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How Do I Board up Windows Before a Big Storm?

Last updated October 25, 2026

The short answer

Gather Your Materials Ahead of Time

Essential materials include 5/8-inch thick exterior-grade plywood, enough to cover all your windows. You will also need long wood screws, a drill with a screwdriver bit, a tape measure, and a saw for cutting. A pencil for marking cuts and a ladder for reaching second-story windows are also necessary. Having these items ready before a storm watch is issued allows you to work without last-minute stress.

Do not use thin materials like particle board or interior paneling, as they can shatter. Exterior-grade plywood is specifically treated to withstand moisture. The screws you choose should be long enough to penetrate the window frame and into the wall stud behind it for a secure hold. Store your cut boards and hardware in a dry, accessible place so they are ready to install.

Measure and Cut the Plywood Correctly

Accurate measurements are critical. Measure the height and width of the entire window opening, including the frame. Add a one-inch overlap on all sides to ensure the plywood fully covers the frame and seals the edges. Mark these dimensions clearly on your plywood sheet before making any cuts. A circular saw or table saw will give you the cleanest, straightest edges.

Install the Boards Securely

Begin installation when a storm warning is issued, not a watch. Have a helper stabilize the ladder and hold the board in place. Position the plywood so it completely covers the window frame. Start drilling your screws at the top corners to hold the board, then work your way around the perimeter. Drive screws every 12 to 16 inches for a solid attachment.

Focus on securing the board to the structural parts of your home. The goal is to anchor into the window frame or the wall studs around it. Avoid screwing only into siding or trim, as these can tear away. Tighten the screws firmly so the board is flush against the wall, but do not over-tighten and strip the wood. A secure board should not rattle or shift in the wind.

Safety Precautions During the Process

Your personal safety is the top priority. Never work on a ladder in high winds or rain. Wear sturdy shoes, gloves, and eye protection at all times. If you must board up second-floor windows, ensure your ladder is on firm, level ground and have someone spot you. Do not attempt this job if you are uncomfortable with heights or power tools.

Keep children and pets indoors and away from the work area. Flying debris from cutting or falling tools can cause injury. Be mindful of overhead power lines when moving long sheets of plywood. If a storm is approaching faster than expected, prioritize your safety over finishing the job. It is better to take shelter in a secure interior room than to risk being caught outside.

If Water Damage Occurs Anyway

Despite your best efforts, wind-driven rain can sometimes find a way in. If water enters your home, act quickly to minimize damage. Your first steps should focus on safety, ensure electrical hazards are addressed, and stopping the water flow if possible. Then, begin removing water and promoting drying to prevent secondary damage like mold and structural rot.

For significant flooding or water trapped in walls, professional help is often needed. Local water damage pros have industrial equipment to dry structures completely. They can also assess hidden damage you might miss. If you live in Katy, the humid subtropical climate with hot humid summers and a Gulf hurricane season means wet materials can develop mold very quickly, making prompt action essential.

  • Remove standing water with a pump or wet-dry vacuum.
  • Move valuables and furniture to a dry area if safe to do so.
  • Increase airflow by opening windows and using fans once the storm passes.
  • Pull up saturated carpets and padding to prevent mold growth.
  • Document all damage with photos or video for an insurance claim.
  • Contact local water damage pros for a thorough inspection and drying.

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Frequently asked questions

What type of screws should I use for boarding up windows?

Use long, coarse-thread wood screws, at least three inches in length. They must be long enough to go through the plywood and securely bite into the wooden window frame or wall stud behind it. Deck screws or lag screws are good choices. Avoid short screws or nails, as high winds can pull them out.

Can I use materials other than plywood to board up windows?

Plywood is the recommended material for its strength and availability. Other options like metal storm panels or permanent hurricane shutters are more effective but require professional installation. Do not use brittle materials like OSB, plastic, or glass. These can crack under pressure from flying debris and fail to protect your home.

Should I file an insurance claim for storm water damage?

That depends on your policy's deductible and the extent of the damage. Document everything with photos and a detailed list of damaged items before starting cleanup. Contact your insurance company to start the claims process. Policies vary, and your insurer decides what is covered. Professional repair documentation can support your claim.

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