Are these safe for food? In a grill?

you might use them in the construction of the grill, like if you're building your own yakitori grill, but I dont think you allow the food to touch or cook on the bricks

Is there any firebrick and mortar I can buy that can tolerate 3,800°F-6,000°F?

They are industrial grade firebrick these will not work for that application

measurement of the bricks. 9X4&1/2?

Yes, they measure 9" by 4.5" by 1.25". They are identical to the original fire bricks in my Vermont Castings Defiant wood stove. My stove is 9 years old.

What is the best way to join these together?

Your best bet to join these bricks would be to use a refractory mortar, such as the Rutland Fireplace Mortar. If outdoors, you will need to use the Rutland Castable Refractory Cement.

Rutland Products Fire Brick | Desertcart Macau

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MOP$3956

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Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate your fire’s performance with bricks that mean business!

DISTINCTIVE TAN COLOR - No pink hues here – a mark of superior curing and quality control.
PROUDLY MADE IN THE USA - Crafted domestically with rigorous quality standards for peace of mind.
DURABILITY YOU CAN TRUST - Non-brittle, dense fire bricks that outlast standard stock bricks.
PRECISION ENGINEERED FIT - Consistent sizing with minimal color variation ensures seamless installation.
UNMATCHED HEAT RESISTANCE - Certified to withstand extreme 2700°F (1480°C) – built for serious heat.

Rutland Products Fire Bricks are premium, tan-colored fire bricks rated for extreme heat up to 2700°F (1480°C). Manufactured in the USA with strict quality control, these dense, non-brittle bricks offer precise sizing and superior durability, making them ideal for woodstoves, forges, and high-temperature applications.

Specifications

ASIN	B000UEYZ4S
Best Sellers Rank	#1,829,259 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #70 in Firing Accessories
Brand	RUTLAND PRODUCTS
Customer Reviews	4.7 out of 5 stars 2,751 Reviews
Enclosure Material	Clay" or "Ceramic
Global Trade Identification Number	00022624006046
Included Components	6 pk
Item Form	Tan Fire Bricks
Item Type Name	Rutland Products Fire Brick
Item Weight	10.93 kg
Manufacturer	Rutland Products
Manufacturer Part Number	604
Manufacturer Warranty Description	This product will be free from defects in material and manufacture for a period of eighteen (18) months from date of manufacture. Rutland fire clay company makes no other warranties including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. User is responsible for determining whether the rutland fire clay company product is fit for a particular purp…
Material	Clay" or "Ceramic
Model number	604
Net Quantity	6.0 Count
Scent	Unscented
UPC	012685000053 022624006046
Unit Count	6.0 Count

Reviews

M**R

Great product, better than original bricks my Blaze King came with

These firebricks are denser and better than the stock firebricks that came with my woodstove. Exact match for my Blaze King Princess. Great purchase

20.01.2023

R**1

Excellent in the forge

Been using them in the bottom of my forge as well as using as doors to help trap heat. They have held up really well. Only have had one split in the year or so that I have been using them.

3.07.2026

J**E

Easy installation

Was super easy to install and cheaper then anywhere else

19.04.2020

J**E

Performs as advertised

This product has performed exactly as expected, making my homemade coal forge a success.

1.09.2020

G**F

Osborn 2400 firebricks replacements

Perfect size firebricks for an Osburn 2400 fireplace

26.01.2026

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MOP$3956

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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