In general, this template should not be used for new articles with little or no content. Instead, the sandbox should be used to develop the article so that it has reasonable content when it is copied into mainspace.

Articles tagged with this template are automatically added to the category Category:Pages actively undergoing construction. Add the parameter |placedby= (followed by your user name; do not insert a full signature) to make it easy for people to contact the person who placed the template. If a page using this template has not been edited in 8 days, a bot will automatically remove the template.

If used on a non-article page (such as a user page) which is not yet ready for use, type {{Under construction|notready=true}}. That will produce the following:

This template page or section is in a state of significant expansion or restructuring, and is not yet ready for use. You are welcome to assist in its construction by editing it as well. If this template page has not been edited in several days, please remove this template. If you are the editor who added this template and you are actively editing, please be sure to replace this template with {{in use}} during the active editing session. Click on the link for template parameters to use. This template was last edited by Pppery (talk | contribs) 6 months ago. (Update timer)

A comment may be added to the box using the |comment= switch.

As this template is used in multiple namespaces it uses {{mbox}}, which will automatically detect individual namespace usage and adapt appropriate styling accordingly.

{{Under construction |placedby= |section= |nosection= |nocat= |notready= |comment= |category= |altimage= |notify= }}

• altimage – provide an alternate image for the template. Should be a complete file tag, e.g. [[File:Under_construction_icon-orange.svg|64px]]
• category – a custom category (must be prefixed with the "Category:" namespace identifier and enclosed in double square brackets) into which the page will be placed. If omitted, the page is placed by default in Category:Pages actively undergoing construction. However the page will not be placed into a category if the page is in the "User:" or "User talk:" namespaces.
• comment – free-form text. If present, the text "Contributor note:" is shown followed by the content of |comment=.
• nocat – set to true (e.g. |nocat=true) to prevent the page from being placed into the default Category:Pages actively undergoing construction or into a custom category. Set to anything but true or don't set it at all, and it will be included.
• notready – value is immaterial, but if present, and not blank, adds the text ", and is not yet ready for use" following the word "restructuring".
• nosection – value is immaterial, but if present, and not blank (e.g. |nosection=yes), removes the phrase "or section", i.e. makes the message apply to the entire page
• placedby – user name of the person placing the template. Do not use a full talk page signature.
• section – value is immaterial, but if present, and not blank (e.g. |section=yes), removes the phrase "article or", i.e. makes the message apply only to a section.
• subsection – value is immaterial, but if present, and not blank (e.g. |subsection=yes), removes the phrase "article or", i.e. makes the message apply only to a subsection.
• notify – yes, y or any value. Placing editor wants to be notified on their talk page if template is removed.

• {{In creation}} to use this template when multiple edits are being made to add content immediately after creating the article
• {{In use}}, for articles actively undergoing a major edit for a short while to list them in Category:Pages actively undergoing a major edit
• {{Under discussion}}, for a non main page undergoing active discussion on its talk page
• {{recently revised}}, if you are unsure about your revision/major changes and want a second opinion
• {{Deletion under review}}, to prevent deletion nomination until the review process is complete

• Wikipedia:Deletion of newly created pages, regarding preventing pages from getting deleted while they are brand new.