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@TeachRez@TeachRez.co.uk There are 2 classification of wood joints: 1.Permanent 2.Temporary
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@TeachRez@TeachRez.co.uk This section concentrates on the Permanent Carcase/box joints: ButtLap HousingDovetailComb
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@TeachRez@TeachRez.co.uk Description Permanent Carcase/Box Sides that permanently join together resembling a body of a box shape - which is then ready to receive a top and / or bottom. By gluing the sides the joint becomes permanent and secure
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@TeachRez@TeachRez.co.uk Butt Joint
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@TeachRez@TeachRez.co.uk Description: Butt Joint This is the simplest form of joining timber and as the name suggests the lengths are simply butted together and glued. Commonly used in picture frames, skirting boards. Mitre Box Jig can aid cutting Mitre Joints.
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@TeachRez@TeachRez.co.uk The Process Ensure ends of both section are perfect 90° angles Glue ends and clamp
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@TeachRez@TeachRez.co.uk Advantages: Simple Disadvantages: Weak with only glue to support it End grain will absorb a lot of the glue Can require additional aids such as dowelling
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@TeachRez@TeachRez.co.uk Lap Joint
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@TeachRez@TeachRez.co.uk Description: Lap Joint As the name suggests the end of one length laps over the other. Used in the manufacture of drawers, boxes and timber framed buildings. Lap joints can be "full" or "half".
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@TeachRez@TeachRez.co.uk The Process Mark out the lengths. Saw slightly deeper than required (to allow for sanding) Glue and clamp joint
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@TeachRez@TeachRez.co.uk Advantages: Simple Stronger than a butt joint More surface area to glue. Disadvantages: Relatively weak Will require extra reinforcement
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@TeachRez@TeachRez.co.uk Housing Joint
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@TeachRez@TeachRez.co.uk Description: Housing Joint A housing joint is a groove cut to allow a length to slot into place. Used in the production of shelving and cases.
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@TeachRez@TeachRez.co.uk The Process Mark out the housing ensuring it fits the thickness of the 2nd length Saw and chisel out the housing Glue 2nd length into housing.
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@TeachRez@TeachRez.co.uk Advantages: Relatively strong Simple construction Disadvantages: Not as asthetically pleasing as other joints.
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@TeachRez@TeachRez.co.uk Dovetail
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@TeachRez@TeachRez.co.uk Dovetail Halving
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@TeachRez@TeachRez.co.uk The dovetail joint is one of the most popular joints because it is attractive and has good tensile strength (difficult to pull apart). A series of pins and cuts are cut into the end of the lengths, these triangular shapes then lock together. Description: Dovetail
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@TeachRez@TeachRez.co.uk Dovetail is one of the oldest joints, used in Egyptian times. Today we see this joint in items such as boxes and drawers. Description: Dovetail
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@TeachRez@TeachRez.co.uk The Process Mark out the tail board. Using a dovetail saw, cut the tails, and finish with a fret saw, then finish off with a chisel. Use the tails to mark out the pins, using the tails as a guide.
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@TeachRez@TeachRez.co.uk The Process Cont. Using the same process as cutting the tails to cut the pins. Attach, glue and sand or plane to finish.
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@TeachRez@TeachRez.co.uk Advantages: Very strong Aesthetically pleasing Needs no extra support Disadvantages: Complex to construct but a jig can be used
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@TeachRez@TeachRez.co.uk Comb Joint
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@TeachRez@TeachRez.co.uk Description: Comb Joint A comb joint has both lengths of timber evenly spaced - a rectangular cut that allow the lengths to lock together. A comb joint is also called a finger joint or box joint and is used in furniture manufacture and floor boards.
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@TeachRez@TeachRez.co.uk The Process With care, plan out the size of the combs and mark out the end of one length Using a tenon saw cut the marked length and chisel to the line
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@TeachRez@TeachRez.co.uk The Process Cont. Use the cut length to mark the end of the second length Cut the second length Lock together and glue
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@TeachRez@TeachRez.co.uk Advantages: strong joint A jig can be used for faster comb cutting Plenty of gluing surfaces Disadvantages: Can look busy if there are many small joints Time consuming to cut
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for floorboards?
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for floorboards?
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for floorboards? Comb or Finger Joint
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for drawers? Why?
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for drawers? Why?
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@TeachRez@TeachRez.co.uk Which of the joints below is often used for drawers? Why? Dovetail Joint
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@TeachRez@TeachRez.co.uk Which of the joints below is commonly used in picture frames and skirting boards. Why?
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@TeachRez@TeachRez.co.uk Which of the joints below is commonly used in picture frames and skirting boards. Why?
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@TeachRez@TeachRez.co.uk Which of the joints below is commonly used in picture frames and skirting boards. Why? Butt Joint
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@TeachRez@TeachRez.co.uk Which of the joints below is used for drawers, boxes and timber framed buildings?
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@TeachRez@TeachRez.co.uk Which of the joints below is used for drawers, boxes and timber framed buildings?
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@TeachRez@TeachRez.co.uk Which of the joints below is used for drawers, boxes and timber framed buildings?
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@TeachRez@TeachRez.co.uk Which of the joints below is used for drawers, boxes and timber framed buildings? Lap Joint
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@TeachRez@TeachRez.co.uk Which of the joints below is used in the production of shelving and cases?
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@TeachRez@TeachRez.co.uk Which of the joints below is used in the production of shelving and cases?
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@TeachRez@TeachRez.co.uk Which of the joints below is used in the production of shelving and cases? Housing Joint
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