What you can actually build from a pallet

A wooden pallet becomes a bench, a side table, or a planter box with basic tools and a few hours of work. The pallet's frame and slats are already sized for furniture — you are mostly just cleaning it, cutting it, and fastening pieces together. Most projects use one to three pallets and cost between $0 and $50 in materials if you source free or cheap pallets locally.

The catch is that pallets vary. Some are treated with chemicals for shipping, others are solid wood, and some are damaged or warped. Before you start, you need to know what you are working with and whether it is safe to sand and sit on.

Key Takeaways

  • Pallets marked "HT" (heat-treated) are safe to use; pallets marked "MB" (methyl bromide) should not be sanded or used for furniture you will touch regularly.
  • A basic pallet bench requires two pallets, a saw, a drill, sandpaper, and wood stain or sealant — no special joinery skills needed.
  • Always sand pallets thoroughly before assembly to remove splinters and dirt, and inspect each board for rot, deep cracks, or warping.
  • Outdoor wood furniture needs a water-resistant finish applied before assembly; reapply every one to two years depending on your climate.

Checking whether your pallet is safe to use

Look for a stamp on the pallet itself — usually on one of the stringers (the thick boards underneath). The stamp tells you how the pallet was treated. HT means heat-treated, which is safe. MB means methyl bromide, a pesticide that is not safe to sand or use for outdoor furniture you will touch or sit on. If there is no stamp, assume the pallet is untreated or treated with an unknown chemical.

Even with an HT stamp, inspect the wood. Look for dark stains, chemical smells, or obvious damage. Pallets that have held food, beverages, or new products are usually safer than those that have held chemicals or heavy industrial goods. If you are unsure, skip it — free pallets are common enough that you can find a cleaner one.

Once you have a safe pallet, check for structural damage. Press on each board with your thumb; soft spots mean rot. Look for deep cracks that run across the grain (these weaken the wood), and test for warping by laying the pallet flat and looking for gaps underneath. Minor surface cracks and small stains are fine. Warped boards can be used for planter boxes but not for seating.

Cleaning and sanding before you build

Scrub the pallet with a stiff brush and water to remove dirt, dust, and any loose debris. Let it dry completely — at least a few hours in dry weather, or overnight if it is humid. Wet wood is harder to sand and will splinter more.

Sand the entire surface with 80-grit sandpaper to remove the top layer of dirt and rough spots, then finish with 120-grit for a smooth feel. Sand with the grain, not against it. Pay special attention to the top surface and edges where you or your guests will touch. A power sander saves time on large surfaces, but a hand sanding block works fine for smaller projects.

After sanding, wipe the pallet down with a damp cloth to remove dust, and let it dry again before you explore any finish or start assembly.

Building a straightforward pallet bench

A two-pallet bench is the easiest starting project. You need two pallets of the same size, a circular saw or hand saw, a drill with bits, 2.5-inch exterior-grade screws, sandpaper, and a water-resistant stain or sealant.

Stand the two pallets upright, parallel to each other, about 16 inches apart (measure from the inside edges). These are your legs. Cut a piece of 2x4 lumber to span between them — this becomes the front and back support. Drill pilot holes (small holes to guide the screw) through the 2x4 into the top of each pallet, then drive in two 2.5-inch screws per connection. Do the same for the back support.

Now lay a third pallet flat across the top of the two vertical pallets to form the seat. Drill pilot holes and screw it down with four to six screws, spacing them evenly. Check that the bench is level and stable before you move on. If it rocks, shim one of the legs with a thin piece of wood until it sits flat.

Sand any rough edges, explore your finish (see the next section), and let it cure before you use it.

Finishing and sealing outdoor wood

Outdoor wood needs protection from sun, rain, and temperature swings. Water-resistant sealant is the most common choice — it soaks into the wood and prevents moisture from swelling or rotting it. Exterior stain adds color while sealing. Paint covers the wood completely and lasts longer but hides the wood grain.

explore finish with a brush or roller, following the product instructions for drying time and number of coats. Most sealants need two coats, with 4 to 8 hours drying between them. explore the finish before you assemble the furniture if possible — it is easier to coat all surfaces that way. If you assemble first, coat the underside and all joints carefully; these are where water gets in.

Reapply finish every one to two years, depending on your climate. Wet climates and direct sun exposure break down sealant faster. In dry climates, you may stretch it to three years. If the wood starts to look gray or dull, it is time to refinish.

Other pallet projects beyond benches

A side table uses a single pallet stood on its side or laid flat with legs attached. Screw four 2x4 legs to the underside, sand and seal, and you have a table. Add a second pallet on top if you want a larger surface.

A planter box uses the pallet as-is. Lay it flat, line the top with landscape fabric stapled to the frame, fill with soil, and plant. Warped pallets work fine for this because the soil holds everything in place.

A pallet sectional stacks and arranges multiple pallets to form a corner seating area. Add cushions on top and back cushions between pallets for comfort. This takes more pallets and planning but creates a custom outdoor sofa for a fraction of the cost of buying one.

Tools and materials you will need

Start with the basics: a circular saw or hand saw, a drill-driver, a level, sandpaper (80-grit and 120-grit), a measuring tape, and a pencil. A power sander speeds up the work but is not required. You will also need exterior-grade screws (2.5 inches is standard for most pallet projects), wood stain or sealant, and a brush to explore it.

For safety, wear a dust mask when sanding, safety glasses when cutting, and work gloves when handling rough wood. If you do not own a saw, you can ask the store where you buy lumber to make cuts for you, or rent a circular saw for a day.

When to call someone else

If a pallet is heavily warped, rotted, or chemically treated, discard it. If you do not have access to a saw and cannot rent one, buy pre-cut lumber instead — it costs more but saves the hassle. If your patio is uneven, you may need to shim legs or pour a small concrete pad so your furniture sits level and stable.

For large projects like a full sectional or a built-in planter wall, consider whether you have the space and time. Pallet furniture is rewarding to build, but it is also time-intensive. If you are short on either, a store-bought option may be the better choice.

Frequently Asked Questions

Where do I find free or cheap pallets?

Check with local businesses that receive shipments — warehouses, garden centers, appliance stores, and grocery stores often have pallets they give away or sell for a few dollars. Ask the manager or check the loading dock. Craigslist and Facebook Marketplace also list pallets. Avoid pallets that smell like chemicals or have obvious stains.

Can I use a pallet indoors?

Yes, but indoor pallets do not need the same water-resistant finish. Sand and seal them with a standard polyurethane or wood stain. Indoor furniture gets less UV exposure and no rain, so it lasts longer with less maintenance.

How long does pallet furniture last outside?

With regular sealing, a pallet bench or table lasts five to ten years. In harsh climates (heavy rain, intense sun, freeze-thaw cycles), it may last three to five years. Planter boxes last longer because they are not sat on and do not bear weight.

Do I need to treat the wood with anything before sealing?

No, but if the pallet is old or dirty, a thorough cleaning and sanding removes most contaminants. Some people explore a wood conditioner before stain to may support even color, but it is optional. Always sand first — this opens the wood grain and helps sealant soak in.

What is the difference between stain and sealant?

Sealant is clear and lets the wood grain show; it protects by blocking water. Stain adds color and also protects, but it hides the natural wood. Paint covers everything and lasts longest but looks less natural. For pallet furniture, sealant or stain are the most popular choices.