Outdoor Projects Calculators
Plan fence, deck and stair geometry with clear limits and assumptions.
Start with the right measurements
Separate material quantities and reference geometry from structural design. Verify the full plan, connections and local requirements before building.
Measure the fence path
Draw the project before entering dimensions. For a fence, trace one ordered open path and split it into straight sections at corners. Record gate openings as their own sections. Enter post-center to post-center spans, checking the hardware and clear-opening information supplied for the selected gate system. A closed loop is outside the supported model.
Fence materials and post holes
The Fence Calculator shares an endpoint between adjacent rows and counts infill bays separately from gates. Panels and pickets use different purchase branches. Rail output in picket mode means bay-length pieces, rather than stock boards or approved connection lengths. Optional post-hole concrete uses your hole diameter, actual filled height and labeled bag yield; it does not choose footing dimensions.
Deck boards and cutting assumptions
For decking, decide which direction the complete board rows will run. Enter actual board face width, gap, usable stock length and saw kerf from the proposed product and cutting process. The Deck Calculator supports a complete row cut from one stock board. It does not arrange end joints, reuse ripped widths or create a cutting layout.
Joist layout and face screws
Optional joist positions and face screws are layout quantities only. Joist spacing must come from a separately checked plan. These counts do not size members, establish spans or approve fastenings. Keep framing, connections, beams, footings, guards and other uncounted materials on the project checklist rather than assuming they are included in a decking estimate.
Stair geometry and reference lines
For straight stairs, measure from the finished lower floor to the finished upper landing. The upper landing supplies the last walking surface, so there is one fewer tread than risers. The Stair Calculator reports uniform step geometry and two explicitly defined reference lines. Neither reference is a physical stringer cut length. Verify the complete design, local requirements, bearing and attachment details before cutting or building.