Can I install tongue-and-groove over existing drywall?

Yes, you can nail or screw through drywall into ceiling joists, or install furring strips first. Furring strips provide a more reliable nailing surface.

Which direction should T&G boards run on a ceiling?

Running boards perpendicular to ceiling joists provides direct nailing. Aesthetically, running boards along the length of a rectangular room makes it feel longer.

Do I need to acclimate tongue-and-groove boards?

Yes, acclimate boards in the room for 3-5 days to reach equilibrium moisture content. This prevents gaps or buckling after installation.

How to Install a Tongue-and-Groove Ceiling: Complete DIY Guide | Lumberama

intermediate

2-3 days for a 12x14-foot room

$500 - $2,000

How to Install a Tongue-and-Groove Ceiling (2026)

Prepared by Lumberama's Building Projects Team

|Last updated May 26, 2026|Sources & methodology

A tongue-and-groove wood ceiling transforms any room with warmth and architectural character. Whether you're going for a rustic cabin feel or a sleek modern look, T&G boards add dimension and visual interest overhead. This project is intermediate in difficulty, mainly because of the overhead work involved, but the installation technique itself is straightforward.

Key Takeaways

A tongue-and-groove wood ceiling transforms any room with warmth and architectural character.
Whether you're going for a rustic cabin feel or a sleek modern look, T&G boards add dimension and visual interest overhead.
This project is intermediate in difficulty, mainly because of the overhead work involved, but the installation technique itself is straightforward.
Pre-finish the boards before installation — it's much easier on the ground than overhead.
Use a laser level for your first chalk line to guarantee a straight start.

Tools Needed

Miter saw, brad nailer, air compressor, drill/driver, stud finder, tape measure, chalk line, level, laser level (helpful), caulk gun (for adhesive), scaffolding or stable platform, safety glasses

Materials List

1x6 tongue-and-groove boards (cedar, pine, or poplar), 18-gauge brad nails (2 inch), construction adhesive, furring strips (1x3, if needed over drywall), paint or stain, polyurethane or clear coat

Recommended Species

Knotty Pine, Western Red Cedar, Poplar, White Pine, Cypress

Recommended Sizes

1x6 tongue-and-groove boards, 8-foot and 12-foot lengths, 1x3 furring strips

Pro Tips

Pre-finish the boards before installation — it's much easier on the ground than overhead. Use a laser level for your first chalk line to guarantee a straight start. Rack boards from multiple bundles to distribute color variation evenly. Apply construction adhesive plus nails for the most secure hold on ceilings.