What's inside
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A porch bench earns its keep when it does more than provide a place to sit. This design includes two removable slatted trays under the seat: one for muddy shoes and boots, and one for cleaner footwear or porch gear. The trays lift out for shaking, sweeping, or rinsing, while the open slats let water drain instead of pooling against the wood.
The bench is sized at approximately 42 inches wide, 18 inches deep, and 20 inches high. That gives one adult a comfortable seat without making the porch feel crowded. It is a good intermediate woodworking project, but a careful beginner can build it with straight cuts, pocket screws, and patience during sanding.
Contents
Materials and tools
Use cedar, cypress, or pressure-treated lumber if the bench will sit fully outdoors. Cedar is easier to work and looks better with a clear finish, but it dents more easily and costs more. For a covered porch, exterior-rated pine can work if every surface is sealed, including end grain.
| Material | Approximate quantity | Best use |
|---|---|---|
| 1×4 boards | About 24 linear feet | Seat slats, tray slats, and cleats |
| 2×2 boards | About 18 linear feet | Legs, rails, and tray supports |
| 1×2 boards | About 12 linear feet | Tray frames and seat apron |
| Exterior screws | 1 1/4-inch and 2 1/2-inch | Assembly |
You will also need a tape measure, square, drill, countersink bit, clamps, and a saw. A miter saw speeds up repeated cuts, but a circular saw with a straightedge works. A set of exterior wood screws is worth buying rather than using indoor drywall screws, which rust and can snap under movement.
Cut list and dimensions
Cut four legs from 2×2 stock at 18 inches. Cut the front and back seat rails at 39 inches, and the side rails at 15 inches. These rails form a roughly 18-inch-deep frame once the legs and seat boards are installed. Cut six seat slats from 1×4 boards at 42 inches.
For the two removable trays, build each tray at approximately 18 inches wide, 14 inches deep, and 2 1/2 inches high. Cut four tray sides at 14 inches and four tray ends at 16 1/2 inches. The shorter side pieces fit between the ends. Cut six slats per tray at 16 1/2 inches, leaving roughly 1/2 inch between slats. Adjust these dimensions if your lumber is significantly narrower or thicker than standard stock.
Build the bench frame
Start by sanding the legs and rails through 120 grit. Mark the top of each leg at 18 inches, then clamp the front rail between two legs so its top edge is flush with the leg tops. Drill two pilot holes per joint and drive 2 1/2-inch exterior screws. Repeat for the back rail.
Attach the side rails between the front and back assemblies. Check the frame for square by measuring both diagonals; they should match within about 1/8 inch. If one diagonal is longer, push the frame gently until the measurements agree before tightening the screws.
Add a center support running front to back under the seat. Without this support, the 1×4 seat boards can flex, especially when someone drops onto the bench. Install it level with the top of the side rails. A small amount of clearance beneath the seat is useful because it leaves room for the removable trays.
Install the seat and tray supports
Lay the six seat slats across the frame, starting flush at the front and leaving even gaps of about 1/4 inch. Use a spacer block to keep the gaps consistent. Predrill near both ends of every slat and fasten with 1 1/4-inch exterior screws. Do not overtighten; crushed fibers around the screw head collect water and look rough after finishing.
Install two horizontal tray supports on each side of the lower opening. Position the supports about 3 inches above the floor, leaving enough clearance for the trays to slide in and out. The supports should run front to back and be parallel. Use a scrap tray as a test gauge before fixing them permanently.
For a porch with an uneven floor, add adjustable furniture feet or screw-on rubber glides under the legs. Otherwise, the bench may rock even when the frame is square. Rubber feet are also helpful on painted concrete because they reduce moisture transfer into the end grain.
Make the removable slatted trays
Assemble each tray frame with the 14-inch side pieces between the 16 1/2-inch ends. Glue is optional outdoors; screws are the important part. Drill two pilot holes at each corner and use 1 1/4-inch screws. Keep the tray square by checking its diagonals before the screws are fully tight.
Attach the six slats across the tray, leaving approximately 1/2 inch between them. These wide gaps are intentional. Narrow gaps hold grit and wet leaves, while larger gaps allow small objects to fall through. If the tray will hold children’s shoes or loose gloves, reduce the gaps to 1/4 inch.
Round over sharp corners with sandpaper. If you want easier handling, add a small finger notch in the center of each tray’s front edge. Do not install permanent handles on the outside unless you have checked the clearance; protruding hardware can catch shoes and prevent the tray from sliding fully under the bench.
Sand and finish for the season
Sand the completed bench and trays with 120 grit, then finish with 180 grit on the seat and all hand-contact areas. Break every exposed edge, especially the front seat edge and tray corners. A penetrating exterior wood finish is a practical choice because it is easier to renew than peeling film finishes.
Apply two thin coats, following the label’s drying time. Brush extra finish onto end grain, but wipe off puddles from horizontal surfaces. If you use pressure-treated lumber, let it dry until the surface no longer feels cool or damp; this may take several weeks. Finishing wet lumber traps moisture and encourages checking.
Inspect the bench at the start of each wet season. Shake out the trays, clear debris from the gaps, and touch up exposed end grain. Replace any fastener showing rust. A basic exterior wood filler is fine for small cosmetic cracks, but it will not repair a loose joint or a split load-bearing rail.
Common mistakes to avoid
The most common failure is making the tray opening too tight. Allow at least 1/4 inch of total side-to-side clearance and test the trays after finishing, since paint or finish adds thickness. Another problem is omitting the center seat support, which leads to sagging. Finally, do not rely on glue alone outdoors. Seasonal wood movement and damp conditions demand mechanical fasteners.
A weather-resistant bench cushion can make the seat more comfortable, but keep it removable so the wood can dry after rain. The trays should remain uncovered and easy to remove; that is what makes this bench useful rather than just another place for wet shoes to sit.
Related guides
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