The Front opening is 10 1/2" x 3 1/2"

The front door stock port opening is 4" x 1 1/2"

The rear stock port opening is 3" x 1 3/4"

Interior dimensions are 11 1/2" L x 8" W x 3 1/2" H

Exterior Dimensions are 14" L x 10 " W x 9" high (18" H to top of burners)

Lightweight Ceramic Board in the walls and ceiling.

Ceramic Fiber in the door.

Dense Ceramic floor.

Sherwood 0-30 psi regulator kit with hose and gauge included.

These, as all Diamondback Ironworks Forges, reach welding heat easily.