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Offices & Rooms

Design & Construction Options

Our modular buildings are designed to create highly functional space anywhere inside your facility. The pre-engineered components that we provide to construct our modular buildings are designed to be easy to install so your down time in the area of construction is dramatically reduced when compared to conventional construction. The result is a high quality, durable building that will provide years of trouble free service.

Exploded view illustration of a modern, modular office structure showing individual layers of the roof, framework, and paneling in gray and beige.
Exploded view of a Versa-King duct assembly, showing a rectangular main duct section with an attached smaller side section and an additional separate panel.

Versa-King 3″

Our most popular wall system. Versa-King systems can accommodate virtually any interior building application. Porta-King uses all extruded aluminum for the vertical post connection and other framing components used in the construction of our 3″ Versa-King modular system. Aluminum is a maintenance free material. Unlike steel post systems it will not rust when exposed to moisture. The extruding process enables tighter control of the tolerances of the various shapes used to create our modular systems. As a result you get a better fit and finish that is possible with a steel post system. The Versa-King post design provides an easy access wiring chase every four feet. Snap-on cover plates allow quick and easy wiring during and after set-up. Versa-King is load bearing making it perfect for two story and / or storage loading applications.

Framing Color Choices: Clear Satin Anodized, White & Beige

Illustration of a wall section with detailed layers showing insulation, structural elements, and 1 3/4 inch Versa-King hardware. Ideal for architectural and construction concepts.

Versa-King 1 3/4″

This thinner version of our popular 3″ Versa-King is ideal for those on a budget. This system includes many of the same great features found in 3″ Versa-King but at considerabe cost savings. Porta-King uses all extruded aluminum for the vertical post connection and other framing components used in the construction of our Versa-King 1 3/4″ modular system. Aluminum is a maintenance free material. Unlike steel post systems it will not rust when exposed to moisture. The extruding process enables tighter control of the tolerances of the various shapes used to create our modular systems. As a result you get a better fit and finish that is possible with a steel post system. All components easily dismantle for relocation or increasing/decreasing size of structure -all parts are 100% reusable

Framing Color Choices: Clear Satin Anodized

Illustration of a three-dimensional folder icon with a magnifying glass focusing on the inner details of the folder's layered construction, emphasizing depth and organization.

Steel on Drywall

This panel includes a finished surface of smooth painted steel laminated to a layer of drywall and includes a UL Class 1 EPS foam insulating core. Like our painted steel on hardboard panel design, the multi-layer lamination design of this panel makes it another very durable panel surface. resistant surface. Additionally the drywall provides a 15 minute thermal barrier required by some building codes. This is another panel surface that is ideal for harsh plant environments. 3″ thick panel thickness has a thermal insulating value of R 10.
Color Choices: Gray, White, Beige

An illustration of a beige folder with documents, featuring a magnifying glass highlighting the details of the FRP files.

FRP on Drywall

A finished surface of Glass fiber reinforced plastic (FRP) laminated to 1/2″ drywall with a UL Class 1 EPS foam insulating core. Highly durable and impact resistant panel. Corrosion resistant and an economical alternative to steel. Ideal for harsh plant environments Standard FRP panels surface is Class C fire rated. Class A fire rated FRP is also available. 3″ thick panel thickness has a thermal insulating value of R 10.
Color Choices: Gray, White, Almond

Illustration of a layered white rectangular vinyl drywall object connected by a hinge at the corner, with a magnifying glass focusing on its layered structure.

Vinyl Covered Drywall

This panel option includes a 1/2″ thick, prefinished vinyl faced drywall laminated to a UL Class 1 EPS foam insulating core. The surface is easy to clean and provides excellent sound reducing qualities. This panel is Class 1 fire rated when tested in accordance to ASTM E-84. 3″ thick panel thickness has a thermal insulating value of R 10.
Color Choices: Gray, White, Beige, Blue, Black

Illustration of a detailed cross-section of a wall structure magnified to show layers, including exterior cladding, insulation, and interior plaster with vinyl covered hardboard.

