Raked wall layout calculator

For setting out the geometry of a wall beneath a straight rake. Both modes describe the same wall using different measurements available on site.

Wall run and end geometry

Horizontal bottom-plate length, starting height, and either opposite height or pitch angle.

Plates and stud spacing

Bottom/top plate thicknesses and spacing measured along the bottom plate.

Two Heights derives pitch from the height difference divided by horizontal run. Pitch mode derives the far height from run × tan(angle).

• Pitch or far-end height, sloping top-plate length, and a numbered setting-out table.
• Bottom-plate and top-plate positions plus the app’s stud-length column; check the actual joint geometry before making a cut list.

Top-line geometry for a wall rising by 1 m over a 4 m horizontal run. The example does not specify stud cuts.

Angle = atan((far height − start height)/run). Top length = √(run² + height difference²). Pitch mode with the unrounded angle returns the same far height. The last interval is shorter when the chosen spacing does not divide the run.

Metric and imperial lengths are supported; pitch is entered in degrees. Top-plate positions are distances along the slope, while bottom positions are horizontal. Do not interchange the two columns.

Treat the diagram as a geometric reference. Plate thickness, bearing details, cut angles and how each stud meets the top plate must be resolved in the working drawing. The example above verifies the wall envelope only.

Which mode should I start with?

Use two heights when both ends have been measured. Use pitch when the slope is specified and you know the starting height.

Why is the top-plate mark further along?

It is measured along a longer sloping line, not as a horizontal projection.