Original: $5.52
-65%$5.52
$1.93The Story
LEGO® Technic Liftarm Modified Frame 7 x 11 with Open Center is a rigid structural frame designed for strong Technic assemblies and mechanical models. Identified by Part ID: 39794, this thick frame combines a large rectangular opening with multiple Technic pin holes, providing a stable foundation for advanced engineering projects and functional builds.
LEGO® Technic 7 × 11 Frame
The thick one-stud-wide construction helps reinforce larger assemblies while the open centre leaves space for gears, axles, motors and other internal mechanisms. Connection points along every side make the frame suitable for chassis construction, machinery, robotics and structural reinforcement where rigidity is important.
Building Uses
- Create rigid chassis and structural frames
- Support gear trains and internal mechanisms
- Build robots, machinery and large Technic models
- Combine with Technic beams, pins, axles and gears for complex assemblies
Browse more LEGO® Technic beams, LEGO® Technic parts, Technic pins and connectors, Technic axles and LEGO® Technic gears for compatible building elements.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
LEGO® Technic Liftarm Modified Frame 7 x 11 with Open Center is a rigid structural frame designed for strong Technic assemblies and mechanical models. Identified by Part ID: 39794, this thick frame combines a large rectangular opening with multiple Technic pin holes, providing a stable foundation for advanced engineering projects and functional builds.
LEGO® Technic 7 × 11 Frame
The thick one-stud-wide construction helps reinforce larger assemblies while the open centre leaves space for gears, axles, motors and other internal mechanisms. Connection points along every side make the frame suitable for chassis construction, machinery, robotics and structural reinforcement where rigidity is important.
Building Uses
- Create rigid chassis and structural frames
- Support gear trains and internal mechanisms
- Build robots, machinery and large Technic models
- Combine with Technic beams, pins, axles and gears for complex assemblies
Browse more LEGO® Technic beams, LEGO® Technic parts, Technic pins and connectors, Technic axles and LEGO® Technic gears for compatible building elements.






















