How do I put a box around a paragraph?
I retagged your question, assuming your question is about paragraphs in Writer documents. If I assumed wrong, please add more detail to your question. Thanks.
Open the formatting styles pane, right click and create a new paragraph style. Then open the border tab and click the icon that has borders on all 4 sides.
Don’t click on ‘Edit paragraph style…’ as this will box all paragraphs of document but on ‘Paragraph’.