Making Stair Treads Deeper

Chisel off the nosing of the existing treads so that each tread does not protrude beyond the riser board.

Measure the existing treads and cut new boards for each tread. Include the nosing of the tread in your measurement. The nosing is not a separate piece of wood; it is the short extension of the tread that hangs over the riser. The nosing section of the tread should extend at least 1 to 1 1/2 inches over the riser.

Spread construction adhesive evenly over the first stair tread.

Place the new stair tread on the first tread. Drill three, evenly spaced pilot holes through the new tread and into the existing tread on the sides of the tread, approximately 1 inch away from the sides of the tread.

Hammer 2-inch nails into the holes. Use the nail punch to tap the head of the nail slightly below the surface of the wood.

Continue adding new treads to the existing treads until all the treads are covered.

Measure the nosing depth of the new treads. If the depth is greater than 1 1/2 inches, you must add new risers to the staircase.

Measure the height and width of the existing risers. Cut new boards for each new riser. Consider the thickness of the board you will need. For example, if the stair nosing protrudes to a thickness of 1 3/4 inches, use thin, 1/4-inch plywood or boards for the new risers.

Spread construction glue evenly over the first riser.

Place the new stair riser board on the first riser. Drill three, evenly spaced pilot holes through the new riser and into the existing riser on the sides of the riser, approximately 1 inch away from the sides of the riser.

Hammer 2-inch nails into the holes. Use the nail punch to tap the head of the nail slightly below the surface of the wood.

Continue adding new risers to the existing risers until all the risers are covered.