Wall-mounted shadow gap system
01-12 shadow profile with a 5 mm gap
An aluminium wall profile creating a narrow perimeter shadow line. A deep channel conceals the harpoon and the structural edge of the membrane.
- Shadow gap
- 5 mm
- Profile section
- 40 × 9 mm
- Standard length
- 2 m
- Model
- 01-12
Shadow profile catalogue
Wall-mounted shadow gap profiles
01‑12 — 01‑16
Ceiling-mounted shadow gap profiles
02‑9
Separating shadow gap profiles
03‑3
Shadow profile bars
08‑6 PRO
Short answer
What is the SofiMarsel 01-12 profile?
SofiMarsel 01-12 is a wall-mounted aluminium profile for stretch ceilings with a visible 5 mm shadow gap. The recessed harpoon seat conceals the membrane fixing, while the reinforced bumper edge helps align adjacent profile lengths.
Design logic
A clean perimeter junction
The profile geometry defines the gap, conceals the harpoon and helps maintain a straight line at joints.
5 mm shadow gap
A narrow shadow line separates the membrane from the wall and defines the room geometry.
Concealed harpoon
The deep channel conceals the harpoon and structural edge of the stretch membrane.
Neat joints
A reinforcing element on the bumper helps align adjacent profile lengths.
Verified product data
Technical specifications
Dimensions, material, compatibility and installation parameters for selecting and specifying the system.
- Application
- Shadow-gap stretch ceiling · wall mounting
- Shadow gap
- 5 mm
- Profile section
- 40 × 9 mm
- Standard length
- 2 m
- Mass
- ≈202 g/m
- Material
- Aluminium
- Finish
- Black moiré
- Harpoon
- SofiMarsel harpoon — white / black
- Fixing spacing
- 100–120 mm (10–12 cm)
- Model
- 01-12
CAD and dimension drawing
Use the dimensioned drawing for quick reference and the source DWG when coordinating the junction in a technical project.
DWGDownload DWG↓PNGOpen dimension drawing↗Application
How the profile creates a shadow junction
Align the profile around the perimeter and fix it to the wall at 10–12 cm intervals. Select fasteners for the substrate and site conditions. The harpoon seats inside the deep channel above the visible junction. Once the membrane is fitted, an even 5 mm shadow line remains between the wall and ceiling.
05 / Animation
Profile 01-12 in motion
The short official SofiMarsel video shows the profile geometry and the assembled ceiling junction.
Watch on YouTube360° reference
See the profile in an interactive scene
The Kuula view supplements the technical drawing with spatial context. Open it full-screen to inspect the presentation from every direction.
Open 360° viewClear answers
Questions about 01-12
What is 01-12 used for?
Wall-mounted stretch ceilings with a perimeter shadow line.
How wide is the finished shadow gap?
The nominal visible gap between the wall and membrane is 5 mm.
Is the harpoon visible?
The deep channel conceals the harpoon and the membrane’s structural edge.
What are the dimensions and mass?
The section is 40 × 9 mm, standard length 2 m and mass approximately 202 g/m.
What material and finish are available?
Aluminium with a black moiré finish.
Which harpoon is compatible?
SofiMarsel harpoon in white or black.
How is the profile fixed?
To the wall at recommended 10–12 cm intervals, using fasteners suitable for the substrate.
Where are the model and drawing?
This page includes an interactive 3D model, assembly detail, dimensioned drawing, DWG, video and interior panorama.