Step 1: Cut an Opening

Construct a box out of 2x4s (Image 1) and secure it in the chute location with a framing nailer. Be sure to check the local building codes before undertaking a project like this.

Pry up the floorboards (Image 1) and cut out an opening with a reciprocating saw (Image 2).

Remove any ductwork that is in the way (Image 3).

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    Image 1

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    Image 2

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    Image 3

Step 2: Secure Drywall

Work your way down by framing in the chute on the first floor, then in the basement.

Cut drywall to size and secure it with drywall screws. In tight places, use a wood tapping block to work pieces into place.

Step 3: Cut the Opening in the Basement

In the basement, determine the location of the opening and mark the four corners. Drill holes as reference points on the other side (Image 1).

Draw lines from hole to hole, then cut an opening with a reciprocating saw (Image 2).

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    Image 1

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    Image 2