Interiors

• Archway

  An archway is a functional and aesthetic passage or entrance characterized by a curved structural header that spans the opening and supports the weight of the wall or ceiling above. Typically integrated into interior partitions or exterior facades, it serves to define transitions between spaces without the use of doors, promoting a sense of openness and architectural flow. Beyond its structural role in distributing vertical loads into horizontal and vertical forces, an archway acts as a decorative element that adds visual interest, grandeur, and character to a building's design.

• Baseboard

  A baseboard is a functional and decorative trim element installed along the bottom of interior walls where they meet the floor. Also known as a skirting board or mopboard, its primary purpose is to cover the joint between the wall surface and the flooring, effectively concealing uneven edges and gaps. Beyond its aesthetic role in providing a finished look and architectural transition, the baseboard acts as a protective barrier, shielding the lower portion of the wall from scuffs, moisture, and damage caused by foot traffic, furniture, or cleaning equipment. Typically made from wood, MDF, or vinyl, baseboards vary in height and profile to complement the specific architectural style and scale of a room.

• Bulkhead

  A bulkhead is an interior architectural element consisting of a lower portion of the ceiling that creates a boxed-in section or a horizontal downstand. It serves both functional and aesthetic purposes by concealing building services such as ductwork, plumbing, electrical wiring, and recessed lighting, while also helping to define specific zones within open-plan spaces. Commonly integrated into kitchen layouts to fill the gap between the top of cabinetry and the ceiling, bulkheads provide a finished, built-in appearance and can improve acoustics by absorbing sound or regulating airflow in rooms with high ceilings.

• Ceiling plane

  A ceiling plane is a horizontal or sloped overhead element that forms the upper enclosing surface of a room, serving as a primary visual boundary within an interior space. In architectural design, it acts as a key spatial plane that defines the height and volume of a room, often used to house lighting and mechanical systems or to provide acoustic and thermal control. Beyond its functional role, the ceiling plane can be manipulated through various forms—such as vaults, coffers, or trays—to influence the scale, mood, and architectural character of a building's interior.

• Chair rail

  A chair rail is a horizontal molding or trim element installed along interior walls, typically positioned one-third of the way up from the floor at a height of 30 to 36 inches. Originally designed during the 18th century to protect delicate plaster walls from damage caused by the backs of chairs, it now serves as a versatile decorative feature that adds architectural character and scale to a room. Beyond its functional role as a buffer against furniture and scuffs, the chair rail acts as a visual anchor that can define spatial zones, frame wainscoting, or provide a clean transition between different wall treatments, such as contrasting paint colors or wallpaper. Often crafted from wood, MDF, or moisture-resistant polyurethane, its profile can range from simple, modern lines to elaborate classical designs that complement a building's overall trim package.

• Coffered ceiling

  A coffered ceiling is an architectural feature characterized by a series of sunken, geometric panels—typically in the shape of squares, rectangles, or polygons—arranged in a grid-like pattern. Traditionally used in classical Greek and Roman architecture to reduce the weight of heavy stone or concrete ceilings, modern coffered ceilings are primarily decorative elements that add depth, dimension, and a sense of grandeur to interior spaces. Beyond their aesthetic appeal, these recessed panels can improve a room's acoustics by absorbing sound and diffusing echoes, and they are often used to conceal structural components like beams, pipes, or ductwork.

• Crown molding

  Crown molding is a decorative trim installed at the intersection where an interior wall meets the ceiling, designed to provide a graceful transition between these surfaces. Originally used for the practical purpose of covering gaps and imperfections where different building materials joined, it has evolved into a prominent aesthetic feature that adds elegance, character, and visual interest to a room. It is typically crafted from materials such as wood, plaster, or MDF, and can range from simple, minimalist profiles to highly intricate designs inspired by classical Greek and Roman architecture. Beyond its decorative appeal, crown molding can be used to draw the eye upward to create an illusion of greater height and more expansive space within an interior.

• Exposed beam

  Exposed beams are structural or decorative timbers or metal members left visible within a finished interior space, rather than being concealed behind a ceiling or drywall. Historically a necessity of timber-frame construction to support the weight of upper floors and roofs, they are now frequently used as a deliberate design choice to add architectural character, warmth, and a sense of "structural honesty" to a room. These elements can be authentic load-bearing components like joists, rafters, and trusses, or non-structural "faux" beams made of lightweight materials. Exposed beams suit a wide range of styles, from rustic farmhouse and industrial lofts to ultra-modern and Scandinavian interiors, often helping to define spaces in open-concept layouts while increasing perceived ceiling height and visual depth.

