Ceiling & Soffit
The fifth wall deserves real wood. Thermally modified boards, Brazilian hardwood, and Norx composite collections for porch ceilings, soffits, and interior overheads — light, straight, and custom milled.
Light overhead. Stable for decades.
Thermally Modified Ayous
The Lightest Board You Can Hang Overhead.
Scandinavian Thermally Modified Wood
Nordic Character for Porch Ceilings and Soffits.
Thermally Modified Ash
Rich Tone for Statement Ceilings.
Maximo Accoya
Modified Wood for Stable, Long-Life Overhead Applications.
Six species that finish the envelope.
Ipe
Deep Brown Soffits that Match the Deck.
Cumaru
Warm Grain for Covered Porches.
Garapa
Golden Ceilings that Brighten the Room.
Angelim
Straight, Stable, Soffit-Ready Stock.
Jatoba
Brazilian Cherry Overhead Drama.
Tigerwood
Figured Grain for the Fifth Wall.
Every ceiling and soffit profile cut in-house from our own inventory, in any dimension your drawings call for — with matching trim and molding.
Three collections, low-maintenance overhead.
Ceiling and soffit brands professionals rely on.
Thermally Modified Wood vs the alternatives.
| Thermally Modified Wood | Autoclave Treated | Kiln-Dried | Other Untreated | |
|---|---|---|---|---|
| Treatment method | Heat + steam only | Pressure chemicals | Heat drying | None |
| Chemical-free | Yes | No | Yes | Yes |
| Moisture absorption | Very low | Moderate | Moderate | High |
| Dimensional stability | Ultra stable | Fair | Good | Poor |
| Rot & decay resistance | Class 1–2 | Class 2–3 | Species dependent | Low |
| Insect resistance | High | High | Species dependent | Low |
| Resin bleed | None — resins removed | Possible | Possible | Likely |
| Color consistency | Through the board | Surface tint | Natural variation | Natural variation |
| Warranty | Up to 20 yr | 10–15 yr | Varies | None |
| Best use | Ceilings, soffits, saunas | Ground contact, framing | Interior, millwork | Temporary work |
See the material in finished spaces.
Tell us about the build.
Real wood overhead, supported coast to coast.
Lumber Plus supplies ceiling and soffit material for porches, lanais, eaves, and interior overheads across North America. The lineup spans thermally modified Ayous, Scandinavian pine, and ash — light enough to hang all day — plus Brazilian hardwoods and the Norx Rome, London, and New York composite collections.
Overhead boards live or die by stability. Thermally Modified Wood absorbs a fraction of the moisture of kiln-dried stock, so tongue-and-groove joints stay tight and nickel-gap lines stay even through humid summers. Every profile — T&G, V-groove, shiplap, nickel gap — is milled in-house with matching trim.
With nine branches from Miami to Boston, contractors and architects get local help coordinating ceiling, soffit, siding and fasteners. Request a quote so the nearest branch can confirm current profiles, availability and job-site delivery timing.
Job-site intel, monthly.
New species arrivals, clearance lots, and project updates — no noise.