Essential Joinery - Marc Spagnuolo

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strengthening the joint.

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      TOOLS

      Biscuit joiner

      Straightedge

      1. Arrange the parts to be

       joined and mark the center point

       of the biscuits.

      2. On frame parts, there usually

       isn’t enough width to put more

       than one biscuit side by side,

       but there is enough thickness to

       stack them. Set up the biscuit

       joiner fence so the slot will be

       off-center, with at least ⅛" of

       material between the slots.

      3. Wrap the pencil line

       around to both faces of the

       adjoining workpieces.

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      ESSENTIAL JOINERY

      Butt Joints | FRAME BUTT JOINT USING DOUBLE BISCUIT

      4. Plunge into both workpieces,

       once on each face.

      5. The slots should now be

       symmetrical.

      6. Add two biscuits with glue

       and apply pressure to the joint.

       The second biscuit doubles the

       glue surface area.

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      ESSENTIAL JOINERY

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      FRAME BUTT JOINT USING DOMINOES

      A Domino joiner works in the same way as a biscuit joiner. The only difference is

       that the biscuits are replaced with loose tenons called Dominoes.

      TOOLS

      Square

      Domino joiner

      1. Arrange the parts to be

       joined and mark the center point

       of each Domino.

      2. Set up the Domino fence so

       the mortises are centered on

       the thickness of the board and

       plunge at each pencil line on both

       adjoining pieces.

      3. Insert Dominoes into the two

       mortises and assemble the joint.

      TIP

      Domino tenons fit tightly

       into their mortises and can

      be very difficult to remove after a

       test assembly. Use a knife or some

       sandpaper to remove the little ridge

       on each side of the Domino and

       you’ll have a much easier time

       inserting and removing the tenon

       from the mortises.

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      ESSENTIAL JOINERY

      CASE BUTT JOINT USING POCKET SCREWS

      Using pocket screws to reinforce case butt joints is standard fare and a great choice

       for kitchen cabinetmakers. It also works well in any case where face frames or other

       materials will conceal the screws.

      1. Arrange parts and label them

       clearly. Lay out the screw

       locations on the board that will

       receive the pocket holes.

      2. Secure the board in the

       pocket screw jig as per the

       manufacturer’s instructions and

       drill the holes. Pay close attention

       to the face you’re drilling into and

       how the screws will penetrate into

       the adjoining workpiece. Ideally,

       we want the screws driving

       toward the “meat” of the board,

       and not toward the edge. But

       sometimes, keeping the pockets

       hidden requires exceptions.

      3. Apply clamping pressure

       to the joint so the boards can’t

       move (glue is optional but

       certainly doesn’t hurt) and drive

       in the screws.

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      TOOLS

      Square

      Pocket screw jig

      Drill

      Drill bit and driver

      Clamps

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      ESSENTIAL JOINERY

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      CORNER CASE BUTT JOINT USING BISCUITS

      Another great joinery solution for casework is biscuits. Biscuits are premade

       football-shaped wooden discs that slide into perfectly sized slots cut by a tool

       called a biscuit joiner.

      TOOLS

      Adjustable square

      Biscuit joiner

      Clamps

      1. With the two panels flat, butt

       them up end to end and mark the

       biscuit locations on both pieces

       at once. One piece receives slots

       on the face and the other receives

       slots on the end of the panel. In

       order to get a perfect flush joint

       without changing the settings

       on the joiner, transfer the marks

       around to the opposite face of the

       end slot panel.

      2. Set up the biscuit joiner fence

       so that the biscuits are centered

       on the thickness of the panel.

      3. Cut the slots on the end of

       the panel, with the fence on the

       back side of the panel.

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