DIY Drop-Leaf Octagon Patio Table
Step-by-step guide made from Clever Woodworks's YouTube video.
Learn how to build a versatile and stylish octagonal drop-leaf patio table. This project features a slatted top and a sturdy base constructed with pocket-hole joinery, with two hinged leaves that fold down for easy storage. The guide includes tips for using online calculators to customize the dimensions to your needs.
- Difficulty: intermediate
- Finished size: Approx. 1026mm (40.4 in) diameter
Safety
- Always wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, and a dust mask, when operating power tools.
- Ensure your table saw and router table are properly set up with all guards in place before making any cuts.
- Disconnect power to tools before changing blades or bits.
Must know before you build
- Account for swing-out leg thickness in base design; prevents crooked drop leaves.
- Central tabletop must conceal folded swing-out legs for proper aesthetics.
- Use a self-centering drill bit (Vix bit) for perfectly aligned hinge pilot holes.
- Cut half-lap joints on a router table with a straight bit for strong, precise joinery.
- Make test cuts on scrap, then 'edge in' to final marks to prevent overcutting.
- Choose brass hinges for outdoor longevity; they resist rust better than steel.
Tools
- Circular saw (Handheld power saw, DeWalt, 20V MAX)
- Table saw (DeWalt)
- Pocket hole jig (Kreg)
- Cordless drill/driver (DeWalt, 20V MAX)
- Random orbital sander (DeWalt)
- Router table (Trend)
- Router bits (roundover bit)
- Jigsaw (DeWalt, 18V) (optional)
- Disc sander (Random orbital sander, DeWalt, 18V) (optional)
- Self-centering drill bit (Vix bit) (optional)
- Clamps
Materials
- Pine boards
- Wood glue
- Pocket-hole screws
- Wood screws
- Brass hinges (Multiple)
- Wood plugs
- Sandpaper (Up to 150 grit)
- Garden Furniture Oil (Osmo)
- UV Protection Oil (Osmo)
Step by step
Step 1: Material Preparation
All the boards for the project are cut to their initial sizes, ripped to a consistent width, drilled with pocket holes, and sanded smooth in preparation for assembly.
- Cut Boards to Length and Width. Use a circular saw to cut the boards to rough length, then use a table saw to rip all pieces to a uniform width.
- Drill Pocket Holes. Use a pocket hole jig to drill holes in the ends of the boards that will form the base and leg frames.
- Sand the Pieces. Sand all the prepared boards with a random orbital sander, working up to 150-grit sandpaper for a smooth finish.
Step 2: Assemble the Base Unit
The main frame of the table base is constructed using pocket-hole screws. Spacers are used to ensure the cross-members are positioned uniformly.
- Attach Top Spanning Boards. Lay out the two main vertical legs. Use a spacer block to position a short spanning board between them and attach it with pocket-hole screws.
- Attach Bottom Spanning Board. Flip the assembly and attach the long bottom spanning board to connect the two leg sections.
- Install Remaining Supports. Attach the remaining short spanning boards and vertical supports to complete the base unit structure, ensuring everything is square.
- Tip: Using spacer blocks is a great way to ensure consistent and repeatable placement of parts without measuring each time.
Step 3: Build the Swing-Out Legs
The two T-shaped leg frames that will swing out to support the table leaves are assembled using pocket-hole joinery. The feet are then shaped for a more finished look.
- Assemble the Leg Frames. Construct two T-shaped leg frames by attaching a horizontal foot piece to a vertical leg piece using pocket-hole screws. Use spacers to ensure uniform assembly.
- Shape the Feet. Mark a curve on the ends of the leg feet. Use a jigsaw to cut the curve and then smooth the shape on a disc sander.
Step 4: Create the Tabletop Frame
The eight outer frame pieces for the octagonal top are cut at 22.5-degree angles. Then, half-lap joints are cut on the ends of each piece using a router table to create a strong, interlocking frame.
- Cut Angled Frame Pieces. Set your table saw miter gauge to 22.5 degrees. Carefully cut the angles on both ends of the eight tabletop frame pieces.
- Tip: Never try to hit your mark on the first cut, always edge into it.
- Cut Half-Lap Joints. Using a straight bit in a router table, cut a half-lap joint on the ends of the frame pieces. Make a shallow reverse 'climb cut' first to prevent tear-out, then make the full pass.
- Tip: To reduce tear-out when cutting half-laps on a router table, make a very shallow reverse 'climb cut' first before making the full-depth pass in the correct direction.
- Cut Spanning Board Half-Laps. Cut a half-lap joint along the entire length of the two central spanning boards that will connect the two halves of the tabletop.
- Assemble and Check Frame. Dry-fit the frame pieces together. Glue and screw the half-lap joints of the outer frame, using clamps to hold them tight. Check the depth of the half-lap for the spanning board before routing it.
Step 5: Assemble the Tabletop Leaves
The two tabletop leaves are assembled by cutting the inner slats to fit the octagonal frame and attaching them with glue and screws. Spacers ensure even gaps between the slats.
- Cut Slats to Fit. Using a scrap piece and spacer blocks as a guide, mark and cut the inner slats to fit inside the octagonal frame. The slats will have a combination of 45-degree and 90-degree cuts.
- Cut Half-Laps on Slats. Use the router table to cut half-lap joints on the ends of the slats where they will meet the outer frame.
- Attach Slats to Frame. Apply glue to the half-lap joints and screw the slats into place from underneath. Use the pre-cut spacer blocks to maintain even gaps between each slat.
- Round Over Edges. Using a roundover bit in the router table, soften all the top edges of the slats and the outer frame. Also, round over the outer edges of the entire tabletop, except where the hinges will be placed.
Step 6: Final Assembly
The table is fully assembled by attaching the swing-out legs to the base, and then attaching the tabletop leaves to the base using hinges. Spacers are added to compensate for a design oversight.
- Attach Swing-Out Legs. Use pieces of plywood as shims to elevate the base unit. Position the swing-out legs and attach them to the base with hinges.
- Attach Tabletop Leaves. Place the tabletop leaves onto the base. Because the swing-out legs prevent the leaves from hanging vertically, add spacer blocks under the hinges. Use a self-centering bit to pre-drill for the hinge screws and attach the leaves.
- Tip: A self-centering drill bit (Vix bit) is perfect for drilling pilot holes for hinges, ensuring the screws are perfectly centered in the holes.
- Common mistake: Forgetting to account for the thickness of the swing-out legs when designing the base. This can prevent the drop leaves from hanging vertically, requiring spacers under the hinges to compensate.