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Best way to board up windows before a blizzard surge?

May 8, 2026

Quick Answer

Use plywood panels that are at least 3/4 inch thick and cut to fit the window frame exactly, secured with 3-inch nails or screws, and caulk the edges for a watertight seal.

Preparing the Plywood Panels

Before boarding up windows, ensure you have the necessary materials, including plywood panels, 3-inch nails or screws, a drill, a hammer, and caulk. Cut the plywood panels to fit the window frame exactly, leaving no gaps or overhangs. For smaller windows, use 2x4 lumber to create a frame around the window, then attach the plywood panel to the frame.

Securing the Plywood Panels

Use 3-inch nails or screws to secure the plywood panels to the window frame, starting from the bottom and working your way up. Space the nails or screws 6-8 inches apart, making sure they are not too close to the edge of the plywood. This will prevent the panels from splitting or cracking under the pressure of the wind and surge.

Final Checks and Preparations

Once the plywood panels are in place, inspect the boards for any gaps or loose edges. Use caulk to seal any gaps and ensure the edges are secure. Remove any furniture or items from the windowsills and keep them away from the boarded-up windows. Finally, check the weather forecast again to ensure you have enough time to complete the preparations before the storm hits.

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