Deck & Lumber Calculators

These tools turn deck dimensions into a lumber-yard list — boards, screws, stringers, and gallons — using trade conventions and IRC 2021 code limits, each cited on its page.

Board Feet Board feet and cost from nominal dimensions — the way the lumber trade tallies. Deck Boards Board and screw counts by width, gap, stock length, and joist spacing. Deck Stain Gallons for one or two coats, railing allowance included. Stairs Rise, run, stringers, and tread boards — checked against IRC 2021 limits. Wood Fence Posts, rails, and pickets for a privacy fence — concrete link pre-filled. Wall Framing Studs, plates, and sheathing at 16" or 24" on center per IRC R602.3.

More on AllUnits

Concrete for the footings: Concrete & Masonry calculators. Lawn and yard work: Landscaping calculators. One-off conversions: the Unit Reference converters for length and area. Every factor these tools use is cited on Sources & Methods.