# inspectorColumnWidth(min:ideal:max:) Sets a flexible, preferred width for the inspector in a trailing-column presentation. ``` nonisolated func inspectorColumnWidth(min: CGFloat? = nil, ideal: CGFloat, max: CGFloat? = nil) -> some View ``` ## Parameters `min` The minimum allowed width for the trailing column inspector `ideal` The initial width of the inspector in the absence of state restoration. `ideal` influences the resulting width on macOS when a user double-clicks the divider on the leading edge of the inspector. clicks a divider to readjust `max` The maximum allowed width for the trailing column inspector ## Discussion Apply this modifier on the content of a [`inspector(isPresented:content:)`](/documentation/SwiftUI/View/inspector(isPresented:content:)) to specify a preferred flexible width for the column. Use [`inspectorColumnWidth(_:)`](/documentation/SwiftUI/View/inspectorColumnWidth(_:)) if you need to specify a fixed width. The following example shows an editor interface with an inspector, which when presented as a trailing-column, has a preferred width of 225 points, maximum of 400, and a minimum of 150 at which point it will collapse, if allowed. ``` MyEditorView() .inspector { TextTraitsInspectorView() .inspectorColumnWidth(min: 150, ideal: 225, max: 400) } ``` Only some platforms enable flexible inspector columns. If you specify a width that the current presentation environment doesn’t support, SwiftUI may use a different width for your column. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)