Polar Thassos White 12x12 Polished Marble Tile - TILE & MOSAIC DEPOT
Polar Thassos White 12x12 Polished Marble Tile - TILE & MOSAIC DEPOT
Polar Thassos White 12x12 Polished Marble Tile - TILE & MOSAIC DEPOT
Polar Thassos White 12x12 Polished Marble Tile - TILE & MOSAIC DEPOT

Polar Thassos White 18x18 Polished Marble Tile

PWM18X18P0181

FREE SHIPPING • 2–3 DAY EXPRESS AVAILABLE
$12.75 / sq. ft.
$28.69 / Piece
QUANTITY
SOLD BY: sq ft Minimum: 50 sq. ft.
Minimum order: 50 sq. ft.
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.
Polar Thassos White Marble 4x12 polished tile showing pure crystalline white with virtually no veining — Tile & Mosaic Depot

Polar Thassos White Marble

Polar Thassos White Marble — the purest, most brilliant white marble available. Crystalline white with virtually no veining in tile and mosaic formats. The definitive choice for luxury bathrooms, spa spaces, and high-end kitchen applications. Free sample shipping.
  • MaterialNatural marble
  • FinishPolished
  • Size18 × 18 in
  • Thickness3/8" or 1/2" (10–12 mm), varies by shipment
  • VariationV2, slight
  • UseIndoor floor and wall

Polar Thassos White Marble18 × 18 Polished

A bright white marble in a generous 18 × 18 format, polished to a reflective surface for indoor floors and walls.

Polar Thassos White is a pure white marble with a fine crystalline grain and very little veining. The polished finish catches light and keeps the surface bright. At 18 × 18, the format means fewer grout joints across a floor or wall.

White this clean shows what sits beside it. Polished chrome or brushed nickel, pale oak cabinetry, and soft gray or warm greige grout all suit it. Set it in bright white thinset rather than gray, so nothing shadows through the pale stone.

Tiles can show subtle tonal shifts and faint cloudy mineral inclusions. Samples are $7.99 each, up to 10 per order. Samples ship free, 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

  • Feature wallA polished white surface that reflects light and gives a room a clean focal point.
  • Bathroom wallLarge format keeps grout lines to a minimum. Seal before grouting.
  • Kitchen backsplashA bright, even backdrop. Wipe spills quickly, since acids can etch polished marble.
  • Low-traffic indoor floorSuits a bathroom or powder room floor. Seal first and keep up with resealing.
  • Shower and wet-room floorsNot recommended until suitability is confirmed for this tile.
  • Commercial, high-traffic, and outdoor usePolished marble can scratch under heavy foot traffic. Indoor residential use only.

Specifications

Material
Natural marble
Stone Type
Marble
Color
White with faint crystalline variation
Finish
Polished
Tile Type
Field tile
Size
18 × 18 in
Thickness
3/8" or 1/2" (10–12 mm), varies by shipment
Coverage
2.25 sq ft per tile
Shade Variation
V2, slight
Origin
Europe
Application
Indoor floor and wall
Sold By
Per sq ft

Care & Cleaning

Seal It

Apply a penetrating stone sealer before grouting. Two coats at the start give the best stain protection. In wet areas, reseal every 6–12 months.

Clean It

Use a pH-neutral stone cleaner and a soft microfiber cloth or mop. Avoid vinegar, citrus cleaners, bleach, and abrasive scrubbers, which can dull the polish.

Expect This

Natural marble can show subtle tonal shifts and faint cloudy inclusions. A polished surface can etch from acids and show scratches under heavy traffic.

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?

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

Does this marble need to be sealed?

You can protect it with a penetrating stone sealer, which we recommend applying before grouting. Pure white stone shows stains clearly, so a thorough seal helps. Reseal every 6–12 months in wet areas.

How much does one tile cover?

Each 18 × 18 tile covers 2.25 sq ft. Add 10% to your measured area for cuts and waste, and order it all at once.

How should I clean polished Thassos White?

A pH-neutral stone cleaner and a soft microfiber cloth keep the polish clear. Wipe up spills quickly. Coffee, wine, and citrus can stain or etch the surface, and acidic cleaners are best avoided.




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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