Vinyl Covered Hardboard

Our most economical panel finish. 1/8″ thick, prefinished vinyl faced hardboard surface laminated to a UL Class 1 EPS foam insulating core. 3″ thick panel thickness has a thermal insulation value of R 13. This panel is light weight yet very durable and impact resistant. The vinyl covered hardboard used to create this panel surface has a Class C fire rating. Porta-King recomends consulting with your local building code official to confirm specific code requirements for your facility.
Color Choices: Gray, White, Beige, Blue, Black

Illustration of a hinged door partially open, with a close-up view showing the PVC fittings detail connecting the door to the frame.

PVC

PVC creates a highly reflective surface that is scratch and chemical resistant. Can be laminated to a solid UL Class 1 EPS or polyisocyanurate core.
Color Choices: White

Illustration of a minimalist open door with a detailed close-up showing the door's hinge and slight gap between the door and frame, rendered in shades of gray and featuring an aluminum coating.

Painted Aluminum

Painted aluminum is a light weight, non-shedding, and corrosion resistant material. It can be laminated to a solid UL Class 1 EPS or polyisocyanurate core.
Color Choices: White

Illustration of an abstract geometric design featuring a light gray painted steel square and a darker gray rectangle connected by a circle at the top left corner.

Painted Steel

Painted steel wall composition is an economically priced, super durable finish, available in a variety of colors. It can be laminated to a solid UL Class 1 EPS or polyisocyanurate core.
Color Choices: White, Gray, Beige

Illustration of a beige FRP folder with a magnifying glass focusing on its tab, showing detailed layers of the folder material.

Smooth FRP

This heavy duty, easy to clean material is also chemical and moisture resistant. Can be laminated to a solid UL Class 1 EPS or polyisocyanurate core.
Color Choices: Gray, White, Almond

Roof Option

Roof Support Angle

Roof support angle is provided to support non-load bearing ceiling systems for structures that will utilize 1 or 2 existing walls to create the four wall enclosure. Our standard roof support angle consists of a thick extruded anodized aluminum angle that is permanently attached to the existing structure to create a secure and level surface for a metal deck or panelized ceiling system.

Roof Option

Panelized Ceiling System

Panelized ceilings are ideal for applications where a tight seal is required. These light weight panels are installed via a tongue and groove side connection. These panels are insulated with an EPS core and are available in 3″-6″ thicknesses to accommodate different span conditions. They include a white painted steel interior and exterior surface.

Roof Option

Load Bearing Ceiling System

Load bearing roofs can be designed by adding structural steel I-beams that are mounted at pre-determined centers to create the required design load. Some heavier load designs, expecially those with large clean span requirements may require additional support via columns either in the wall panels or inside the enclosure. In some cases we will recommend the use of a mezzanine in order to create the appropriate load bearing design.

Roof Option

Acoustical Ceiling System

Our standard acoustical ceiling system consists of a 2’x4′ acoustical tile. The tile is a 5/8″ mineral board with a non directional fissured pattern. The main runners and cross tees are an intermediate grade, white painted galvanized steel. Many other ceiling tiles and grid types are available as options to address specific application requirements.

Roof Option

Metal Decking

Our metal decking is a 1 1/2″ corrugated, painted B deck. We use 22 gauge or 18 gauge decking depending on the span and load design requirements.

Roof Option

Standard Non-Load Bearing Ceiling System

Our standard ceiling system consist of a corrugated metal deck that is anchored to the top of the wall panels. An acoustical ceiling system is then suspended via tie wires to create the finished interior. The gauge of the decking is designed to support the grid work acoustical tiles and lights. For larger spans a structural I-beam will be added to provide additional support.

An office doorway, designed as a single man door of heavy duty aluminum, reveals a glimpse into a small room with gray walls, equipped with a chair, desk, computer, and a wall-mounted air

HDD – Heavy Duty Aluminum – Single Man Door

Heavy-duty tubular framework is mechanically fastened together to create a very durable, light weight, door leaf. The door frame is aluminum to match wall framing and installs flush with wall panels. Connecting posts are located on both sides which lock into the door frame for greater strength and resistance to racking. HDD doors include a 30 1/2″ wide by 40 1/2″ high vision lite. The lower half of the door leaf includes an insert that matches the specified modular wall construction. These doors come standard with an adjustable door sweep and a full perimeter bulb gasket seal. Standard door leaf is 3068 but other door sizes are available.

