Thassos White Marble 2x12 polished 1-step chairrail, a sleek marble molding for interior trim and decorative accents.
Thassos White marble 2x12 polished 1-step chairrail molding, natural white finish for interior trim and decorative accents.
Thassos White Marble 2x12 polished 1-step chairrail, a sleek marble molding for interior trim and decorative accents.
Thassos White marble 2x12 polished 1-step chairrail molding, natural white finish for interior trim and decorative accents.

Thassos White Marble 2x12 Polished 1 Step Chairrail

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FREE SHIPPING • 2–3 DAY EXPRESS AVAILABLE
$13.25 / Piece
QUANTITY
TOTAL PRICE:
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Samples ship free · Fast nationwide shipping · 30-day returns
Order your full amount plus 10% at once — reorders may vary in tone and veining. Shipping damage is covered with photos; small shortages (1–5 pieces) are refunded, NOT reshipped, so the extra 10% protects you.
Thassos White marble polished tile in pure crystalline white with virtually no veining for luxury bathroom and spa application — Tile & Mosaic Depot

Thassos White Marble

Thassos White marble — the purest, most brilliantly white marble in the world. Quarried exclusively on the Greek island of Thassos with crystalline white and virtually no veining. Tile and mosaic formats in polished and honed finishes for luxury bathrooms, spa spaces, and pool interiors. Free sample shipping on all products.
  • MaterialNatural marble
  • FinishPolished
  • Size2 × 12 in
  • Profile1-step chair rail
  • VariationV1, Uniform
  • UseIndoor wall and accent

Thassos White Marble Chair Rail2 × 12 Polished, 1 Step

A polished white marble chair rail with one raised step, made to finish wall borders and cap tile fields.

This 2 × 12 chair rail has a rounded top rail above a single step. The profile gives a tile field, wainscoting or wall border a defined edge without crowding the design around it.

Thassos White is an even white with little veining. The polished finish adds gloss along the curve and catches light on the step. Sample it next to your field tile and grout to judge the white in your own light.

Samples are $7.99 each, up to 10 per order. Samples ship free and go out within 1-3 business days. Your sample comes from the lot we have in stock now, so it shows that lot's actual color range and finish. Future lots may look lighter, darker, or more veined, so order your full quantity plus 10% at once to keep the whole job from one lot.

Order a sample, $7.99, ships free Ask a specialist

Where It Works

  • Bathroom wall borderMarks a clean transition between tile and painted wall.
  • Wainscoting capFinishes the top edge of a tiled or paneled lower wall.
  • Backsplash capGives the top edge of a kitchen or bath backsplash a finished line.
  • Fireplace surround trimAdds a border accent to a tiled fireplace field.
  • FloorsThe polished profile is a slip and chipping hazard.
  • OutdoorsMoisture and freeze-thaw cycles can damage polished marble.

Specifications

Material
Natural marble (Thassos White)
Color
White
Type
Marble molding, 1-step chair rail
Piece Size
2 × 12 in
Finish
Polished
Application
Indoor wall and accent
Shade Variation
V1, Uniform
Origin
Europe

Care & Cleaning

Seal It

Seal before installation with a penetrating sealer made for white or light marble. Reseal as needed, and more often in wet areas.

Clean It

Use a pH-neutral stone cleaner and a soft cloth. Avoid vinegar, citrus, bleach and other acidic cleaners, which can etch the polish.

Expect This

Natural marble can show subtle shifts in crystal density and shading from piece to piece. Wipe spills quickly, since white stone shows stains.

Tile & Mosaic Depot supplies material only. Installation method, setting materials, and substrate are your installer's responsibility. Inspect every piece before setting; installation is acceptance, and installed material cannot be returned or claimed.

Questions

Will my order match the sample?

Your sample comes from the lot we have in stock now, so it shows that lot's actual color range and finish. Future lots may look lighter, darker, or more veined, so order your full quantity plus 10% at once to keep the whole job from one lot.

How do I order a sample?

Add up to 10 samples to one order at $7.99 each. Samples ship free and go out within 1-3 business days.

Does this chair rail need sealing?

Yes. Seal it before installation with a penetrating sealer made for white or light-colored marble. Resealing keeps the surface better protected against stains.

What mortar should I use?

Use white polymer-modified thinset and back-butter each piece for full contact. White thinset helps prevent gray showing through this white stone.

Where can I use it?

Use it on indoor walls as a border, cap or accent trim. Keep it off floors and outdoors, where the polished profile and moisture are a poor fit.




Why Order a Sample
A screen can't show you how Calacatta veining reads under your kitchen lights or how a porcelain finish sits next to your cabinet color. A sample can. It's the single best way to buy stone or porcelain tile with confidence — and the cheapest mistake you'll ever avoid.

