24 HTML + PDF references
Construction Charts
BuildMath publishes 24 full reference tables for roof pitch, slope factors, fractions, lumber, fasteners, stairs, joists, rafters, and material conversions. Each table is present in HTML for citation and accessibility, includes a printable PDF twin, and links back to the calculator that applies the values.
HTML + Letter + A4
Inch Fraction to Decimal Chart
A two-way decimal to fraction chart covering sixty-fourths of an inch, decimal inches, millimetres, and percentage.
HTML + Letter + A4
Slope Factor Chart
Roof pitch multiplier chart for converting plan area or horizontal run into sloped length.
HTML + Letter + A4
Board Footage Chart
Board foot chart for common thicknesses, widths, lengths, and quantities.
HTML + Letter + A4
Roof Pitch Angle Chart
Roof pitch to degrees chart with slope factor and rafter length for a 12-inch run.
HTML + Letter + A4
Lineal Feet to Board Feet Chart
Lineal-foot conversion table for common hardwood thicknesses and widths.
HTML + Letter + A4
Log Scale Chart
Example comparison table for Doyle, Scribner, and International quarter-inch log rules.
HTML + Letter + A4
Sixteenths of an Inch Chart
Tape-measure sixteenths converted to decimals and millimetres.
HTML + Letter + A4
Stair Rise and Run Code Chart
Planning summary of common IRC stair dimensions with direct source references.
HTML + Letter + A4
Stair Stringer Layout Template Chart
Printable rise-and-run layout examples for common stair proportions.
HTML + Letter + A4
Rafter Span Chart
Conservative example rafter spans for preliminary comparison before an AWC table lookup.
HTML + Letter + A4
Floor Joist Span Chart
Conservative example floor joist spans for preliminary comparison before an AWC/IRC lookup.
HTML + Letter + A4
Ceiling Joist Span Chart
Example ceiling joist spans for preliminary layout comparison.
HTML + Letter + A4
Header Size Chart
Header lookup worksheet that keeps opening width, supported width, floors, and load path together.
HTML + Letter + A4
Lumber Actual Size Chart
Nominal lumber sizes with common dressed actual dimensions.
HTML + Letter + A4
Plywood Thickness Chart
Common plywood panel labels, decimal thicknesses, and metric equivalents.
HTML + Letter + A4
Nail Size Chart
Common penny nail sizes and approximate lengths.
HTML + Letter + A4
Screw Size Chart
Common screw gauge diameters and pilot-hole planning ranges.
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Rebar Size Chart
US reinforcing bar numbers, diameters, areas, and weights.
HTML + Letter + A4
Drill and Tap Chart
Selected UNC thread sizes and common tap drill sizes.
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Deck Joist Span Chart
Conservative example deck joist spans for preliminary comparison.
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Roofing Squares Conversion Chart
Square-foot and square-metre roof areas converted to roofing squares.
HTML + Letter + A4
Concrete Bags per Yard Chart
Approximate bag counts per cubic yard for common premix bag sizes.
HTML + Letter + A4
Baluster Spacing Chart
Equal-gap examples for common openings, baluster widths, and maximum gaps.
HTML + Letter + A4
Miter Angle Chart
Equal miter cuts for common corner and polygon angles.