Room area, stairs, roof pitch, and squareness checks.
Calculate posts, pickets, rails, and post length for a wood or composite fence, with gate deduction and spacing between posts.
Open →Common rafter length from building span and roof pitch, with the ridge board deduction, overhang tail, roof angle and the plumb and seat cut angles.
Open →Work out ramp run and total length from the rise at a 1:12, 1:15 or 1:20 slope, including the landings ADA requires and whether handrails are needed.
Open →Calculate roof pitch from rise and run, degrees, or ratio. Get pitch in degrees, percent slope, ratio, and rafter length.
Open →Calculate the floor area of rectangular or L-shaped rooms in square metres, with optional deductions for windows and door openings.
Open →Check if a corner is square using the 3-4-5 method. Enter two sides and the measured diagonal to see the exact expected value and deviation.
Open →Calculate the number of steps, exact riser height, tread depth, and incline angle for a staircase between two floors. Includes code-compliance check.
Open →Find the height to mount a TV so the centre of the screen sits at eye level, with the bottom and top edges, screen size and the viewing distance to aim for.
Open →Calculate total wall area, then subtract windows and doors to get the net paintable or wallpaperable area of the room.
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