buying good lumber

23
BUYING GOOD LUMBER FAC TORS TO BE CONSIDERED IN CHOO SING LUMBER

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Page 1: Buying good lumber

BUYING GOOD LU

MBER

FACTORS TO BE CONSIDERED

IN CHOOSING LUMBER

Page 2: Buying good lumber

1. START OUT THICK

Page 16: Buying good lumber

1USE THE RIGHT TYPE OF SANDPAPER FOR THE JOB.

Page 17: Buying good lumber

KINDS OF SAND PAPER

Aluminum oxide is the most popular sandpaper for woodworking, and it also works well on metal and cured finishes.

Garnet is often used on bare wood. It wears quickly, but costs less than other sandpapers.

Silicon carbide is ideal for smoothing metals, plastics and joint compound. It is also used to sand between coats of paint or finish, although it is not ideal for wood.

Ceramic sandpaper can be used on wood and is usually found on belt sanders.

Page 19: Buying good lumber

2. Select 3 grades of your sandpaper: coarse, medium and fine. A sandpaper's grade will be indicated on the product, measured in "grit."

Coarse-grade sandpaper has grit of 40 to 80, medium-grade has 100 to 120, and fine-grade has 150 to 220.

Coarse-grade paper is used to scratch away larger imperfections, and finer grades are used in the last stages of detail

Grit can be as high as 600, but extra-fine sandpaper is not always necessary

Page 21: Buying good lumber

3Choose a closed-coat sandpaper for soft woods

and open-coat paper for metals and hardwoods. "Closed-coat" means that the paper is more densely covered in abrasive material than "open-coat" products

Page 22: Buying good lumber

2 METHOD OF SAND WORK PIECE

1Wear goggles and a dust mask if the project is likely to kick up a lot of dust.

Page 23: Buying good lumber

2Sand the work piece by rubbing the coarse-grade sandpaper along it, using an equal amount of pressure throughout.