Gray polished marble tile with 18x18 inch size, natural stone surface, showcasing the elegant Tundra Gray marble pattern.

Tundra Gray Marble 18x18 Polished Tile

TGM18X18P0029

FREE SHIPPING • 2–3 DAY EXPRESS AVAILABLE
$9.95 / sq. ft.
$22.39 / Piece
QUANTITY
SOLD BY: sq ft Minimum: 50 sq. ft.
Minimum order: 50 sq. ft.
TOTAL PRICE:
—
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.
Tundra Gray marble 18x18 polished tile in warm cloudy gray with soft white veining for bathroom floor and contemporary feature wall applications — Tile & Mosaic Depot

Tundra Gray Marble

Tundra Gray marble — warm cloudy gray Turkish marble with soft white veining and atmospheric movement. Warmer than Spanish Grey, softer than Pietra Gray. Polished and honed finishes in tile and mosaic formats for bathroom floors, shower walls, and contemporary feature applications. Free sample shipping.
  • MaterialNatural Marble
  • FinishPolished
  • Size18 × 18 in
  • Thickness3/8" or 1/2"
  • VariationV2, Slight
  • UseIndoor Wall & Floor

Tundra Gray Marble18 × 18 Polished

A gray marble with white and charcoal veining, in an 18 × 18 format with a polished finish.

Tundra Gray is a fine-grained marble with a gray ground and white and charcoal veining. In our photo, lighter clouds sit beside darker brown-gray patches, so each tile reads a little differently. The polish deepens the color and reflects light.

The 18 × 18 format means fewer grout joints. It suits feature walls, backsplashes and low-traffic indoor floors. Lay it straight or offset. A soft grout color keeps the field calm and lets the veining lead.

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 WallLarge tiles give a calm, continuous surface with few joints.
  • Bathroom WallThe polish reflects light and brightens a vanity or tub wall.
  • Kitchen BacksplashA quiet gray field behind counters and range. Seal before grouting.
  • Low-Traffic FloorWorks in an entry or powder room indoors, with sealing and gentle care.
  • Outdoor & Pool AreasPolished marble is not suited to exterior use.
  • Commercial & Shower FloorsPolished marble can etch and scratch under heavy use or in wet-floor conditions.

Specifications

Material
Natural marble
Color
Gray with white and charcoal veining
Finish
Polished
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
Application
Indoor wall and floor
Sold By
Per sq ft

Care & Cleaning

Seal It

Seal with a penetrating, pH-neutral stone sealer before grouting. Polished marble is dense but still porous. Reseal as needed, more often in wet areas.

Clean It

Use a pH-neutral stone cleaner or mild dish soap in warm water. Avoid vinegar, citrus and abrasive products. Wipe spills quickly and dry the surface.

Expect This

Polished marble can etch from acids and scratch over time. Veining, tone and mineral inclusions differ from tile to tile. That is part of natural stone.

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 look like 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 samples?

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

How much tile do I need to order?

Each 18 × 18 tile covers 2.25 sq ft. Measure your area, then add 10% for cuts and waste, and order it all at once.

Does this marble need sealing?

Sealing protects the stone and makes cleanup easier. Apply a penetrating, pH-neutral stone sealer before grouting, then reseal as needed.

Can I use it outdoors?

Tundra Gray is specified for indoor walls and floors, so it fits interior projects well. Polished marble is not suited to exterior use.




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.

More From This Collection

View all
Gray marble 12x12 honed tile from Tundra collection, natural stone surface with subtle veining and smooth matte finish.
Gray marble natural stone tile with 12x12 honed surface, suitable for bathroom and flooring applications.
Tundra Gray Marble 12x12 Honed Tile
$9.99 /sq. ft.
Gray marble tile with polished 12x12 natural stone surface, ideal for flooring or backsplashes from TILE AND MOSAIC DEPOT.
Tundra Gray Marble 12x12 Polished Tile
$11.45 /sq. ft.
Gray marble Tundra 12x24 honed natural stone tile with a smooth finish, showcasing elegant veining and a polished surface.
Gray marble Tundra natural stone tile in 12x24 honed finish, showcasing smooth surface and elegant veining.
Tundra Gray Marble 12x24 Honed Tile
$8.95 /sq. ft.$15.95
Gray marble Tundra 2x2 hexagon mosaic tile with honed finish, showcasing its elegant, natural stone pattern and textured surface.
Gray marble Tundra 2x2 hexagon mosaic tile with honed finish, ideal for bathroom or kitchen wall and floor accents.
Tundra Gray Marble 2x2 Hexagon Honed Mosaic Tile
$13.95 /sheet$18.95
Gray marble Tundra 2x2 hexagon mosaic tile by TILE AND MOSAIC DEPOT, polished surface, showcasing intricate hexagon pattern.
Gray marble Tundra 2x2 hexagon mosaic tile with polished finish, perfect for modern interior or backsplash design.
Tundra Gray Marble 2x2 Hexagon Polished Mosaic Tile
$13.95 /sheet$18.95
Gray marble tile from Tundra collection, 12x24 polished natural stone tile with elegant, smooth surface and veined pattern.
Gray Tundra marble 12x24 polished natural stone tile with smooth surface and elegant veining, ideal for flooring and backsplashes.
Tundra Gray Marble 12x24 Polished Tile
$8.95 /sq. ft.$15.95
Gray marble mosaic tile by TILE AND MOSAIC DEPOT, Tundra Gray 2x2 honed marble mosaic tile with natural stone pattern.
Tundra Gray Marble 2x2 Honed Mosaic Tile
$13.95 /sheet$18.95
Gray marble mosaic tile by MX, Tundra Gray 2x2 tumbled marble mosaic tile for flooring and wall accents.
Gray marble mosaic tile by MX, Tundra Tumbled 2x2 inch mosaic tile for showers, with antique tumbled finish and natural stone appearance.
Tundra Gray Marble 2x2 Tumbled Mosaic Tile
$11.95 /sheet$18.95

Recently viewed

Back to Gray