PT Designs Inc – Decorating Den Interiors, Decorating Den – #1 Award Winning Bethesda, Maryland Area Interior Designer and Interior Decorator. We are all about custom interior design and rooms that are all about you, and that includes our products. We have thousands of samples of top quality home furnishing products, from drapery, blinds, shades, furniture and bedding. We bring our design ideas and samples to the most convenient showroom in the world – your home. That way we can select the colors and textures right there in your space to guide our design and product decisions. Our selection of products includes Accessories, Custom Bedding, Custom Upholstered Furniture, and Custom Window Treatments.