Title: MethodGrid Maler-Kostenrechner
Author: methodgrid
Published: <strong>October 11, 2026</strong>
Last modified: October 11, 2026

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# MethodGrid Maler-Kostenrechner

 By [methodgrid](https://profiles.wordpress.org/methodgrid/)

[Download](https://downloads.wordpress.org/plugin/methodgrid-maler-kostenrechner.1.0.0.zip)

 * [Details](https://wordpress.org/plugins/methodgrid-maler-kostenrechner/#description)
 * [Reviews](https://wordpress.org/plugins/methodgrid-maler-kostenrechner/#reviews)
 *  [Installation](https://wordpress.org/plugins/methodgrid-maler-kostenrechner/#installation)
 * [Development](https://wordpress.org/plugins/methodgrid-maler-kostenrechner/#developers)

 [Support](https://wordpress.org/support/plugin/methodgrid-maler-kostenrechner/)

## Description

MethodGrid Maler-Kostenrechner is a focused estimate calculator for German painting
businesses that want a simple alternative to a generic form or calculator builder.

Site operators enter their own rates, add a note explaining the price basis, choose
an accent color, configure a contact link, and place the calculator with the shortcode`[
malerpreis_rechner]`.

Visitors can enter wall and ceiling area, select the condition of the surfaces, 
add wallpaper removal and door painting, and receive a non-binding price range.

Key characteristics:

 * Preconfigured workflow for standard interior painting estimates.
 * The business enters its own pricing parameters; bundled numbers are demo values
   only.
 * Demo values are blocked from public display until the operator explicitly confirms
   the settings.
 * Optional room-dimension helper for estimating wall and ceiling area.
 * Configurable minimum order value, estimate range and rounding.
 * Configurable contact button and accent color.
 * Calculation runs locally in the visitor’s browser.
 * No lead form, tracking, cookies, external APIs, external fonts or visitor-data
   storage in version 1.0.0.

MethodGrid Maler-Kostenrechner is currently designed for German-language painting
businesses and uses EUR for estimates.

The result is an estimate, not a binding quotation. The site operator is responsible
for entering appropriate business-specific prices and wording.

### Privacy

Version 1.0.0 stores only administrator-configured plugin settings in the WordPress
options table. The plugin itself does not store personal visitor data, set cookies,
use local/session storage, or send external requests.

The contact button is a normal link configured by the site operator. When a visitor
follows that link, the privacy behavior of the destination page, email client or
phone application is outside this plugin’s control.

### Support

For support after publication, use the plugin’s WordPress.org support forum. Please
include your WordPress version, PHP version, active theme, and steps to reproduce
the issue.

## Screenshots

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## Installation

 1. Install and activate the plugin.
 2. Open **Settings > MethodGrid Maler-Kostenrechner**.
 3. Replace the demo values with your own business calculation.
 4. Add a price-basis note that accurately describes your estimate, for example whether
    material and VAT are included.
 5. Add a valid contact link and adjust the button label if needed.
 6. Choose an accent color that fits your website.
 7. Confirm the price release when saving.
 8. Add `[malerpreis_rechner]` to a page or post.

## FAQ

### Are the default prices market recommendations?

No. They are demo values only. The public calculator remains locked until the site
operator explicitly confirms the stored settings.

### Is the result a binding quotation?

No. The frontend labels the result as a non-binding estimate. The business can also
add its own price-basis note below the result.

### Does the plugin collect leads or personal visitor data?

No. Version 1.0.0 has no lead form and does not store personal visitor data. The
configured contact button only links to an existing contact page, email address 
or phone number.

### Does the plugin use cookies, tracking or external services?

No. The plugin code does not set cookies, use browser local/session storage, load
external fonts, send analytics, or call external APIs.

### Can I change the calculator colors?

Yes. You can choose one accent color in the settings. The plugin derives matching
hover, selection, button-text and focus colors automatically.

### Can I use several calculators on the same page?

Yes. Multiple shortcode instances are scoped independently.

### What happens if JavaScript is disabled?

The calculator does not calculate prices and displays a message explaining that 
JavaScript is required.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“MethodGrid Maler-Kostenrechner” is open source software. The following people have
contributed to this plugin.

Contributors

 *   [ methodgrid ](https://profiles.wordpress.org/methodgrid/)

[Translate “MethodGrid Maler-Kostenrechner” into your language.](https://translate.wordpress.org/projects/wp-plugins/methodgrid-maler-kostenrechner)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/methodgrid-maler-kostenrechner/),
check out the [SVN repository](https://plugins.svn.wordpress.org/methodgrid-maler-kostenrechner/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/methodgrid-maler-kostenrechner/)
by [RSS](https://plugins.trac.wordpress.org/log/methodgrid-maler-kostenrechner/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * First public release for the WordPress.org Plugin Directory.
 * Focused interior-painting estimate workflow with configurable business rates.
 * Price-release gate prevents demo values from being published accidentally.
 * Minimum-order, estimate-range and rounding controls.
 * Room-dimension helper, surface-condition options, wallpaper removal and door 
   painting.
 * Configurable contact CTA and accent color.
 * Local browser-side calculation with no tracking, external APIs, cookies or visitor-
   data storage.
 * Input validation, fail-closed configuration handling, scoped CSS, keyboard/focus
   improvements and multiple-shortcode support.

Older pre-release changes are documented in `changelog.txt`.

## Meta

 *  Version **1.0.0**
 *  Last updated **3 days ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.5 or higher **
 *  Tested up to **7.1.3**
 *  PHP version ** 8.1 or higher **
 * Tags
 * [contractor](https://wordpress.org/plugins/tags/contractor/)[Cost Calculator](https://wordpress.org/plugins/tags/cost-calculator/)
   [estimate](https://wordpress.org/plugins/tags/estimate/)[painting](https://wordpress.org/plugins/tags/painting/)
   [shortcode](https://wordpress.org/plugins/tags/shortcode/)
 *  [Advanced View](https://wordpress.org/plugins/methodgrid-maler-kostenrechner/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/methodgrid-maler-kostenrechner/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/methodgrid-maler-kostenrechner/reviews/)

## Contributors

 *   [ methodgrid ](https://profiles.wordpress.org/methodgrid/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/methodgrid-maler-kostenrechner/)