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

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.

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 |

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.

Finishes for demanding environments
Cleanrooms and labsSmooth, non-shedding panel skins, flush trim, sealed or coved floors and cleanroom ceiling grid.
Machine and equipment enclosuresTough painted steel skins, high-visibility colors and impact protection at doors and corners.
High-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

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.

Matching brand colors and standards

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 |
Finish the Site: Bollards and Railing
Finishes last longer when vehicles cannot reach them. Steel bollards in silver or safety red, and pipe railing gates in silver or white, can be ordered online.
Frequently asked questions
Can a modular building match our brand colors?
What is the standard wall finish for an in-plant office?
Can a guard booth have a brick or stone exterior?
What is the best flooring for a warehouse office?
Can finishes be changed later?
Do custom finishes add lead time?
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.




