Splicing Plywood Sheets

Exterior building products include t 111 siding.

Splicing plywood sheets.

The special 16 foot plywood had been made that long by joining two standard 8 foot sheets with a joint that looked pretty vulnerable and weak. The top piece has the best side up the bottom best side down. Naturally necessity is the mother of invention so when faced with this problem i decided to splice. The panel edges often look and fit together like a tabletop jigsaw puzzle.

Mark 4 inches on the top piece and then with a belt sander and coarse sandpaper sand. Align the edges of the two plywood panels to be joined the table or work surface and the clamping block so they are precisely. Scarf joints have actually been around for a. Plywood is made of layers of thin sheets of veneer in alternating wood grain directions which increases the strength and stiffness of the final panels while providing superior dimensional.

It has vertical lines spaced about 8 inches apart to lend an. The width of the butt block should be a minimum of 16 times the thickness of the plywood you are using. Using common woodworking tools to join plywood panels with an easy to make and assemble puzzle joint that fits with machine shop precision. For instance to get an 8 1 scarf on half inch plywood they would be offset 4 inches.

What is a puzzle joint. A butt block joint is made by edge gluing two pieces of plywood together and adding a backer block to one side of the seam. As shown in the sketch the two plywood panels to be scarf joined are aligned on the edge of a flat table or a sheet of 3 4 plywood. Although a butt block joint is a fast way to joining plywood it does have many disadvantages.

I learned that this joint was a scarf sometimes called a splice or matching bevel and is quite a common method of joining lumber and plywood. It s real wood even though it has layers like plywood. Shop tip splicing plywood sheets xxx nothing is more aggravating than running out of plywood late on a sunday afternoon with your project nearing completion. In a puzzle joint the mating edges of plywood panels are formed with complementary puzzle like contours.

By rowerwet wed feb 12 2014 10 49 am while a scarph joint looks the best it takes away from the length of both panels puzzle joints also loose length a biscuit joint the payson joint or a plain old butt splice with a block or strap on the inside loose nothing. Splicing sheets of plywood. I have scarfed half sheets of plywood but not a whole sheet. The upper panel is set back from the lower panel the distance of the scarf joint.