How to Build an Outdoor Dining Set: Table and Benches

A custom outdoor dining set is one of those projects that pays for itself the first time you sit down to a meal in your backyard. Store-bought sets in comparable sizes and materials routinely cost $800 to $2,500 or more. Building your own with quality lumber runs $200 to $500 in materials and gives you something that’s sized for your space, built to survive your local weather, and finished the way you want it.

This guide covers a complete matching set: a 72” x 36” farmhouse-style dining table and two 72” benches — enough seating for six to eight adults. We’ll walk through wood selection, materials, cut lists, step-by-step construction, weatherproofing, and long-term maintenance so your set lasts for years outdoors.

Choosing the Right Wood for Outdoor Furniture

The single most important decision in any outdoor wood project is species selection. Not all wood performs equally when exposed to rain, sun, humidity, and temperature swings.

Cedar (Best Overall Choice)

Western red cedar is the top pick for outdoor furniture. It’s naturally rot-resistant, lightweight, easy to work, holds screws well, and takes finish beautifully. It’s widely available at home centers and lumber yards. Expect it to last 15-25 years with basic maintenance. The main downside is cost — it runs about 30-50% more than pressure-treated pine.

Redwood

Similar properties to cedar and even more rot-resistant. Availability varies by region (most common in the western U.S.). Gorgeous appearance with a rich red tone. More expensive than cedar in most markets.

Teak

The gold standard for outdoor furniture — extraordinarily durable, dense, and naturally oily. Virtually rot-proof. The downside: it’s expensive, hard on tools (the silica content dulls blades), and typically only available at specialty lumber dealers. Best suited for high-end projects where budget isn’t a concern.

Pressure-Treated Pine

The most affordable option and widely available. Modern PT lumber uses copper-based preservatives (not the old arsenic-based formula) and is safe for outdoor furniture. It’s heavier and more prone to warping and checking than cedar. Use only for structural elements (legs, cross-members) if you want to minimize cost, and use a different species for the top surfaces where aesthetics matter.

Untreated Pine or Douglas Fir

Not recommended for outdoor projects unless you are committed to rigorous annual sealing and refinishing. Will rot within a few years if left unsealed.

For this build, we’ll use cedar throughout. Adjust materials costs accordingly if you substitute another species.

Tools You’ll Need

Miter saw — for crosscutting all lumber to length
Drill/driver with bits and a countersink
Impact driver — strongly recommended for driving lag bolts
Clamps — at least four bar or pipe clamps
Tape measure, speed square, combination square
Random orbit sander
Level
Safety glasses and hearing protection

Table Materials List (72” x 36”)

Lumber:

(2) 4x4 x 8’ cedar — for legs (cut into four legs)
(2) 2x4 x 8’ cedar — for long aprons
(2) 2x4 x 4’ cedar — for short aprons
(7) 2x6 x 8’ cedar — for tabletop boards
(2) 2x4 x 8’ cedar — for lower stretchers (optional but recommended)

Hardware:

3/8” x 3-1/2” lag bolts + washers — 16 pcs
2-1/2” exterior structural screws (GRK, FastenMaster, or equivalent) — 1 lb box
3” exterior structural screws — 1 lb box
Figure-8 tabletop fasteners — 10 pcs (or L-clips)
Construction adhesive (Loctite PL Premium or Gorilla Construction Adhesive)

Finishing:

Exterior wood sealer or semi-transparent deck stain — 1 quart
80, 120, 150-grit sandpaper

Table Cut List

Part	Qty	Dimensions
Legs	4	3-1/2” x 3-1/2” x 29”
Long aprons	2	1-1/2” x 3-1/2” x 65”
Short aprons	2	1-1/2” x 3-1/2” x 29”
Long stretcher	1	1-1/2” x 3-1/2” x 65”
Short stretchers	2	1-1/2” x 3-1/2” x 29”
Tabletop boards	7	1-1/2” x 5-1/2” x 72”

Note: Leg height of 29” plus the 1-1/2” top = 30-1/2” finished table height, which is standard for outdoor dining.

Step-by-Step: Building the Table

Step 1: Cut All Parts to Length

Work from your cut list and cut all parts before starting assembly. Use a stop block on your miter saw to guarantee all four legs are exactly the same length — even a 1/16” difference will cause the table to rock.

Label each part with a pencil as you cut it. Organize everything in two piles: base parts and top parts.

Step 2: Build the Two End Frames

Each end frame consists of two legs and one short apron.

Clamp one short apron between two legs. Position the apron so its top face is flush with the top of the legs, and its outside faces are flush with the outside faces of the legs.
Pre-drill and countersink for two lag bolts at each apron-to-leg connection (four lags per end frame, eight total).
Apply construction adhesive to the joint, then drive the lag bolts tight.
Check the frame for square by measuring diagonals. Adjust before the adhesive cures.
Repeat for the second end frame.

Step 3: Connect the Long Aprons

Stand both end frames upright and connect them with the two long aprons.
Position each long apron so its top face is flush with the top of the legs.
Pre-drill and countersink, then drive lag bolts through the apron into each leg.
Add construction adhesive to the joints.
Measure diagonals again and adjust for square. Let cure.

Step 4: Add the Stretchers

Lower stretchers, positioned 4-6” up from the bottom of the legs, add substantial rigidity to the base.

