Custom Finishes for Modular Buildings: Panels, Colors and Exteriors

Panel skins, brand colors, ceilings, floors, doors and glass inside; brick, stone, metal cladding and roof styles outside. How to choose finishes that suit the work and your site.

Call (800) 326-4403 or email Sales@MH-USA.com

Guard shack with a brick wainscot, glass door and standing-seam roof at a facility entrance

Panel Skins

Vinyl, Painted Steel, FRP

Exterior

Veneers, Cladding, Roofs

Brand Colors

Matched to Your Codes

Function First

Washdown, ESD, Cleanroom

Finishes that fit the work and the brand

Modular does not have to look generic. Wall panel skins, trim color, doors, ceilings, floors and, on exterior buildings, cladding, roof and wainscot can all be chosen to suit the work inside and the look of your site.

Start with function: a washdown room, an ESD test room and a front-gate booth each rule out some finishes. Then choose color and style within what works. This guide covers interior and exterior options, branding and how finishes affect maintenance.

Two-story modular office with dark glass curtain walls inside a warehouse

For the panel construction behind the finish, see wall panels and insulation. For the full building range visit the in-plant buildings hub.

Interior finish options

Surface Common options Best for
Wall panel skins Vinyl-covered gypsum (standard in-plant), painted steel, FRP, stainless steel Offices and break rooms; impact areas; washdown; sanitary rooms
Trim and posts Factory-finished aluminum or steel trim in standard colors Clean lines; trim color can match or contrast panels
Ceilings Lay-in acoustic tiles, washable vinyl-faced tiles, cleanroom grid, open deck Quiet offices; food and pharma; cleanrooms; storage roofs
Floors Sealed concrete, VCT, luxury vinyl, carpet tile, ESD tile, epoxy or urethane See flooring options
Doors Painted steel, wood veneer, doors with vision lights, fire-rated assemblies Durability vs appearance; fire separation
Glazing Clear, tinted, wired, laminated, ballistic-rated See doors and windows
Accessories Whiteboard and tack surfaces, window blinds, corner guards, kick plates Meeting rooms, high-traffic doors
Inside a modular office: desk with monitors, glass partition walls and doors to neighboring rooms

Offices and meeting rooms

Supervisor and conference rooms often get a warmer finish: wood-look vinyl plank floors, wood-veneer doors, glass partitions and acoustic ceilings. Large windows toward the floor keep the visibility that makes an in-plant office useful.

Size and layout options are on the in-plant offices page.

Break rooms and lunch rooms

Durable vinyl wall skins, a resilient floor and washable surfaces around the kitchenette stand up to daily traffic. Bright lighting and windows make a plant break room feel like a break. See modular break rooms and conference rooms.

Modular break room with a kitchenette, refrigerator, conference table and chairs

Finishes for demanding environments

White modular panel room with a vision-panel door on a sealed floorCleanrooms and labsSmooth, non-shedding panel skins, flush trim, sealed or coved floors and cleanroom ceiling grid.
Turquoise machine enclosure inside a plant with a heavy-duty wall-mounted HVAC unitMachine and equipment enclosuresTough painted steel skins, high-visibility colors and impact protection at doors and corners.
Blue custom modular building inside a plant behind yellow steel guardrailHigh-traffic plant floorsContrasting colors and guardrail make a building easy to see from a forklift seat.

Washdown food areas use FRP or stainless skins with sealed joints and floors that drain; see our washdown food-processing project. Electronics rooms use ESD flooring and grounding; see ESD-controlled offices and test rooms. Fire-rated rooms need finishes tested for flame spread; see fire-rated in-plant offices.

Exterior finishes for booths and buildings

Entrance booth with stone wainscot, a dark finish and a flag at a park road

Masonry and stone wainscot

A brick or stone veneer wainscot ties a guard booth or small building to the architecture around it. It also takes the knocks at bumper height better than a painted panel. Pair it with a standing-seam or hip roof for a finished look at a front entrance.

For a deeper look at the outside of booths and exterior buildings alone, see our guide to custom exteriors for modular buildings: faux brick, faux rock and stone veneer options, roof styles, overhangs, color and trim, and how each is engineered for the site.

Metal cladding and roof colors

Painted steel or aluminum cladding comes in a range of standard colors, with roof fascia and trim in a contrasting color. Stainless steel suits corrosive or coastal sites. A colored roof or canopy makes a booth easy to find for drivers and visitors.

Browse booth styles on our guard booths page.

Guard booth with a blue roof at a vehicle access point beside bollards
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Roof styles

Flat with overhang, hip, gable, standing seam and extended canopies. See roofing and weather protection.

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Sun and heat

Light colors, tinted or low-e glass and roof overhangs keep sun-exposed booths cooler.

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Coastal and corrosive

Stainless or coated aluminum skins and sealed fasteners for salt air and chemicals.

Matching brand colors and standards

Tan steel guard shack with windows on every side and a rooftop HVAC unit on a concrete pad

Send your brand color codes (paint, RAL or Pantone references) or a sample, and we confirm which panel, trim and cladding colors are available as standard and which need a custom finish. Standard colors keep lead time and cost down; custom colors are priced in your quote.

Logos and wayfinding are usually applied after installation by your sign vendor, on a panel area we keep clear for it.

  • Decide early. Finish choices are set with the drawings; changes after approval can delay fabrication.
  • Think about cleaning. Glossy, smooth skins clean easily; textured finishes hide scuffs.
  • Plan for wear. Kick plates, corner guards and a durable wainscot save the finish at contact points.
  • Keep it reversible. Panels can be refreshed or swapped later without demolition.

Related guides: buyer’s guide, cost guide and maintenance guide. Want something unusual? See custom modular building solutions.

Finish selection by room type

Room Walls Floor Ceiling Doors
Supervisor office Vinyl-covered gypsum Luxury vinyl or VCT Acoustic lay-in Steel or wood with vision light
Shipping office Vinyl-covered or painted steel Sealed concrete or VCT Lay-in Steel; pass-through window
Break room Vinyl-covered gypsum Resilient tile or plank Washable lay-in Steel or wood
Washdown room FRP or stainless Seamless epoxy or urethane, coved Washable vinyl-faced FRP or stainless
Electronics test room Vinyl-covered or painted steel ESD tile, grounded Lay-in Steel with seals
Guard booth Painted steel or aluminum; veneer wainscot outside Rubber or resilient sheet Finished ceiling Steel; rated if required

Frequently asked questions

Can a modular building match our brand colors?
Often, yes. Send your color references and we confirm which standard panel, trim and cladding colors match and which need a custom finish, priced in your quote.
What is the standard wall finish for an in-plant office?
Vinyl-covered gypsum panel skins are the common standard. Painted steel, FRP and stainless are used where impact, washdown or sanitation call for them.
Can a guard booth have a brick or stone exterior?
Yes. A brick or stone veneer wainscot is a common way to match a booth to nearby buildings, often with a standing-seam or hip roof.
What is the best flooring for a warehouse office?
Resilient tile or luxury vinyl plank handles boot traffic and rolling chairs well. Sealed concrete is the simplest. Our flooring guide compares the options.
Can finishes be changed later?
Yes. Panels can be refreshed or replaced, flooring and ceiling tiles swapped and hardware upgraded without demolition.
Do custom finishes add lead time?
Standard colors and finishes keep the schedule; custom colors or special materials can add time, which we confirm with your quote.

Choose the finishes for your building

Tell us the use, location and any brand standards. We will propose finishes that fit and price them in your quote.

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Local service areas: Salt Lake City • Provo • Ogden • Park City • St. George • Logan • Lehi • Orem