What is the name of the wood or cut that is spliced together to make 1 long piece of wood?

Question

An example is 4 2feet long pieces of wood together make one 8 foot long piece of wood.

Answer 1

Longer pieces are often required when building a boat. The preferred way of joining these pieces is a scarf joint. This is essential two long identical bevels cut into the ends that are then glued together. A scarf joint should have at least an 8:1 bevel. That is, a one-inch thick piece would have an eight-inch bevel.

Commercially, long pieces are made by cutting finger joints into the end of the wood, which is then glued. This takes a special cutting tool while a standard scarf joint can be made with a block plane or cut on a table saw.

Answer 2

You have good advice so far but there are some things missing. I'd cut oversize then glue. It cuts down on weight and work. Make sure both faces are very flat. Glue is not meant to be used as a gap filler and if you do then the join is weak. You will need to use a jack plane or router and straight edge. Hold a straight edge against it and peer through where it touches. If you see light, then plane (or use a scraper) on any high spots. Look at the end grain. It wil be curved most likely. Choose the orientation so that the curve in one board opposes the curve in the other. This will minimise warping. If, however, one or both boards are already warping, then join them so the gap is inside, not on the ends. The clamps will pull the join together in the middle and the tension on the ends due to the warp will hold the ends together. You will need several clamps. Spaced out about 8 inches apart. Use these to hold the joint closed overnight. Don't use excessive pressure otherwise you will squeeze out all the glue. If you have a long solid bench, then line the bench with greaseproof paper and clamp the work to the bench. This will make it nice and straight and flat. Otherwise you will need to sandwich the boards between scraps of wood so that a) the clamps don't dent the wood, and b) a larger surface area is under pressure. If you don't have clamps, but do have a bench ( or floor ) then place heavy weights on the top. You can use buckets of water or sand or sand bags etc. PVC glue can be painted on. Epoxy will probably need to be put on with a scraper. Wash PVC coated brush in water. Assuming you use PVC glue, remove the excess glue now (where exposed) with a damp cloth - it's much easier than when it's dry. If you use epoxy, then scrape it off before it dries. I'd recommend the slow drying epoxy as clamping up might take longer than it takes for the quick set stuff to go off. Similarly, if the weather is hot, then even PVC glue can start drying too quickly so consider using a slow drying bond. In any case, slow drying bonds as a rule of thumb tend to be stronger than accelerated bonds. When dry you can cut to size and run a planer or belt sander over the wide faces.

Answer 3

dove tailing is out of the question if there is any flexibility to the board. Biscuits are out of the question because the ends of wood do not glue together well - all glue will eventually fail.

What you are talking about is finger splicing and to do it yourself requires either a shaper or a router mounted on a table. Then you will need at least one, if not two, router bits an d that can get expensive. Just use a glue that is strong because the finger spliced pieces of wood that you buy for molding at Lowes and Home Depot do not hold well and will easily snap apart.

You might try an overlap, cutting 1/2 the board's thickness with a dado blade (multiple cuts are necessary) and then glue that to another board that you have done the same to. If you can figure out how to scarf the joining end pieces, you are much better off.

Answer 4

I think a dovetail joint would work if there is to be no vertical stress.
(The final 8 ft piece being laid on a flat, solid surface).

Answer 5

Usually called a finger joint

Answer 6

I think you are referring to a FINGER JOINT..

Answer 7

bisquit joiner would also work.

Answer 8

i dunno if your talking about a beam or trim. if your talking about trim its finger joint or if your talking about a beam its glu-lam