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#2 Pine 1x6 Lumber
What It Is and How to Pick the Right Board
Building MaterialsA 1x6 #2 pine board is the workhorse of finish and utility lumber — and the first thing to understand is that the label lies a little. The nominal dimension is 1 inch by 6 inches, but the actual finished size is 3/4 inch by 5 1/2 inches. Length is the honest part. The width and thickness shrink during milling and drying; the footage you order is the footage you get.
The grade is the other half of the equation. The #2 grade is standard construction-grade lumber containing knots and minor defects, making it ideal for utility work, rustic furniture, or projects where the wood will be painted. That’s not a knock — it’s a fit. No. 2 Grade is a good-quality material suitable for patterns and general-purpose uses. If you want clear, knot-free stock for a stained showpiece, you’re looking at a higher grade. For paneling, shelving, trim that gets painted, and shop projects, #2 pine earns its keep.
This board suits contractors and serious DIY builders who need a paintable, easy-working softwood that cuts, sands, and fastens without a fight. Eastern White Pine #2 is a versatile, cost-effective, and widely used softwood perfect for both residential and commercial building projects, with an attractive natural appearance and structural reliability that makes it ideal for framing, paneling, siding, and a variety of other applications.
Sizes, Grades, and Profiles
Western Building Center carries 1x6 #2 pine as plain S4S boards in 8-, 10-, 12-, and 16-foot lengths. S4S means surfaced four sides — finished and ready to use straight off the rack, no jointing or planing first.
Beyond plain boards, 1x6 #2 pine shows up in milled patterns for siding and paneling. Schillings #2 White Pine T&G Center V-Joint siding is met with the highest grading standards for strength and appearance, installs with tongue-and-groove pieces that click into place, and is reversible with a v-joint in the center of one side. The pattern numbers matter when you’re matching an existing job: that T&G Center V-Joint runs Pattern #116/WP4, with actual dimensions of 3/4″ x 5-1/2″ x 16′, actual exposure of 4-3/4″, and coverage per piece of 6.32 square feet. On the Southern Pine side, drop siding is machined in a variety of numbered patterns such as #105, #117, and #122. Pattern #117 is siding; Pattern #122 is a T&G V-groove common in paneling and interior finishing.
| Spec | Detail |
|---|---|
| Nominal size | 1 x 6 |
| Actual size | 3/4″ x 5-1/2″ |
| Grade | #2 (common) |
| Surfacing | S4S (surfaced four sides) |
| WBC plain-board lengths | 8′, 10′, 12′, 16′ |
| Common species | Eastern White Pine, Southern Yellow Pine |
| T&G siding exposure (Pattern #116) | 4-3/4″ |
| T&G coverage per 16′ piece | 6.32 sq ft |
A note on grading consistency: the allowable characteristics within each grade are described in the Standard Grading Rules, and a complete lumber grade description should be included with any buyer’s order — it’s considered an agreement between buyer and seller on the specific characteristics allowed with each grade purchased.
Matching the Board to the Job and Installing It Right
What 1x6 #2 pine does well covers a lot of ground. It’s ideal for paneling, trim, siding, shelving, and light framing, with adaptability that suits both traditional and modern designs. The grain reads warm and the knots give it character. These boards can be stained, painted, or left unfinished to highlight their natural beauty, and they provide reliable strength and stability for structural work while offering the flexibility needed for decorative applications like trim or paneling. Paint-grade work hides the knots best; if you’re after a rustic look, leave them showing.
Pine is forgiving on the tools. It’s lightweight, robust, and simple to work with. That softness is also its limitation outdoors. Untreated pine isn’t a ground-contact material — for exterior exposure you want it sealed, finished, and kept off the dirt, or you specify a naturally durable species or treated stock instead.
Moisture is the whole game in this climate. Wide humidity swings and freeze-thaw cycling will move any board that wasn’t dried and acclimated right. Choose kiln-dried boards for indoor projects to ensure dimensional stability. Wood shrinks and swells with changes in its moisture content, so to minimize dimensional changes after installation, install at a moisture content that matches the local climate as closely as possible. Let stock sit on site before you cut it.
Before any of it goes up, sort your pile. Inspect boards for straightness by sighting down the edge to check for bowing, twisting, or warping. Set aside anything with edge knots in a spot that’ll carry load.
Fastening depends on the job. Use fasteners compatible with your application — finish nails for trim, galvanized fasteners for exterior use — and avoid splitting the wood by driving fasteners at the correct depth and angle. Pine splits easily near the ends, so mind your spacing.
For T&G siding, the method is specific. It is essential that the wood be kept dry before and during construction. Run your courses smart: horizontal siding should be spaced so that a single piece runs continuously above and below windows and doors without notching or splicing. Fit it tight: siding should be butted snugly and squarely against door and window casings, corner boards, and adjoining boards, and mitered corners should be precisely fitted, avoiding creation of any cavities where moisture could collect. That last point matters everywhere temperature and humidity swing hard — a sloppy corner is a water trap.
Nailing pattern for boards 6 inches and wider: boards 6″ or wider are face-nailed with two 8d nails, all nailing should be done into studs, and the total effective penetration of the nail should be at least 1-1/2″. On T&G stock you blind-nail through the tongue where the width allows it. Southern Pine siding is relatively easy to install when the prep is right.
Order smart on quantity. Buy 10–15% extra to account for potential waste from defects, cutting errors, and the boards that don’t make the cut when you sight down the edge.
Frequently Asked Questions
What is the actual size of a 1x6 board? A 1x6 board has a nominal dimension of 1 inch by 6 inches, but its actual finished size is 3/4 inch by 5 1/2 inches after kiln-drying and surfacing. The length you order is accurate — only the thickness and width shrink from the nominal label.
What does #2 grade pine mean? It’s standard construction-grade lumber containing knots and minor defects, which makes it ideal for utility work, rustic furniture, or projects where the wood will be painted. It’s a good-quality material suitable for patterns and general-purpose uses.
What can you build with 1x6 #2 pine? Knotty pine is used especially for interior finish, shelving, paneling, and siding. It’s also well suited to trim and light framing. With 16-foot lengths available, the boards work well for paneling, siding, trim work, and cabinetry.
Can 1x6 #2 pine be used outside? It can, with the right prep. The board takes finish well — #2 white pine is lightweight and can be painted or stained with ease. But untreated pine needs to be sealed, finished, and kept dry. It is essential that the wood be kept dry before and during construction. For ground contact or hard exposure, step up to a treated or naturally durable material.
Does pine warp and shrink? Any wood moves with moisture. The way to manage it: choose kiln-dried boards for indoor projects to ensure dimensional stability, and install at a moisture content that matches the local climate as closely as possible, since wood shrinks and swells with changes in its moisture content. The species itself is naturally resistant to shrinking, swelling, and cracking when handled right.
What lengths does 1x6 #2 pine come in? Western Building Center carries plain S4S 1x6 #2 pine in 8-, 10-, 12-, and 16-foot lengths. Milled T&G siding patterns are commonly stocked in 16-foot pieces.
How do you nail 1x6 pine siding? Boards 6 inches or wider are face-nailed with two 8d nails, all nailing should be done into studs, and the total effective penetration of the nail should be at least 1-1/2 inches. Use noncorrosive fasteners on exterior work and drive at the right angle to keep the softwood from splitting.