Deck Material Estimator

Estimate how many deck boards and screws you need before you buy materials for your project.

The calculator is built to give you a quick starting point for planning material quantities before you start building. Once you have a solid estimate early, it becomes much easier to compare board sizes, plan purchases, and avoid unnecessary waste.

The assumptions shown with the calculator should always be checked against your actual project, local building practices, and the product specifications for the deck boards and fasteners you plan to use.

If you want more context before you build, explore the supporting guides and planning articles below. Also check out the frequently asked questions about deck building.

Estimate deck boards

To estimate deck boards, you mainly need the size of your deck and the width of the boards you are considering. The calculator turns that into a practical material estimate you can use as a planning baseline. Read more

Estimate screws

Screw requirements depend on board width, joist spacing, and fastening method. A quick screw estimate helps you avoid underbuying and gives you a better sense of total materials. Read more

Plan the project more clearly

A reliable material estimate makes the rest of the project easier. It helps with budgeting, comparing material options, and deciding what to buy before work begins. Read more