# How to create a surface from line selection

**URL:** <https://discourse.shapr3d.com/t/how-to-create-a-surface-from-line-selection/19423>\
**Category:** Modeling Questions\
**Created:** [May 19, 2022, 4:59am UTC](https://discourse.shapr3d.com/t/how-to-create-a-surface-from-line-selection/19423 "2022-05-19T04:59:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![krisprolls](https://avatars.discourse-cdn.com/v4/letter/k/9de053/32.png) [@krisprolls](https://discourse.shapr3d.com/u/krisprolls)\
**Post date:** [May 19, 2022, 4:59am UTC](https://discourse.shapr3d.com/t/how-to-create-a-surface-from-line-selection/19423/1 "2022-05-19T04:59:10Z")

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I have split two body in diagonal and I would like now to seal the opened area by a face. More simply put, how can i create a surface to seal a shape by selecting surrounding lines?

thanks!

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**Author:** ![Wezza77](https://avatars.discourse-cdn.com/v4/letter/w/87869e/32.png) [@Wezza77](https://discourse.shapr3d.com/u/Wezza77)\
**Post date:** [May 19, 2022, 6:39am UTC](https://discourse.shapr3d.com/t/how-to-create-a-surface-from-line-selection/19423/2 "2022-05-19T06:39:54Z")

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Either create a flat plate and align it to the face you want and split body to trim, or extrude the face you want to close then offset faces to close that shape to a closing plate.

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**Author:** ![Istvan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/istvan/32/23668_2.png) [@Istvan](https://discourse.shapr3d.com/u/Istvan)\
**Post date:** [May 19, 2022, 10:33am UTC](https://discourse.shapr3d.com/t/how-to-create-a-surface-from-line-selection/19423/3 "2022-05-19T10:33:20Z")

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I may not fully understand the use case, but sounds like the Split Body tool combined with the Replace Face tool could do the job.