Karkasa builds custom timber-frame houses and provides related residential construction services. Its work is organized around individual projects and varying completion stages, making the company relevant to buyers who already have a plot, drawings or a defined design direction.

The public offer is more construction-led than catalogue-based and does not clearly present a standardized closed-panel system. Buyers should request the structural and insulation specification, timber preparation, foundations, roof, windows, façade, utilities, interior scope, construction programme, payment schedule and warranty.