Click Manage tab › Settings panel › Additional Settings › Line Styles, click New and name the style. Set its Line Weight, Line Color and Line Pattern, then click OK. Pick the style from the Line Style list when you draw detail or model lines.
Or, just ask Mira, a free add-in, to find and merge duplicate line styles.
How to do it in Revit
Step 1: Open Line Styles
Click Manage tab › Settings panel › Additional Settings › Line Styles (Autodesk Help: Create a Line Style).
Step 2: Create the style
Under Modify Subcategories, click New and enter a name. Name it the way your template names its other styles, so it sorts with them. It appears under Lines in the list.
Step 3: Set its weight, color and pattern
Click the style's Line Weight cell and pick a pen number, then set Line Color and Line Pattern. Click OK. The style is saved in this project only.
Step 4: Make a new line pattern if you need one
Click Manage tab › Settings panel › Additional Settings › Line Patterns, click New and name it. Build it in rows of Dash, Dot and Space, with a space after every dash or dot. Lengths are printed lengths, so the pattern looks the same at every scale (Autodesk Help: Create a Line Pattern).
Step 5: Draw with it
Start a detail line (Annotate tab › Detail panel › Detail Line, or DL) or a model line (Architecture tab › Model panel › Model Line, or LI), then pick the style from the Line Style list on the Modify | Place Lines tab. Detail lines are what most details are drawn with.
Step 6: Change existing lines to it
Select the lines and pick the style from the Line Style list on the ribbon, or change Line Style in the Properties palette. To restyle an edge of a wall or other model element in one view, use Modify tab › View panel › Linework (LW) instead.
Step 7: Copy it to other projects
Open both projects, then in the one that needs the style click Manage tab › Settings panel › Transfer Project Standards and copy from the other. If a name already exists, Overwrite replaces it and New Only skips it. Better still, add the style to your template.
What to watch for
Angle-bracket styles are Revit's own. Styles such as <Hidden> and <Beyond> can't be renamed or deleted. You can still change their weight, color and pattern, and the change reaches everything that uses them.
The weight is a pen number. A style picks one of 16 pens. The printed width comes from Manage tab › Settings panel › Additional Settings › Line Weights, where model pens change with view scale. See how to set line weights.
Families can't make line styles. You create line styles in a project only. In the Family Editor you change weight, color and pattern through Object Styles.
Move the lines before you delete a style. Autodesk doesn't document what happens to lines still drawn in a style you delete. Change them to another style first, then delete it in the Line Styles dialog. Clearing out unused styles at project closeout is covered in how to purge unused.
Thin Lines hides the difference. With Thin Lines on (View tab › Graphics panel, or TL), every line looks the same weight on screen. Turn it off to check a new style.
Copied details bring their own line styles. Every construction detail pulled from an old project or a consultant's file brings styles with names that almost match yours: "Medium Lines (1)", "MEDIUM-2", "Thin Lines 2". Some print exactly like yours and some don't, and the name won't tell you which. Keeping one set in the template your firm standards start from, and merging the copies as they arrive, keeps details matching.
Or, just ask Mira to do it.
Mira is an AI thinking partner for Revit that automates the work you repeat and builds tools your team needs.
- Type this in Mira
Identify and purge duplicate line styles from this model.
Mira compares every line style's weight, color and pattern rather than its name, lists the exact duplicates and asks before changing anything. It moves their lines onto the original, then deletes the copies in one undoable step. Styles that only look alike stay.
How do I create a new line style in Revit?
How do I edit line styles in Revit?
How do I make a new line type in Revit?
Can I delete or rename default line styles like <Hidden> in Revit?
How do I copy line styles from one Revit project to another?
Related Revit how-tos
- How to Add Keynotes in RevitIn Keynoting Settings (Annotate tab › Tag panel › Keynote drop-down), load your keynote file. Then pick Element, Material or User Keynote from that drop-down, choose a style in the Type Selector and click the element. A Keynote Legend on the sheet explains the numbers. Or, just ask Mira to fill in the Keynote on the wall types you've selected.
- How to Center Room Tags in RevitIn Revit 2025.3 and later, select the rooms and click Re-center Reference, then select their tags and click Move to Room Reference. The first moves each room's reference lines to its center; the second snaps the tags there. Earlier releases have neither command. Or, just tell Mira to center a whole view or level.
- How to Convert CAD Details to RevitMake a drafting view, import the DWG into it with Current View Only checked, then trace over it with detail components and your firm's line styles. Exploding the import is faster, but the CAD file's layers, text and hatches come with it, so clean those up and delete the import when you're done. Or, just ask Mira, a free add-in, to turn the CAD detail into a Revit detail.
- How to Create a Detail in RevitDraw a callout on a plan, section or elevation for a detail tied to the model, or start a drafting view for a 2D detail that isn't. Then add detail components, detail lines, filled regions and annotation from the Annotate tab. Or, just ask Mira, a free add-in, to draw a roof parapet detail in a new drafting view from your Pirros library's components.
- How to Add Dimensions in RevitClick Annotate tab › Dimension panel › Aligned (DI) and set Prefer to wall faces or centerlines. Click each wall in turn, then click an empty spot to place the string. Entire Walls dimensions a wall and its openings in one click. Or, just ask Mira, a free add-in, to add overall dimensions to a plan's exterior walls.
- How to Add Revisions in RevitClick View tab › Sheet Composition panel › Sheet Issues/Revisions, click Add and enter the date and description. Draw a cloud with Annotate tab › Detail panel › Revision Cloud, set its Revision in Properties and tag it. The sheet then lists it. Or, just ask Mira, a free add-in, to add a revision to a range of sheets.
Try it yourself.
Or bring it to the firm.
The download is free and takes a minute. The firm conversation is where your standards, your library, and your rollout get built. Start wherever makes sense.