How to manage the view range and plan regions in Revit floor plans

Autodesk’s Revit 2026 documentation on floor plans explains that element visibility and display are determined by the view range and view depth. The view range rules in this guide are based on the Revit 2026 documentation, while the information on plan regions is based on the Revit 2024 documentation. When unexpected lines appear throughout a floor plan or in just one area, first check these rules and the element’s category behavior.

1. Understand the parts of the view range

The main view range in a floor plan is defined by three horizontal planes: top, cut plane, and bottom. The top and bottom planes define the range boundaries; the cut plane affects the height at which some elements are drawn as cut. So when an element looks unexpected, consider all three planes together rather than checking just one.

View depth is an additional plane beyond the main range. According to Autodesk, it is at the same level as the bottom plane by default; changing it can make elements below the bottom plane visible. The view’s underlay setting may also affect the display of elements outside the view range.

The measurements in the table are drawing rules described by Autodesk, not recommended elevations for a project. Do not treat them as project standards or setting recommendations.

2. Find out why an element appears cut or with projection lines

1. Check the element’s relationship to the cut plane. Elements cut by the plane are displayed using their category’s cut line weight. If the category has no cut line weight, the element may be drawn using its projection line weight.

2. Distinguish the area below the cut plane from the area above the bottom plane. Elements in this interval are not cut, so they are displayed using the category’s projection line. Furniture appearing in projection rather than with cut lines may be behaving as expected under this rule.

3. Check view depth for elements below the bottom plane. Elements within the depth are generally displayed using the <Beyond> line style, regardless of category. There is also an exception for floors, structural floors, stairs, and ramps: if they fall within the adjusted range described in Autodesk’s documentation, the category’s projection line may be used.

4. Check elements between the top and cut planes. The categories that can be displayed in a floor plan in this area are windows, casework, and generic models. They are drawn with projection lines, as if viewed from above. A lighting fixture at the same height may not appear in the floor plan because of these category rules.

When applying the short-wall rule, also account for the top constraint. Autodesk defines the 6-foot (approximately 2-meter) measurement relative to the top of the wall’s bounding box and the bottom plane of the main view range. For walls with the top constraint set to Unconnected, walls shorter than this threshold may be displayed in projection even if they intersect the cut plane. For walls with a connected top constraint, the cut plane’s position determines whether they are cut. Whether the family is defined as cuttable or non-cuttable can also affect how it is drawn.

3. Use a plan region for a specific area only

Instead of changing the cut plane for the entire plan, you can use a plan region when a local area needs to display differently. According to Autodesk’s Revit 2024 documentation, a plan region is a closed sketch that defines a cut plane at a different height from the rest of the floor plan. Plan regions cannot overlap, but their boundary edges can align.

1. Identify the problem area. Check whether doors, windows, or walls in an area at a different elevation are not appearing as expected.

2. Create a plan region around the area. This lets you use a different plane in a specific area without changing the main plan’s view range.

3. Check the view and output. Plan regions belong to a specific view. The documentation notes that they can be exported and printed when visible.

4. Review the settings after copying. When a plan region is copied to another view, it retains the range settings from the original view. So check the result in the new view separately.

Plan regions can help in floor plans with changes in elevation and when displaying added or placed elements above or below the cut plane. However, Autodesk states that these regions cannot be used to control the visibility of MEP elements.

4. Assess reflected ceiling plans and line display separately

Reflected ceiling plans also have a view range, but the view looks upward. View depth operates upward from the cut plane; elements outside the main range but within the depth may be displayed using the <Beyond> line style. So don’t assume that the plane arrangement used in a floor plan will produce the same result in a reflected ceiling plan.

To change the line weights of cut and projected elements, Autodesk points to the Object Styles tool; to edit the <Beyond> line style, it points to the Line Styles tool. First determine which visibility rule applies to the element. If the problem is caused by the position of the planes, changing the line style won’t address the root cause.

Common mistakes

• Assuming every element outside the main view range will automatically be visible; also check view depth and underlay settings.

• Assuming every short wall intersecting the cut plane will display the same way; distinguish between Unconnected and connected top constraints.

• Using a plan region to adjust MEP element visibility; Autodesk states that this use is not supported.

• Assuming a copied plan region has been adjusted for the new view; it may retain the range settings of the original view.

• Trying to fix an incorrect view range by changing the line style; first check the visibility rule and the element’s category behavior.