calculations follow ACI 224.3R guidelines for concrete joints and standard engineering references for metals and polymers. Joint spacing recommendations account for material-specific movement capacity and typical sealant performance.

SAE & METRIC UNITS:
Switch between feet/inches and meters/millimeters with one tap. All inputs and outputs convert automatically.

TEMPERATURE RANGE ANALYSIS:
Enter high and low design temperatures for your project location. The app calculates the full delta-T range and shows how each degree of temperature change affects expansion.

BUILT FOR PROFESSIONALS:
- Standard coefficients of thermal expansion
- Joint width sizing with safety factors
- Clean, fast, offline — no internet required
- Dark interface optimized for field use

Save time on every project. Get accurate joint spacing in seconds.


## Version history (last 2 releases)

### 1.1 — 2026-06-28

Added a More Pro Tools section to discover related field calculators.

### 1.0 — 2026-03-30

No release notes.

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- [Orifice Jet Flow](https://appshunter.io/ios/app/orifice-jet-flow/id6760607248)
- [Concrete Block Wall Est](https://appshunter.io/ios/app/concrete-block-wall-est/id6760607814)

All apps by Shanghai Sheyuan Network Technology Co., Ltd.: https://appshunter.io/developer/1560626858

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*