Wainscoting Calculator

Total stile width = stile_width × (panels + 1). Panel width = (wall_width - total_stile_width) / panels. Example: 144" wall, 4 panels, 2.5" stiles: (144 - 2.5×5) / 4 = 131.5 / 4 = 32.875" per panel.

Traditional wainscoting is 32–36" — roughly one-third of wall height. Dining rooms often use 38–42". For 9-foot ceilings, 36" is proportional. Chair rail height sits at the top of the wainscoting, typically 32–36" from the floor.

Standard stiles are 2–3.5 inches wide. Wider stiles (3–4") suit traditional styles. Narrower stiles (1.5–2") work for contemporary looks. All stiles should be the same width across the wall.

Board and batten uses wide vertical planks with narrow strips (battens) covering the seams. There are no horizontal rails between panels. The batten width is typically 1.5–2" and the board spacing is calculated similarly to stile spacing.

Use an even number of panels for full symmetry. Start your layout from the center of the wall and work outward. This way any partial panels at the ends are equal width. Adjust panel count until panel width is between 12–20" for balanced proportions.

Shadow box wainscoting applies rectangular trim frames flat against the wall surface, creating a 3D shadow effect without raised or recessed center panels. The frames are typically made from 1×4 or 1×6 lumber applied over painted drywall.