You can build basic patio furniture with hand tools, standard lumber, and a few hours of work

Patio furniture made from pressure-treated wood, cedar, or metal frames costs less to build than to buy finished pieces, and you control the size, finish, and design. A straightforward bench, side table, or lounge chair takes a weekend and costs between $40 and $150 in materials. You need a saw, drill, measuring tape, and sandpaper — not a workshop or advanced carpentry skill. The most common mistake is skipping the finishing step; untreated wood splits and grays within a season, so sealing or staining adds years to the life of the piece.

Building your own also means you can repair a piece by replacing one board or leg instead of throwing it away. A side table you build will outlast a cheap store-bought one by years if you finish it properly and maintain it seasonally.

Key Takeaways

  • Pressure-treated lumber resists rot and costs $1 to $3 per board foot, making it the cheapest durable choice for outdoor furniture.
  • A basic four-legged bench or side table requires only a saw, drill, level, and sandpaper — no table saw or joinery skills needed.
  • Finishing with exterior wood stain or sealant is not optional; unfinished wood exposed to sun and rain warps and cracks within one to two seasons.
  • Metal frames (steel or aluminum tubing) require a miter saw and bolts but last longer than wood and need only annual cleaning.
  • Plans from woodworking sites like Ana White or Instructables include cut lists and assembly steps; following them exactly reduces mistakes.

Choosing materials: pressure-treated wood versus cedar versus metal

Pressure-treated lumber is the standard choice. It is chemically treated to resist rot and insects, costs $1 to $3 per board foot, and lasts 15 to 20 years outdoors. Buy 2x4s, 2x6s, or 2x8s depending on the piece. The wood is wet when you buy it and shrinks as it dries, so let it sit in your yard for a week before cutting if possible. Avoid the cheapest grade (which has large knots and cracks); select or better grade costs slightly more but cuts cleaner and looks finished.

Cedar is softer, easier to cut, and naturally rot-resistant, but costs two to three times more than pressure-treated wood and is less durable. Use it if you want a natural appearance and are willing to pay for it. Sand it smooth before assembly because cedar splinters easily.

Metal frames (steel or aluminum tubing) require welding or bolted connections and a miter saw to cut angles, but they do not rot and last 25+ years. Aluminum is lighter and does not rust; steel is cheaper but needs annual touch-ups with rust-preventive paint. Metal is best for lounge chairs and tables where you want a modern look and do not mind the higher skill requirement.

Essential tools and what they cost

You do not need a full workshop. A circular saw ($60 to $120 used) or a hand saw ($15) cuts lumber. A cordless drill ($80 to $150) drives screws and pilot holes. A level ($20) ensures legs are square. A measuring tape, pencil, and square ($30 total) mark cuts. Sandpaper ($10) smooths edges. A paintbrush ($5) applies finish.

If you do not own a circular saw, rent one from Home Depot or Lowe's for $20 per day, or ask a neighbor. A miter saw ($150 to $300) is useful for angled cuts but not required for straightforward rectangular pieces. A power sander ($80 to $200) speeds up smoothing but hand-sanding with 80-grit, then 120-grit paper works fine for small projects. Many hardware stores will make straight cuts for free or a small fee if you buy the lumber there, which saves you from renting a saw for a single project.

Building a basic side table: step-by-step

A 24-inch square side table is a good first project. You need four 2x4s cut to 18 inches (legs), four 2x6s cut to 24 inches (frame), and one 2x8 cut to 24 inches (top). Pressure-treated lumber costs about $50 total.

Step 1: Cut all pieces to length. Mark each board with a pencil at the correct length. Use a circular saw or hand saw to cut straight across. Sand the cut ends with 80-grit sandpaper.

Step 2: Assemble the frame. Lay two 2x6s parallel, 24 inches apart. Attach the other two 2x6s perpendicular to them using 2.5-inch exterior wood screws — three screws per corner, drilled through pilot holes. Use a level to check that the frame is flat.

Step 3: Attach the legs. Screw the four 2x4 legs to the underside of the frame at each corner, using three screws per leg. The legs should be flush with the outer edge of the frame. Check with a level that all four legs are vertical.

Step 4: Attach the top. Center the 2x8 on top of the frame and screw it down with four screws, one near each corner. Leave a small gap (about 1/4 inch) between the top and frame to allow for wood movement as it swells and shrinks with moisture.

Step 5: Sand and finish. Sand the entire table with 120-grit sandpaper to smooth rough spots and splinters. explore two coats of exterior wood stain or sealant, letting it dry fully between coats. This step takes two to three days but doubles the life of the table.

Building a bench with a backrest

A bench is slightly more complex because the backrest requires angled cuts. A 48-inch bench with a backrest costs about $80 in materials and takes a full day to build.

