Equalized panel layouts for beadboard paneling, raised-panel, picture-frame molding, and chair rail + baseboard. Enter your wall, get the number of full panels, the equalized panel width, every stile position, a to-scale diagram, and a material shopping list — free, private, no signup.
Scope note: this tool covers beadboard, raised-panel, picture-frame molding, and chair rail + baseboard layouts. Vertical board-and-batten spacing uses different math (even on-center batten spacing) and has its own tool: board-and-batten layout calculator.
Your wall
e.g. 144 = 12 ft
Space from corner to first stile
Panels equalize at or below this
Width of each vertical stile
Floor to top of chair rail
Default 6″
Width of rail molding
Doors / windows — deducted from usable width
Layout results
Stile positions (from left corner)
Stile #
Left edge
Center
Shopping list (includes 10% waste)
Item
Quantity
Linear-foot figures are per wall. Measure each wall separately and repeat for the room.
Worked examples
All four recomputed from the layout formula — no made-up numbers.
Wall 60″, margins 2″, target 30″. Usable = 56″; n = ceil((56 − 3) ÷ 33) = 2 panels at 23.5″ each — the tool never produces a single 50″ stretched panel when two balanced panels fit.
Frequently asked questions
How do you calculate equalized wainscoting panel widths?
Measure the wall width, subtract the edge margins on both sides and any door or window openings, then subtract the total width of all vertical stiles. Divide the remaining space by the panel count: equalized panel width = (usable width − (panels+1) × stile width) ÷ panels. Choose the panel count by rounding usable width ÷ target panel width so every panel ends up at or just below your target width, e.g. a 144″ wall with 6″ margins and 3″ stiles gives 4 panels at exactly 29.25″ (29¼″) each.
What is a good target panel width for wainscoting?
Most carpenters aim for 24″–36″ per panel for beadboard, raised-panel, and picture-frame styles; narrower panels (18″–24″) suit short walls, and panels over 42″ start to look stretched. This calculator defaults to 30″, then equalizes every panel to the same width, so enter any target and the tool re-balances the layout automatically.
How far apart should wainscoting stiles be placed?
Stiles are not placed on a fixed spacing — they sit at the edges of each equalized panel, so on-center spacing equals the equalized panel width plus one stile width. For the worked example above that is 29.25″ + 3″ = 32.25″ on center, with stile centers measured from the left corner listed in the results table and drawn on the diagram.
How do you handle doors and windows in a wainscoting layout?
Deduct the full width of each opening from the wall before dividing the space into panels. This calculator subtracts the sum of all opening widths from the usable width (an honest simplification: in the room, place the openings first, then snap the nearest stile to each side of the casing and re-divide that run). Never let a stile or panel frame land on a door or window casing.
How much material do I need for picture-frame wainscoting?
Picture-frame molding stock equals panels × 2 × (equalized panel width + inner height) in linear feet, where inner height is the wainscot height minus baseboard and chair rail. For the 12-ft wall example (4 panels, 29.25″ wide, 26.5″ inner height) that is 37.17 LF of frame molding, plus one length of chair rail and one of baseboard per wall — the shopping list on this page computes all of this, plus 10% waste.
Beadboard vs raised-panel vs picture-frame — which style should I choose?
Beadboard is the cheapest and fastest (sheets + rail + base), picture-frame molding is mid-cost and the most forgiving for beginners, and raised-panel costs the most but looks the most formal. All three use the same equalized-panel math; this calculator covers beadboard paneling, raised-panel, picture-frame molding, and chair rail + baseboard in one place. Vertical board-and-batten layouts use different spacing math and are covered by our separate board-and-batten layout calculator.
Should wainscoting panels be perfectly equal, or can the end panels be narrower?
Equal panels look noticeably better — a narrow “runt” panel at the end is the classic DIY giveaway. The standard pro method (and this calculator's) is to divide the wall into an integer number of equal panels with matching edge margins, so every panel is identical. If an opening breaks the wall, equalize each wall run separately.
How high should wainscoting be?
The traditional chair-rail height is 32″–36″ from the floor (about one-third of an 8-ft wall), including baseboard and rail. This calculator defaults to 36″ total wainscot height, subtracts your baseboard and chair-rail heights to get the inner frame height, and sizes all vertical stile stock from that — enter your actual rail height if you are running full-height paneling.
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