Architect Wood Palladian Shelf – Elegance Meets Structural Support Add a timeless architectural detail to your space with the Architect Wood Palladian Shelf – a premium wooden decorative shelf designed to complement arched windows, wide window frames, or transom-top styles. Crafted from premium North American hardwood, this custom wood Palladian shelf provides a secure, stylish platform that’s compatible with nearly every window treatment, from roller shades to Roman shades.