• Pre-Fabricated Arched Outdoor Fireplace masonry construction detail

FireRock

Firerock Adhesive Mortar

Firerock Adhesive Mortar

SKU: MORTAR

Price: $24.00
List Price:
Price: $24.00

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FIREROCK ADHESIVE MORTAR

FireRock Adhesive Mortar must be used to install firebox and FireRock masonry chimney for warranty to be valid (interior or exterior installations).

🚚 Shipping Notice: Orders under $500 ship for a flat $99 fee. Orders $500+ ship FREE.

How Many Bags Do I Need?

If you're purchasing a FireRock Pre-Fabricated Outdoor Fireplace or FireRock Pre-Fabricated Arched Outdoor Fireplace, this is exactly how many bags are included free and required to complete your installation — no guessing needed. Same bag counts apply to both the Conventional (straight-front) and Arched models, since they share the same firebox platform.

Fireplace Size Bags Needed Included Value
30-inch 7 bags ~$166
36-inch 8 bags ~$190
42-inch 11 bags ~$261

These quantities are automatically matched to your fireplace size and included free with every FireRock Pre-Fabricated Outdoor Fireplace or Arched Outdoor Fireplace purchase.

SPECS

• Weight per bag: 25 lbs

• For custom masonry builds outside of our prefab fireplace bundles, a general rule of thumb is approximately 1 bag of mortar for every 6 chimney block, plus additional mortar for firebox and smoke chamber assembly — contact us for help estimating a full bill of materials.


⚠️ WARNING: Burning wood/fuel can expose you to chemicals including carbon monoxide and soot, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.