Cut notches or drill pocket holes to attach the stretchers to the inside of the legs.
Drive 3” exterior screws through pilot holes to secure the stretchers.
For extra strength, add a center stretcher running the length of the table.

Step 5: Lay Up the Tabletop

The tabletop uses seven 2x6 boards laid side by side — they are not edge-glued (unlike an interior table top). For outdoor use, it’s better to leave 1/8” to 3/16” gaps between boards to allow drainage and airflow, which dramatically extends the life of the wood.

Lay all seven boards across the base, spacing them evenly. Adjust spacing to achieve a consistent gap.
If any boards are slightly bowed, alternate which face is up to distribute any irregularity.
Once satisfied with the layout, mark each board’s position.

Step 6: Attach the Top Boards

Remove the base from under the top boards. Drive the first and last top boards down (one at each edge) using 3” exterior screws down into the aprons — these boards act as anchors.
Reposition the base and clamp the remaining boards in place.
Attach the top boards to the aprons using figure-8 fasteners or L-clips — do not glue the boards to the aprons.
Add a screw from the end of each top board down into the short apron to keep the ends from lifting.

Step 7: Round All Edges and Sand

Use a router with a 1/4” roundover bit on all top board edges and corners.
Alternatively, soften all edges with 80-grit sandpaper, then finish with 120 and 150-grit.
Sand all surfaces with 120-grit, then 150-grit.
Blow or brush away all dust before finishing.

Bench Plans (Two Matching 72” Benches)

Each bench follows the same structural system as the table, scaled down. One set of materials (listed below) builds both benches.

Bench Materials List

(2) 4x4 x 8’ cedar — legs for both benches (8 legs total; 4 per bench)
(4) 2x4 x 8’ cedar — aprons and stretchers
(4) 2x6 x 8’ cedar — seat boards (two boards per bench, two benches)
3/8” x 3” lag bolts + washers — 16 pcs
2-1/2” and 3” exterior structural screws — 1 lb box each

Bench Cut List (per bench)

Part	Qty	Dimensions
Legs	4	3-1/2” x 3-1/2” x 17”
Long aprons	2	1-1/2” x 3-1/2” x 65”
Short aprons	2	1-1/2” x 3-1/2” x 11”
Seat boards	2	1-1/2” x 5-1/2” x 72”

Note: Bench height of 17” (leg) + 1-1/2” (seat boards) = 18-1/2” finished seat height. This pairs correctly with a 30-1/2” table (12” clearance from seat to tabletop underside — the comfortable minimum).

Bench Assembly

Assembly mirrors the table exactly, just smaller. Build two end frames, connect with long aprons, add stretchers for rigidity. Attach two seat boards with 1/8” gap between them and round all edges. Sand to 150-grit.

Weatherproofing: Making It Last

The finish you apply — and how you maintain it — determines whether your outdoor dining set lasts 3 years or 15+.

Exterior Wood Sealer

A penetrating exterior wood sealer (such as Thompson’s WaterSeal Advanced Natural Wood Protector or similar) soaks into the wood and repels water at the fiber level. Easy to apply (brush or roll on), dries quickly, and needs reapplication every 1-2 years. Best for maintaining a natural wood look.

Semi-Transparent Deck Stain

Contains pigment (which resists UV degradation better than clear sealers) plus water repellents and sometimes mildewcides. Applied with a brush or roller, it penetrates and adds color while showing the wood grain. Needs reapplication every 2-3 years. This is our top recommendation for cedar outdoor furniture.

Solid Color Exterior Paint

Maximum protection against UV and moisture, but hides the wood grain entirely. Peeling is a maintenance issue over time. If you paint outdoor furniture, use a 100% acrylic exterior paint and prime first.

Application Tips

Apply finish to bare, clean, dry wood — moisture in the wood prevents penetration.
Apply at least two coats, allowing each to dry per manufacturer directions.
Coat all surfaces, including the underside of the top boards and the bottoms of the legs.
Consider adding furniture feet or rubber caps to the leg bottoms to prevent standing water contact.

Maintaining Outdoor Wood Furniture

Even the best outdoor wood furniture needs some attention each season.

Annual maintenance checklist:

Clean furniture with a deck cleaner or mild soap and water; let dry fully.
Inspect for any cracked boards, raised fasteners, or loose joints. Tighten or replace as needed.
Sand any rough, splintered, or peeling areas with 80-120-grit sandpaper.
Apply a fresh coat of sealer or stain to all surfaces.
In cold climates, store cushions indoors over winter and cover the furniture or move it to a covered space.

Signs your finish needs refreshing:

Water no longer beads on the surface (soaks in instead)
Wood looks gray or faded
Surface feels rough or splinters are appearing

With annual maintenance, a cedar outdoor dining set built to this plan will look good and stay structurally sound for well over a decade.

Finishing the Look: Style Details

A few optional details elevate this set from functional to beautiful:

Chamfer the leg bottoms at 45° to prevent wood fibers from splitting when legs are dragged.
Chamfer or bevel the top board edges rather than rounding them — it gives the set a more contemporary, defined look.
Add a center leg to the bench at the mid-point of the long aprons if the bench will regularly seat three adults — it prevents excessive flex.
Taper the legs on a table saw (cut a 1/4” taper on the two inside faces, starting 6” below the apron) for a lighter, more refined appearance.