Fire Clay, Fireclay, Mortar Clay and/or Bricklayers Clay is an organic material that has been dried and turned into a powder form. It is usually a brackish red / brown in color or it could be white / grey. The texture is like baking flour or baking soda.

These powdered clays can be found at most Masonry and Landscape Supply Stores for about $10 per 50lb bag of firing clay (also see companies below).

You may find a bag of fire clay at a Big Box hardware store like Home Depot, Lowes or Menards - but it’s unlikely. 

If you can’t find a bag near you, check with your local Ceramic / Pottery Supply - or - Laguna Clay and they can order a bag of Fire clay for you (w/out shipping charges).

If all else fails, we can always ship you a bag of Fire Clay - We've got plenty in stock!  But keep in mind - FedEx Ground is expensive, so we begrudgingly have to add that to the cost of the fire clay... 

• Low Fire Clay - Very Porous / Not Waterproof
• Mid Fire Clay - Excellent Bonding Properties / Waterproof
• High Fire Clay - Excellent Bonding Properties / Waterproof 

High-Temperature Mortar Mix Recipe: 

3 Parts Silica Sand
1 Part Quicklime
1 Part Fire Clay
1 Part Portland Cement

How to Make High-Temperature Mortar

How to Build a Pizza Oven

No returns / No refunds.  If the product arrives damaged, do not accept package - and pictures must be submitted w/ claim.  Fireclay ships on Fridays &/or Mondays only.