Stretcher Bar

Stretcher Bar

Definition

Stretcher Bars are wooden support frames used to stretch and secure loose canvas, providing a rigid structure suitable for painting and framing. They form the foundational support for all stretched canvas artworks and are critical in both studio and gallery settings.

Materials and Construction

• Typically made from kiln-dried softwoods such as pine or fir to reduce warping.
• Available in various cross-sectional profiles to accommodate different canvas thicknesses.
• Precision-cut corners, sometimes with interlocking keys, allow for tension adjustments and strong joints.

Uses

• Providing a taut surface for painting with oils, acrylics, or mixed media.
• Forming the structural base for gallery-ready stretched canvases.
• Serving as the substrate for mirror wraps and decorative canvas mounting techniques.

Related Techniques

• Mirror Wrap - canvas edges wrapped around the stretcher bar for a frameless appearance.
• Canvas Stretching - the process of pulling and stapling canvas to a stretcher bar.
• Stretched Canvas - the final result of a canvas secured to a stretcher bar.
• Strainer Bar - simpler support bars used in less permanent or smaller canvas applications.

Related Terms

• Mirror Wrap
• Canvas Stretching
• Stretched Canvas
• Strainer Bar