What every result keeps visible
- Formula ID, version, internal QA status and planning boundary.
- Inputs, assumptions, allowance and purchase-rounding effect.
- Editable estimate costs that remain distinct from material quantity.
15 tested tools in lumber & framing
Lumber & framing calculators
Transparent preliminary counts for board feet, stairs, deck boards, studs, joists, rafters and sheet goods. Confirm the framing design separately.
Formula-first tool library
Choose the right lumber & framing calculator.
Board feet calculator
Lumber board-foot quantity from stated thickness, width, length, piece count and allowance.
Open calculatorWall stud calculator
Preliminary wall-stud count from wall run, spacing, openings and a visible allowance.
Open calculatorFloor joist calculator
Preliminary joist count and total linear footage from framing run, span and stated spacing.
Open calculatorRafter calculator
Preliminary paired-rafter count and rafter length from roof plan dimensions, pitch and spacing.
Open calculatorLinear lumber calculator
Whole stock-board count from total linear run, selected stock length and visible allowance.
Open calculatorPlywood calculator
Whole sheet-goods quantity from rectangular coverage, selected sheet coverage and allowance.
Open calculatorStair calculator
Preliminary riser count, tread run and stringer length from total rise and target step dimensions.
Open calculatorDeck board calculator
Deck-board count and linear footage from deck size, board width, gap and stock length.
Open calculatorBaseboard calculator
Stock-length sticks of baseboard from room perimeter after door deductions, with a visible cutting allowance.
Open calculatorCrown molding calculator
Stock-length sticks of crown from the full room perimeter, with extra waste for coped inside corners.
Open calculatorWheelchair ramp calculator
Ramp run length and slope percent from total rise and a stated slope ratio. Planning geometry only — not an ADA approval.
Open calculatorBaluster spacing calculator
Baluster count and clear gap for a run between posts, using a maximum opening you can set. Default 4 in is the common sphere-rule planning figure, not a code stamp.
Open calculatorDeck stain calculator
Whole gallons of deck stain from deck area, coats and the coverage printed on the can.
Open calculatorShiplap calculator
Shiplap board count from wall width, height and the exposed face after overlap, rounded to whole sticks of the stock length you buy.
Open calculatorWainscoting calculator
Stock-length sticks of wainscot from room perimeter after door deductions, with the chair-rail height kept visible for area.
Open calculatorCommon question
Can these tools size framing members?
These are transparent planning aids, not engineering, code, installation or final supplier specifications. Confirm actual job requirements before construction.