Round and half-round windows
Formfönster’s ARGON models provide a starting point for circular and half-moon openings. Our round-window page explains the constructions and shows published sizing examples.
A window needs the right proportions, opening type and finish. Amawood brings together Formfönster’s shaped windows and Let There Be Light’s windows and glazed systems in Lenhovda, Sweden.

Formfönster specialises in round and half-round windows in pine, oak and ash. Let There Be Light offers windows designed to complement its sliding systems, with slender sash profiles, different opening types and visible timber. The choice concerns how the window will be used as well as its geometry.
Let There Be Light offers windows with or without external aluminium cladding. Finishes include untreated timber, stain and lacquer, with colours across the NCS and RAL ranges. These options belong to LTBL’s offering and are not standard specifications for every Formfönster model.
About FormfönsterStart with the openings in the elevation, then select a product family. The brand’s documents provide further guidance for installation and maintenance.
For work on an older building, include photographs of existing profiles and glazing bars. A reference image describes the desired appearance; it does not itself establish a particular heritage profile or approval.
Number each opening and give its dimensions and preferred construction. Indicate any windows that should match sliding systems. This separates choices shared across the elevation from requirements that apply to an individual window.
Questions? info@amawood.se · +46 474 218 00
The official window page shows Fixed, French, Top turn and Sideswing. Select according to how the room will be used and confirm the construction for the intended size.
Yes. LTBL describes windows with or without external aluminium cladding. This is an option within LTBL’s range, not a specification shared by all group products.
LTBL describes its windows and sliding systems as a coordinated range. Include both in your drawings to discuss profiles, timber and finish together.
Let There Be Light publishes documents under Montering och skötsel on its website, linked below. Check that the instructions apply to the system in your order.