What's inside
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A slatted-top bathroom stool is a compact project, but it has to cope with wet floors, damp air and an occasional sideways bump. This plan makes a sturdy stool about 18 inches tall, with a 14-by-12-inch top. The slats let water drain, while a simple apron and four stretchers keep the legs from wobbling.
Contents
Dimensions and design
The finished stool is 18 inches high, 14 inches wide and 12 inches deep. That height works as a seat for many adults and as a low stand for reaching a shelf; adjust it to suit the user, but avoid making a narrow stool unusually tall. Cut the legs from 2-by-2 stock, which measures about 1½ inches square. The top uses four 1-by-3 slats, ripped or selected to finish about 2½ inches wide, with ⅜-inch gaps between them.
The apron rails sit between the legs just below the top. Two long rails run across the 14-inch dimension and two shorter rails across the 12-inch dimension. With 1½-inch-square legs and ¾-inch-thick rails, cut the long rails 11 inches and the short rails 9 inches; these lengths fit inside the leg faces. The legs finish at 17¼ inches, and the top slats add ¾ inch for an 18-inch stool. Four stretchers near the bottom provide extra resistance to racking.
Materials and tools
Use kiln-dried cedar, teak or another durable, stable wood. Cedar is light and relatively easy to find, but dents more readily than hardwood. Teak costs more and is naturally suited to damp conditions; it still benefits from sensible drying and cleaning. Avoid construction lumber that is wet, twisted or full of large knots. A straight-grained hardwood can also work if every surface and end grain is sealed.
Gather 2-by-2 stock for the legs, 1-by-3 stock for the slats, and 1-by-3 stock for rails and stretchers. You will also need waterproof exterior-rated wood glue, corrosion-resistant screws, a drill, saw, square, clamps, sandpaper and a finish rated for exterior or marine use. A waterproof wood glue is a sensible choice for joints that may see dampness, though glue alone is not a substitute for sound joinery.
Choose your joints
For a first stool, pocket screws make the apron assembly straightforward. They are quick to install and easy to adjust, but the holes should face inward and the rails still need accurate clamping. Dowels or mortise-and-tenon joints take more setup and can make a cleaner, stronger frame when fitted well. The comparison below assumes careful assembly and appropriate glue.
| Joint method | Best for | Trade-off |
|---|---|---|
| Pocket screws | Beginners and quick builds | Fast, but visible if holes face outward; can loosen if the wood is damp or the joint is poorly clamped |
| Dowels | Neat, moderately equipped builds | Strong when holes align; misaligned holes can pull the frame out of square |
| Mortise and tenon | Experienced woodworkers | Durable and traditional, but slower to cut accurately |
If you own a pocket-hole jig, use it. If not, a simple dowel jig is a reasonable purchase for repeated projects, but for one stool, carefully drilled dowels or screws driven through the legs may cost less. Whichever method you choose, make a dry-fit test before applying glue.
Cut and assemble the frame
Cut four legs to 17¼ inches. Cut the apron rails to the lengths above, then cut four stretchers to fit between the legs near the floor: two long stretchers at 11 inches and two short ones at 9 inches. Measure the actual stock before cutting, since nominal lumber dimensions vary. Sand the parts to 120 grit while they are still easy to handle.
Mark the apron position about 1 inch below the tops of the legs. Assemble the two long sides first, keeping each rail flush with the inside faces of its legs. Add the short rails between those assemblies, then fit the stretchers about 4 inches above the bottom of the legs. Clamp the frame and check both diagonals; if they differ, nudge the frame until they match. A square frame sits flat. If one leg rocks, trim it only after the glue cures and the stool is on a level surface.
Fit the slatted top
Cut four slats 14 inches long. Lay them across the frame with even ⅜-inch gaps and equal overhang at each end. A scrap spacer makes the gaps consistent. Drill pilot holes to reduce splitting, then fasten each slat to both long apron rails with corrosion-resistant screws. Predrill especially carefully near the ends of cedar, which can split easily. Use screws long enough to bite securely into the rails without breaking through the top.
Ease the edges with sandpaper so there are no sharp corners, and round the top edges slightly to reduce splintering. Check that every slat is level and firmly attached. A loose slat can flex under weight; a wide gap can catch toes or small objects. If the stool is intended for a child, keep the gaps narrow and supervise its use.
Sand and protect the wood
Sand the assembled stool to 150 or 180 grit. Do not polish bathroom furniture to an extremely smooth, glossy surface: it can become slippery when wet. Apply a water-resistant exterior or marine finish according to its label, paying particular attention to end grain, the underside and the slat edges. An exterior-rated wood finish is generally a better fit than ordinary interior furniture wax. No finish makes wood waterproof, and even durable coatings need maintenance.
Let the finish cure fully before bringing the stool into the bathroom. Put it on a dry, level floor and add non-slip feet if the floor is smooth tile. Check the feet periodically; adhesive pads can loosen in damp conditions. After bathing, wipe off standing water and allow the stool to dry with airflow around and beneath it.
Common problems and maintenance
The most common failure is a loose frame, usually caused by inaccurate cuts, poor clamping or screws driven too close to an edge. A second is cupped or split slats, often from using damp stock or sealing only the visible top. Choose dry, straight boards and coat all faces. If the stool begins to wobble, stop using it until you check the joints and floor contact; tightening a screw may help, but a cracked rail needs repair rather than another coat of finish.
Inspect the stool every few months for raised grain, loose fasteners and worn finish. Sand a rough patch lightly and recoat before water can soak in. With dry lumber, sound joints and routine care, this is a practical bathroom project that can be built with basic tools and maintained without elaborate products.