Clapboard Siding: What It Is, Cost by Material & vs Dutch Lap
Independent — we don't sell or install siding · Last updated September 2026 · Data as of August 2026 · 2026 planning ranges, not quotes
The short answer
Clapboard siding is horizontal boards that each overlap the one below — traditionally tapered wood “bevel” boards, now also made in vinyl, fiber cement, engineered wood and steel. It costs about $3.50–$16 per square foot installed depending on material, so the material you choose moves the price far more than the clapboard profile does. Dutch lap is the same idea with a grooved top edge for a deeper shadow.
What clapboard siding is
A clapboard is a long, narrow board installed horizontally, with each course lapping over the top of the one below so water runs off the face instead of into the wall. Traditional wood clapboards are bevel-sawn: thick at the bottom edge and thin at the top, which is why the terms clapboard, bevel siding and lap siding are used almost interchangeably.
The profile is centuries old — it defines the New England colonial and Cape Cod look — and it is still the most common siding look in the U.S. What changed is the material: most “clapboard” installed today is vinyl molded to look like two or three courses per panel, or fiber cement and engineered wood planks hung one course at a time.
Clapboard vs lap, bevel and Dutch lap siding
These names overlap more than they differ. Lap siding is the category; clapboard is the traditional profile within it; the real physical differences are whether the board tapers, whether it's solid or a hollow vinyl shell, and whether the course has a groove.
- 1Wood bevel clapboard is tapered: a thick butt at the bottom edge, a thin top edge.
- 2The lap — each course covers the top of the one below and hides its nails (1¼″ minimum on HardiePlank).
- 3The exposure (reveal) is the face you see, butt to butt — the number that sets the look.
- 4Fiber cement and engineered wood planks are the same thickness top to bottom; the shadow line comes from the plank edge.
- 5Vinyl clapboard is a hollow shell molded as two or three courses per panel, hung from a nailing hem.
- 6Dutch lap adds a concave groove to the top of each course for a second, softer shadow.
| Term | What it means |
|---|---|
| Lap siding | Any horizontal siding where each course overlaps the one below. The umbrella term. |
| Clapboard | Lap siding in the traditional board profile; in practice used for the look in any material. |
| Bevel siding | The lumber-yard name for tapered clapboard — thick butt, thin top edge. |
| Dutch lap | Lap siding with a concave groove on each course. Mostly vinyl. |
| Weatherboard | The British and Australian word for clapboard. |
In fiber cement the clapboard look is mostly James Hardie's HardiePlank — what Hardie board is. On vinyl, cut clapboard ends finish into J-channel around windows and doors.
Clapboard siding cost by material
| Material | Installed / sq ft | 1,500 sq ft of wall | Notes |
|---|---|---|---|
| Vinyl clapboard | $3.50–$6 | $5,250–$9,000 | Hollow panels molded to look like two or three courses of clapboard. Cheapest; never needs paint. |
| Fiber cement clapboard | $6–$12 | $9,000–$18,000 | Individual planks (HardiePlank) with a crisp, painted-wood look. Non-combustible. |
| Engineered wood clapboard | $8–$14 | $12,000–$21,000 | LP SmartSide and similar lap boards; lighter than fiber cement, repainted every 8–12 years. |
| Cedar clapboard | $5–$15 | $7,500–$22,500 | The original — tapered bevel boards. Stain every 3–5 years or paint every 5–7. |
| Steel clapboard | $7–$16 | $10,500–$24,000 | Steel lap panels with a clapboard profile; longest-lived, dents rather than cracks. |
Each row uses the same figures as that material's own cost page. Totals are before tearing off old siding (about $1–$2 per sq ft more). For real wood, species and grade swing the price most — the cedar clapboard siding cost page has a calculator for that.
Clapboard vs Dutch lap
Both are horizontal lap siding; the difference is the top edge of each course.
| Clapboard | Dutch lap | |
|---|---|---|
| Profile | Flat or tapered face, simple overlap | Concave groove along the top of each course |
| Look | Clean, crisp lines; colonial and modern | Deeper shadow line; more traditional, hand-crafted feel |
| Vinyl, installed / sq ft | $3.50–$6 | $4–$6.50 |
| Where you'll see it | Every material | Mostly vinyl and some wood; rarer in fiber cement |
Dutch lap's groove can make faded or wavy vinyl less obvious because the shadow breaks up the face; clapboard shows a straighter, more architectural line. Neither performs better — it is a looks decision, and the small price gap only shows up in vinyl.
Clapboard exposure sizes
The exposure (or reveal) is how much of each board shows. It sets the character of the wall more than any other clapboard decision.
| Exposure | How it reads |
|---|---|
| 3–4" | Narrow, historic look on older colonials and cottages; more courses and more labor. |
| 4–5" | The classic New England proportion and the most common for vinyl double-4 panels. |
| 6–7" | A bolder, modern line; common for fiber cement and engineered wood planks. |
| 8"+ | Wide, contemporary boards; fewer courses, reads best on larger walls. |
Narrower exposures mean more courses per wall, so slightly more labor. On historic homes, matching the original exposure is often what a preservation review cares about most.
Which clapboard material to choose
For the lowest cost and upkeep
Vinyl clapboard — cheapest to install, never needs paint; choose a heavier gauge for straighter walls.
For the most authentic painted-wood look
Fiber cement for the longest life and fire resistance, or engineered wood for a lighter, impact-resistant board. Both are hung one plank at a time like real clapboard.
For the real thing
Cedar clapboard — the original, and the only one that ages like wood. Budget for restaining every 3–5 years.
Still deciding on the style itself? The vertical alternative is board and batten.
Keep going
Frequently asked questions
- What is clapboard siding?
- Horizontal boards, each overlapping the one below to shed water. Traditionally tapered wood boards (bevel siding); today the look comes in vinyl, fiber cement, engineered wood and steel too.
- How much does clapboard siding cost?
- About $3.50–$16 per sq ft installed by material — vinyl at the bottom, cedar and steel at the top.
- What is the difference between clapboard and Dutch lap siding?
- Both are horizontal lap. Dutch lap adds a concave groove at the top of each course for a deeper shadow line; clapboard is a simple overlap. In vinyl, Dutch lap runs $4–$6.50/sq ft vs $3.50–$6 for clapboard.
- Is clapboard siding still used?
- Yes — the clapboard profile is still the most common siding look in the U.S., mostly now in vinyl, fiber cement and engineered wood. Real wood clapboard is still made for historic homes.
- Is clapboard the same as lap siding?
- Nearly. Lap siding is the general term; clapboard (or bevel siding) traditionally means the tapered wood version. In practice the names are used interchangeably.
- Is clapboard siding expensive?
- Not inherently — the material sets the price. Vinyl clapboard is among the cheapest sidings; clear cedar clapboard among the priciest. Narrow exposures cost a bit more (more courses).
- What's the difference between siding and clapboard?
- Siding is any exterior cladding; clapboard is one style of it — overlapping horizontal boards. Board and batten, shakes and stucco are siding but not clapboard.
- Why is it called clapboard siding?
- From the Middle Dutch klapholt — split oak boards first used for barrel staves. Hand-split boards were wedge-shaped, which is where the tapered profile comes from.
Cost figures are independent 2026 planning estimates and vary by home, material, region, and installer.