• Interior column

  An interior column is a vertical structural or decorative element located within a building to support loads from above, such as beams or ceilings, or to serve as an aesthetic feature. While often serving the functional purpose of transmitting compressive weight to the foundation in open-plan spaces, these columns also act as design tools to define activity zones, create visual symmetry, and add a sense of grandeur without the use of solid walls. They can range from classical styles like Doric or Ionic to modern minimalist forms and are commonly crafted from materials such as concrete, steel, wood, or plaster to enhance the architectural character of a room.

• Interior soffit

  An interior soffit is a section of a ceiling that is dropped or suspended below the main ceiling level to create a localized lower surface. Often used for both functional and aesthetic purposes, it typically serves to conceal unsightly building components such as HVAC ductwork, plumbing pipes, structural beams, or electrical wiring. Beyond its utility as a protective enclosure, an interior soffit is frequently employed as a design feature to define specific architectural zones, such as the area above kitchen cabinetry, or to provide a recessed housing for ambient lighting fixtures like LED strips or spotlights.

• Niche

  A niche is a specialized, recessed space or cavity integrated into the thickness of a wall or pier, designed to house decorative or functional objects such as statues, urns, or vases. Originating in classical architecture and extensively used in both interior and exterior surfaces, it serves to create visual interest and spatial depth by breaking up flat wall planes. These features often incorporate ornamental elements like arches, half-domes, or shell-like fluting at the apex to highlight the objects displayed within and communicate the building's architectural style.

• Partition wall

  A partition wall is a non-load-bearing interior wall designed to divide a larger space into separate rooms or functional zones without supporting the building's structural weight. Constructed from diverse materials such as gypsum board, glass, wood, metal, or masonry, these walls offer flexibility in floor plan organization and can be either permanent or temporary. Beyond spatial division, partition walls are essential for providing privacy, acoustic insulation, and fire separation, making them a fundamental element in optimizing the functionality and aesthetic appeal of both residential and commercial interiors.

• Picture rail

  A picture rail is a horizontal interior molding or trim installed along the upper part of a wall, typically six to eighteen inches below the ceiling, designed to facilitate the hanging of artwork without damaging the wall surface. Originating in the 15th century and popularized during the Georgian, Victorian, and Edwardian eras, it features a contoured profile or "lip" that supports specialized hooks and cords, allowing for the flexible lateral and vertical positioning of frames. Beyond its practical function of protecting plaster from nail holes, the picture rail serves as a decorative element that adds architectural character, defines room proportions, and can act as a visual border for contrasting paint or wallpaper. Traditionally crafted from wood or plaster, modern versions are also available in materials like metal and MDF to suit a variety of contemporary and period interior styles.

• Tray ceiling

  A tray ceiling, also known as a recessed or inverted ceiling, is an architectural feature characterized by a central section that is elevated above the surrounding perimeter, creating a layered effect that resembles an upside-down tray. This design element is primarily used to add height, depth, and a sense of luxury to a room, making spaces feel more open and airy without altering the actual footprint of the building. Often found in living rooms, bedrooms, and dining areas, tray ceilings can be customized with various shapes—such as rectangular, oval, or circular—and enhanced with decorative crown molding, contrasting paint colors, or integrated cove and recessed lighting to create a sophisticated focal point. In open-concept layouts, they also serve a functional purpose by visually defining different zones, such as a dining area, without the need for physical walls.

• Wainscoting

  Wainscoting is a decorative and functional form of wall paneling that is typically applied to the lower third or half of an interior wall, extending from the baseboard to a chair rail or cap molding. Originally developed in the 16th century to insulate rooms and protect plaster from moisture and physical damage, it is now primarily used to add architectural character, texture, and visual interest to spaces such as dining rooms, hallways, and entryways. Common styles include raised panel, flat panel, beadboard, and board-and-batten, and while traditionally crafted from solid oak, modern versions are often made from materials like MDF, PVC, or plywood to balance durability with ease of installation.

• Wall paneling

  Wall paneling is a decorative and functional interior wall treatment consisting of rigid or semi-rigid panels, traditionally made of wood but also available in materials like MDF, plastic, and metal. Originally developed in antiquity to insulate stone buildings and protect walls from dampness, it has evolved into a versatile design element used to add texture, depth, and architectural character to a space. Common styles include wainscoting, beadboard, shiplap, and raised or flat panels, which can be used to hide wall imperfections, improve acoustic performance, and provide increased durability in high-traffic areas.