How It Works
Samples are $7.99 each. Samples ship free and leave our warehouse within 1–3 business days. Sizes vary by material and availability — typically 3"×3" up to 8"×8" — and every sample is cut from the same material stocked for full orders.

What a Sample Shows
Color, texture, finish, and overall character. Because natural stone varies piece to piece, one sample represents the material but can't show the full range of a lot. Porcelain samples are highly representative of the production run. Want to see the current lot before you commit? Ask us — we'll send photos.

Good to Know

  • Samples are final sale — non-returnable and non-refundable.
  • We recommend sampling before every full order, especially for natural stone.
  • Larger or custom quantity? Contact us for a tailored quote.

Talk to a Specialist
Our stone and tile specialists will help you narrow it down. Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday, 8:30 AM–5 PM PT.

How Your Order Ships
In-stock orders leave our warehouse within 2–3 business days. Stone, porcelain, and mosaic ship on a pallet via scheduled LTL freight and arrive 2–10 business days after dispatch, depending on destination. You'll get tracking and the carrier's name by email the day it ships.

Freight Delivery — What to Expect

  • The carrier calls you first. Every freight delivery is by appointment. Expect a call or text to set a window before the truck is dispatched.
  • Curbside delivery. The driver unloads to the curb or driveway. Freight does not include carrying material indoors or into a garage — plan for a helper or a hand truck.
  • Someone 18+ must sign. Inspect the pallet before signing. Note any damage, shortage, or broken shrink-wrap on the delivery receipt — this is what makes a claim valid.
  • Truck access. The address must be accessible to a full-size freight truck with enough space to unload.

Free Shipping
Free curbside freight on qualifying mosaic and molding orders over $1,999 in the continental U.S. Field tile, porcelain, and other product types ship at freight rates shown at checkout. Not available to Hawaii, Alaska, U.S. territories, or international addresses.

Damage & Shortages
Report within 3 calendar days of delivery with photos of the pallet, packaging, and affected pieces to sales@tileandmosaicdepot.com. Verified claims are covered. Shortages of 1–5 pieces are refunded rather than reshipped — which is why we recommend ordering 10% overage.

30-Day Returns
Uninstalled tile in full, unopened boxes may be returned within 30 days of delivery. Return freight is paid by the customer. Partial boxes, opened boxes, installed material, and samples are final sale.

Questions Before You Order?
Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday 8:30 AM–5 PM PT. If you're unsure about freight access at your address, ask us before checkout — we'll flag anything that could hold up delivery.

Natural Variation
Quarried stone varies in color, veining, shade, movement, and finish from piece to piece and from lot to lot. Screen photos and samples show the range, not the exact tile you'll receive. Variation is the nature of the material and is never grounds for return. Porcelain is far more consistent, but shade and pattern can still shift between production runs — buy your full quantity in one order.

Before You Install

  • Order 10% overage. Covers cuts, breakage, and spares for future repairs. Reorders may not match in tone or lot.
  • Inspect every piece before setting. Pull from all boxes, blend, and dry-lay the full area. Installation is acceptance — no claims are honored once tile is set.
  • Hire a qualified installer. Natural stone and large-format porcelain require experience with the material. Your installer is responsible for substrate, setting materials, and method.

Sealing & Care
Natural stone should be sealed with a penetrating sealer and re-sealed periodically in wet and high-traffic areas. Clean with a pH-neutral stone cleaner only — vinegar, bleach, ammonia, and acidic cleaners etch marble, limestone, travertine, and onyx permanently. Porcelain does not require sealing. Outdoor stone weathers and shifts in tone over time; this is expected.

Responsibility
Tile & Mosaic Depot supplies material only. We are not responsible for installation, labor costs, substrate conditions, setting materials, product misuse, or damage from handling, sealing, maintenance, or chemicals. No claims, returns, or replacements are accepted on installed material.

California Proposition 65
Some natural stone and porcelain products contain substances known to the State of California to cause cancer or reproductive harm. Details at www.P65Warnings.ca.gov.

The Natural Stone & Porcelain Tile Specialists

Direct from the Producers

We buy directly from the mills and factories that cut and finish our tile, so pricing stays sharp and lots stay consistent.

Samples Ship Free

$7.99 per sample with no shipping charge, shipped within 1–3 business days. See the current material before you commit.

Ask a Specialist

Email us anytime with a question about our products at sales@tileandmosaicdepot.com. We'll get back to you during our business hours, Mon–Fri 8:30 AM–5 PM PT.

30-Day Returns

Uninstalled tile in full, unopened boxes may be returned within 30 days. No partial returns. Order with confidence.

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