Finish: Clear Satin Anodized with a lower panel insert that matches interior and exterior of wall surfaces.

A set of double doors with glass panes, crafted from heavy-duty aluminum, is set in a wall with a light gray color. A dim reflection of a person is visible in each glass pane.

HDD – Heavy Duty Aluminum Double Door

Heavy-duty tubular framework is mechanically fastened together to create a very durable, light weight, door leaf. The door frame is aluminum to match wall framing and installs flush with wall panels. Connecting posts are located on both sides which lock into the door frame for greater strength and resistance to racking. HDD doors include a 30 1/2″ wide by 40 1/2″ high vision lite in each leaf. The lower half of the door leaf includes an insert that matches the specified modular wall construction. Standard door leaf is 3068 to create a 6068 double door but other sizes are available. These doors come standard with an adjustable door sweep and a full perimeter bulb gasket seal.

Finish: Clear Satin Anodized with a lower panel insert that matches interior and exterior of wall surfaces.

A modern white steel door with a rectangular glass window set in a clean, white wall in a well-lit interior space. The floor is light gray.

Steel – Single Man Door

Heavy-duty construction includes 24 gauge galvanized steel skin with solid insulating core. The door frame is aluminum to match wall framing and installs flush with wall panels. Connecting posts are located on both sides which lock into the door frame for greater strength and resistance to racking. Standard steel doors are solid but can include optional vision lites. Standard door leaf is 3068 but other sizes are available.

Finish: Painted a single color to match or compliment wall color

A well-lit industrial workspace with a large blue partition wall featuring windows and yellow safety guards. There are steel double doors in the center, leading to another section of the facility.

Steel – Double Door

Heavy-duty construction includes 24 gauge galvanized steel skin with solid insulating core. The door frame is aluminum to match wall framing and installs flush with wall panels. Connecting posts are located on both sides which lock into the door frame for greater strength and resistance to racking. Standard steel doors are solid but can include optional vision lites. Standard door leaf is 3068 to create a 6068 double door. Other sizes are available. These doors come standard with an adjustable door sweep and a full perimeter bulb gasket seal. Doors can be outfitted with closers and other options like the pull handles shown in this photo.

Finish: Painted a single color to match or compliment wall color

Office room with a closed steel double door and two small windows. There is a computer desk with a monitor in the foreground. A bright environment with neutral colors.

Steel – Double Door with Operable and Removable Transom

Single man doors and double doors can be supplied with operable and removable transoms to allow an entire section of wall to be opened for movement of materials in and out of the modular structure. This particular door is 8′ wide x 7′ high. The operable transom is 8′ wide x 4′ high. When both doors are open and the horizontal astragal removed to create an 8′ wide x 12′ high opening. The door includes bolts for the top and bottom to secure the appropriate door leafs when not in use.

Finish: Painted a single color to match or compliment wall color

Gray and blue modular wall panels with glass sliding doors in an industrial setting, featuring overhead lighting.

Sliding Doors

This sliding door consists of two panels suspended from a heavy duty top track. The panels are moved manually to create a large opening for equipment to pass through. The panels are constructed of the same material as the wall panels but could be comprised of other materials depending on the individual application requirments. The doors are also available in single panel configurations and can be provided in a range of sizes.

A view into an industrial warehouse through a large yellow roll up door, showing machinery and equipment scattered across the interior.

Roll Up Doors

Roll up doors are a popular option and can be easily incorporated into our modular buildings. A typical application will include a structural steel tube framework to ensure the door is secured into the wall system to provide years of trouble free service. Roll up doors are available in a wide range of designs and can be operated manually or by electric power.

A large custom industrial sliding door with a blue metal frame and multiple glass panels, mounted in a light-colored wall inside a spacious room.

Custom Doors

We can also design a custom door for specific application requirements. This door is motorized and slides horizontally to create a large opening that enables material to be moved in and out of the building. The horizontal brace was included to prevent the door from racking while in operation.

