The Front opening is 16" x 3 1/2"

The two end ports openings are 3 3/4" x 2"

Interior dimensions are 18" L x 7 1/8" W x 3 1/2" H

Exterior Dimensions are 18 1/2" 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.