Screens show color differently. Before you order, we bring physical ProVia samples to your home so you can see them in your own light.
All 28 Harbor Mill Colors
About ProVia Harbor Mill™ Siding
Cedar shakes have been on American houses since the 1600s, and nothing else gives a gable, dormer or porch wall quite the same texture. Harbor Mill recreates that look in polypropylene: ProVia laser-scanned hand-picked cedar pieces so every groove and split carries into the mold.
There are two profiles. The Single 7″ Rough-Sawn Shingle is tapered and even, with muted cross-grain, for a tidy, tailored look. The Single 8″ Staggered Hand-Split Shake has natural, uneven edges and deep grooves for a rustic, rugged wall. Both are moisture resistant and will not rot, need no paint, stain or caulk, rinse clean with a garden hose, are 100% recyclable and carry a Lifetime Limited Warranty.
Harbor Mill is made in every ProVia siding color plus Coal Black, 28 shades in all, so it can match your lap siding exactly or contrast with it. Click a swatch to preview it at the top of the page.
Harbor Mill Profiles
| Profile | Thickness | Panel length | Notes |
|---|---|---|---|
| Single 7″ Rough-Sawn Shingle | — | — | Uniform grain, straight edges |
| Single 8″ Staggered Hand-Split Shake | — | — | Natural edges, deep grain |
Color availability: Coal Black is a Harbor Mill-only color, ideal for modern accent walls and gables.
What’s Built Into Harbor Mill
- Polypropylene, molded from laser-scanned cedar
- Inherently moisture resistant, will not rot
- No painting, staining or caulking
- Alignment guide, continuous lock and receiving channel
- Center and stagger pattern marks for a random look
- 100% recyclable
- Lifetime Limited Warranty from ProVia
Harbor Mill Siding on Real Homes








See How ProVia Siding Is Made
ProVia Super Polymer Siding: Weather Resistance and Color Retention
ProVia Vinyl Siding Quality Assurance
Videos produced by ProVia, the manufacturer.
Harbor Mill Siding Questions
What is the difference between shake and shingle siding?
Shingles are sawn, so they are uniform with straight edges and a clean look. Shakes are split, so they have irregular edges and deeper grain for a rustic look.
Can a whole house be sided in Harbor Mill?
It can, but most homeowners use it as an accent on gables, dormers, bump-outs and porch walls over lap siding or stone.
Does Harbor Mill match ProVia lap siding colors?
Yes. It is made in every ProVia siding color, so an exact match or a planned contrast is easy.
How does it compare to real cedar shakes?
It has the same texture without the upkeep: no re-staining, no rot, no splitting and no woodpecker holes.
Found a color you like?
John Beal Roofing is a family-owned exterior contractor serving St. Louis, Kansas City and the Midwest. We measure your walls, bring real ProVia samples to your house, and give you a written siding price. Hail or wind damage? We can also help with the insurance claim.
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