# Slab Rebar Concrete Calculator — Mesh, Footing, Wire & Spacing

> Mesh, Footing, Wire & Spacing (iPhone/iPad app by ZHENGQIAO JIANG.)

- Source: https://appshunter.io/ios/app/slab-rebar-concrete-calculator/id6769216926 (this page in markdown: same URL + `.md`)
- Developer: [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean
- Released: 2026-05-18
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/slab-rebar-concrete-calculator/id6769216926/reviews.md

## What is Slab Rebar Concrete Calculator?

What does SlabKit do?
SlabKit calculates rebar grid takeoffs, structural rebar design, wire mesh sheet counts, concrete volume, and a full set of jobsite estimators — all offline on your iPhone. Built for residential concrete contractors, framers, masons, estimators, and DIY pours.

Is my data private?
100% offline. Nothing leaves your iPhone. No accounts, no analytics, no ads, no third-party tracking.

How do I get started?
1. Open a tab: Slab, Mesh, or Concrete
2. Enter your dimensions in imperial or metric
3. Read the takeoff and save the project or export a PDF

What can I do with it?
- Lay out a rebar grid on any rectangular slab and get bar count, total linear length, weight, and number of standard-length sticks required (including lap overlap), with independent length/width spacing
- Design structural rebar for columns, walls, and footings — bar size, spacing, and hook length from your load and dimensions
- Estimate sheets of welded wire fabric (WWF) or rolls with adjustable overlap
- Compute concrete volume for slabs, strip and pad footings, square columns, cylindrical tubes, walls, stairs, circular slabs, curbs, and post holes
- Design a stairs run with code-compliance checks — riser/tread limits, stringer length, landing angle
- Square up a layout with the 3-4-5 method, or plan a stepped-footing drop on sloped ground
- Estimate formwork lumber, excavation volume, gravel base, block wall units and mortar, and asphalt tonnage
- Count 40, 50, 60, and 80 lb (or 25 kg) bags of concrete mix, or ready-mix truckloads with short-load warnings
- Design a concrete mix to US (ACI), UK/EU (BS/EN), or Indian (IS) standards
- Save your local material and supplier prices in a reusable price library
- Track curing with optional Day 1/3/7/28 reminders, and log test cylinders against a lab schedule
- Add a waste factor and round up automatically
- Save unlimited projects with custom names
- Export a client quote or a formal Bill of Quantities (BOQ) as PDF for the jobsite or the supplier
- Switch between imperial (#3-#8 bar, ft/in, cubic yards, lb) and metric (8-32mm bar, m/mm, cubic meters, kg)

What standards does it cover?
Rebar sizes follow ASTM A615 (US) and BS 4449 / EN 10080 (metric). Concrete mix design follows ACI 211, BS 8500 / EN 206, and IS 456. Stairs follow IRC tread/riser limits. All estimates are for planning — always confirm with your structural engineer or local building official.

What languages does it support?
English, German, French, Korean, and Japanese.

How much does it cost?
3-day free trial, then $1.99/week, $4.99/month, $29.99/year, or $79.99 lifetime.

Terms of Use: https://taxlite.net/slab_kit/terms.html
Privacy Policy: https://taxlite.net/slab_kit/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $79.99 | one-time |



## Version history (last 3 releases)

### 1.2.0 — 2026-08-28

What's new in 1.2.0 — SlabKit now covers the whole job, not just the slab.

- Structural rebar design for columns, walls, and footings — bar size, spacing, and hook length calculated from your load and dimensions
- Stairs designer with code-compliance checks: riser/tread limits, stringer length, landing angle
- Square-up (3-4-5) and stepped-footing drop calculators for sloped sites
- Formwork, excavation, gravel base, block wall, and asphalt estimators
- Material price library — save your local supplier prices and reuse them across every project
- Concrete curing tracker with optional Day 1/3/7/28 reminders
- Mix design for US (ACI), UK/EU (BS/EN), and Indian (IS) standards
- Formal Bill of Quantities (BOQ) PDF export alongside the client quote layout
- Independent length/width rebar spacing — no longer locked to one on-center value

Still 100% offline. No accounts, no ads, no tracking.

### 1.1.0 — 2026-07-29

What's new in 1.1.0 — SlabKit now prices the job, not just the materials.

- Cost estimates: price your rebar, mesh and concrete, add custom line items (labor, delivery, pump), and see a running total
- Client-ready PDF quotes: add your company name, logo, and per-job client details
- 5 new concrete shapes: walls, stairs, circular slabs, curbs and post holes
- Ready-mix truckloads, with short-load warnings
- Nominal mix design: cement, sand and aggregate quantities
- Feet-inch-fraction calculator with a dedicated jobsite keyboard
- Rebar cut list added to the takeoff and PDF

Still 100% offline. No accounts, no ads, no tracking.

### 1.0 — 2026-05-18

No release notes.

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All apps by ZHENGQIAO JIANG: https://appshunter.io/developer/1892168889

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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 2026-09-06.*