Automated sliding glass doors in an office building, showing a glimpse of a brightly lit storage room with shelves and a traffic cone inside.

Automated Sliding Doors

Automated sliding doors can be easily incorporated into the design of our modular systems. Structural steel tube frames are custom designed to create a rigid support system to support the automated door. The vertical panel connectors adjacent to the door serve as wiring chases to conceal electrical service to the door and related hardware.

A clean and modern hallway with white walls and intermittent fixed windows offering a view into softly lit, opaque interior spaces.

Fixed Window

Heavy-duty extruded aluminum framework with unique design features that enable a positive lock into vertical connecting post. Easy to remove stops enable on-site replacement of glazing should damage occur. The design of our frames accommodate glazing thickness of 1/8″-5/8″. Standard glazing is tempered safety glass. Other custom glazing options are available.

A simple interior image showing a small, closed window with white frames in a plain light gray wall, viewed from the side, illustrating the concept of a sliding window algorithm.

Sliding Window

Heavy-duty extruded aluminum framework with unique design features that enable a positive lock into vertical connecting post Durable cam-locks are standard to enable locking from one side. Standard glazing is tempered safety glass. Other custom glazing options are available.

An image of a clean, modern interior featuring a glass-walled office with transparent glass panels and aluminum frames, set against the backdrop of a gray carpeted floor and industrial walls.

Full Glass

Over-height glazing can be added to provide better visibility or simply as an architectural feature. Standard glazing is tempered safety. Other custom glazing options are available.

Interior of an office with partition walls featuring top of panel glazing, fluorescent ceiling lights, a dark carpeted floor, and a visible entrance door in the distance.

Top of Panel Glazing

Windows can be placed at the top of the wall panel to allow light to pass through while maintaining privacy inside.

A corridor with numbered doors on the right side, featuring wooden walls and top panel glazing in a well-lit indoor space.

Top of Panel with Opaque Glazing

Windows can be placed at the top of the wall panel to allow light to pass through while maintaining privacy inside. Opaque glass can be added to further increase privacy or as an architectural feature.

Window Option

Double Paned Window

Double paned windows consist of a heavy-duty extruded aluminum frame and are intended to create a flush surface on both sides for clean rooms or other applications that require elimination of horizontal surfaces where dust can collect. Glazing is tempered safety glass.

Close-up of a standard electric junction box installed on a conduit pipe against a beige wall.

Standard Electric

Standard electric consists of the electrical device (light switch, outlets or data jacks) shipped loose for installation on-site. Handy boxes are supplied along with coverplates. The devices can be easily installed into the standard post connection which doubles as a raceway. A full height, snap-on coverplate is included to conceal wiring and to enable easy access for future modification or maintenance. All electrical devices bear the UL label. Conduit and wiring is not included with standard electric.

A set of modular linear actuator components including a metal control box, two rails, cables, and mounting brackets displayed on a white background.

Modular Electric Kits

Simplify the installation by utilizing our optional modular electric devices. Outlets and light switches are supplied pre-installed inside wireway connecting posts, ready for on-site connections. Light fixtures also include pre-installed modular connections to enhance ease of installation. Load centers include pre-installed breakers to accommodate specified electric components. Load center also includes modular connections ready for on-site connection. Connection from main power source to the load center is to be completed by a certified electrician.

A wall-mounted ductless air conditioning unit in a room, displaying a clean, contemporary design. The unit is in operation with visible vents, situated above door height on a neutral-colored wall.

Ductless AC & HVAC Units

Ductless, electric powered wall mounted AC and HVAC systems are easy to install and very energy efficient. Multiple wall mounted units can be run off of a single small outdoor compressor.

Thru wall HVAC

Thru Wall HVAC

Through wall units are easily installed into our modular buildings. We supply wall cutouts shipped pre-framed from our factory. Power for the unit is typically supplied by an electrical outlet installed into the adjacent vertical raceway.

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Porta-King Building Systems
4133 Shoreline Drive
Earth City, Missouri 63045

(888) 210-3526

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