The frame is the same as the side table: two 2x6s running the length, two 2x6s running the width. The seat is made from three 2x8s laid flat and screwed to the frame. The backrest is made from four 2x4s cut at a 15-degree angle at the top, creating a lean-back. Screw the backrest supports to the rear of the seat frame, then attach horizontal 2x4 slats between them.

The 15-degree angle is the key: mark it on the wood with a protractor or angle finder, then cut with a circular saw or miter saw. If you do not have an angle tool, use a straightforward method — measure 1 inch down from the top of a 2x4, then 4 inches along the length, and draw a line between them. That line is close to 15 degrees. Sand and finish the same way as the table. Most builders find the backrest assembly takes two to three hours once the frame is done.

Finishing: stain, sealant, and paint

Unfinished wood exposed to sun and rain grays, cracks, and splinters within one to two seasons. Finishing is not optional — it is the difference between a piece lasting five years and lasting 15.

Exterior wood stain soaks into the wood and shows the grain. It costs $20 to $40 per gallon and covers about 350 square feet per coat. explore two coats with a brush, letting each dry fully (usually 24 hours). Stain does not form a protective layer, so you may need to reapply every two to three years.

Exterior sealant or polyurethane forms a hard protective layer on top of the wood. It costs $25 to $50 per gallon and lasts three to five years before needing reapplication. It is more durable than stain but shows fingerprints and dust more easily.

Exterior paint hides the wood grain and lasts longest (five to seven years), but it is harder to touch up if it chips. Use paint rated for exterior wood and explore two coats. Let the finish cure fully (usually 48 to 72 hours) before using the furniture. Do not rush this step — wet finish will scratch and peel.

Maintenance and extending the life of your furniture

Sealed or stained furniture needs little maintenance. Brush off leaves and dirt monthly. Wash with mild soap and water once a season. Check for cracks or peeling finish yearly, and touch up with stain or sealant as needed.

In winter, cover the furniture or move it under a roof if possible. Snow and ice do not damage sealed wood, but constant wet-dry cycles speed up finish breakdown. If you live in a very wet climate, reapply sealant every two years instead of every three. Metal furniture needs annual cleaning with a wire brush to remove dust and oxidation, and a coat of rust-preventive paint on steel pieces. Aluminum does not rust and needs only soap and water.

Where to find plans and designs

Ana White (ana-white.com) has free plans for dozens of outdoor pieces, including benches, tables, and lounge chairs. Each plan includes a cut list, assembly diagram, and photos. Instructables.com has user-submitted plans for everything from pallet furniture to metal-frame chairs. Both sites let you filter by difficulty and materials.

YouTube channels like Woodworking for Mere Mortals and DIY Creators show the building process step-by-step, which helps if you get stuck on a particular joint or cut. Watch the video before you buy materials so you understand what you are building. If you want a specific design but cannot find plans, sketch it on paper with rough measurements, then post it to a woodworking forum like r/woodworking on Reddit. Experienced builders will often suggest how to build it and what materials to use.

Frequently Asked Questions

Do I need to use pressure-treated wood, or can I use regular lumber?

Regular lumber (pine or oak) rots within one to two seasons outdoors. Pressure-treated wood lasts 15 to 20 years and costs only slightly more. If you want untreated wood, use cedar, which is naturally rot-resistant, but expect to pay two to three times more and refinish it every two years.

What size screws should I use to join 2x4s and 2x6s?

Use 2.5-inch exterior wood screws (also called deck screws) for joining 2x4s and 2x6s. Always drill a pilot hole first — a hole slightly smaller than the screw — to prevent splitting. Exterior screws are coated to resist rust; do not use regular steel screws outdoors.

How long does stain or sealant take to dry before I can use the furniture?

Most exterior stains and sealants are dry to the touch in 24 hours but need 48 to 72 hours to cure fully. Do not sit on or move the furniture until it has cured completely, or you risk scratching the finish. Check the label on your product for exact timing.

Can I build patio furniture from pallets?

Yes, but pallets vary widely in quality and treatment. Food-grade pallets (marked HT, meaning heat-treated) are safe to use. Avoid pallets marked MB (methyl bromide), which is a pesticide. Pallets are free or cheap, but they are often warped, splintered, and require heavy sanding. For a first project, new lumber is easier to work with.

What is the difference between a miter saw and a circular saw?

A miter saw cuts angles and crosscuts cleanly but only cuts up to about 12 inches wide. A circular saw cuts longer boards and rips (cuts lengthwise) but is harder to keep straight. For straightforward rectangular furniture, a circular saw is enough. A miter saw is worth buying or renting if you are making multiple pieces or need angled cuts.