Solidify Faces

Reference

Mode:

Edit Mode

Menu:

Face ‣ Solidify Faces

Extrudes the selected faces, turning them from an infinitely thin surface into a manifold mesh with volume.

The thickness can be changed in the Adjust Last Operation panel:

Thickness

Amount to offset the newly created surface. Positive values move inward relative to the face normals. Negative values move outward.

Mesh before solidifying.

Solidify with a positive thickness.

Solidify with a negative thickness.

See also

The Solidify Modifier does this non-destructively and has many more options.