furring strip

The shocking thing is that the flue gases had escaped from the chimney and could have set the wood framing near the chimney and the wood furring strips on fire.

If flue gases had escaped from the chimney, they could have set the wood framing near the chimney and the wood furring strips on fire.

The pine paneling was gone from the walls leaving just the furring strips.

You’d have to cut back any existing furring strips that are on the concrete block so the wide strips of plywood would fit tightly against the concrete block.

Place them on 1×2 furring strips so that the bottom rails will be flush with the storage openings, and clamp them back together.