Wainscoting Calculator
Forty feet of wall at a 3 foot panel, one 3 by 3 window, and one 3 foot door is 102.00 ft², 4 sheets of an example 4×8, and 37.00 ft of chair rail and baseboard.
Last updated . Chair rail follows the door deduction. Wall length starts at 40 ft. Panel height starts at 3 ft.
A wainscoting calculator for the panel area, the sheet count, the chair rail, and the baseboard. Add the wall lengths first. Windows and doors come off the panel. Only doors come off the two linear runs.
Full-height sheets in the same room: drywall calculator. Paint above the chair rail: paint calculator.
Wainscot panels and rails
Add every wall, then type that total. A window removes panel area only. A door removes panel area for the full panel height and also breaks the chair rail and the baseboard. 4 by 8 is an example sheet face so the sheet line can be checked. Offcuts are not a second count.
Results
Area, sheets, and the two runs
Gross panel is the total wall length times the panel height. Each window subtracts its width times the height that sits inside the panel. Each door subtracts its width times the full panel height, because the door opening starts at the floor. Net area for the default is 40 × 3 − 3 × 3 − 3 × 3 = 102 square feet.
Sheets are that net area divided by the sheet face you type, rounded up. An example 4 by 8 is 32 square feet, and 102 ÷ 32 is 3.1875, so the count is 4. Leftover pieces are not estimated again. Chair rail and baseboard are each the wall length minus the door widths: 40 − 3 = 37 feet. A window does not cut them.
Worked wall
| Line | Result |
|---|---|
| Gross panel | 120.00 ft² |
| Window deduction | 9.00 ft² |
| Door deduction | 9.00 ft² |
| Panel area | 102.00 ft² · 9.48 m² |
| Sheets, 4×8 example | 4 |
| Chair rail | 37.00 ft · 11.28 m |
| Baseboard | 37.00 ft · 11.28 m |
Wainscoting questions
What does the 40 foot wall return?
Leave wall length 40 ft, panel height 3 ft, one window 3 ft by 3 ft, one door 3 ft wide, and the example sheet at 4 ft by 8 ft. Panel area reads 102.00 ft² · 9.48 m². Sheets reads 4. Chair rail reads 37.00 ft · 11.28 m. Baseboard reads 37.00 ft · 11.28 m.
What if the window count is zero?
Set window count to 0 and leave the door. Panel area reads 111.00 ft² · 10.31 m². Sheets stays 4. Chair rail and baseboard stay 37.00 ft · 11.28 m. The door still removes 3 by 3 feet of panel and 3 feet of each linear run.
What if there is no window and no door?
Set window count and door count to 0. The panel line reads 120.00 ft² · 11.15 m². Sheets stays 4. Chair rail reads 40.00 ft · 12.19 m. Baseboard reads 40.00 ft · 12.19 m.
How many sheets is a 4 by 10 face?
Leave the 40 ft wall, the 3 ft height, the window, and the door. Set sheet length to 10 ft and leave sheet width at 4 ft. Panel area stays 102.00 ft² · 9.48 m². Sheets reads 3. The face is 40 square feet, and 102 ÷ 40 rounds up to 3.
Why does the door change the area and the rail?
A door cuts the wainscot from the floor to the top of the panel, so the area loss is door width times panel height. The same door also ends the chair rail and the baseboard. A window removes area only. It does not shorten those two runs.
What if the window is taller than the panel?
Set window height to 4 ft while panel height stays 3 ft and window count stays 1. Every result reads —. The note reads: That window is taller than the panel, so it is not only a hole in the wainscot.
What if the sheet size is cleared?
Clear sheet width or sheet length. Panel area still reads 102.00 ft² · 9.48 m². Chair rail and baseboard still read 37.00 ft · 11.28 m. Sheets reads Enter a sheet size. The 4 by 8 is an example face, not a brand yield.