Cedar Lap Siding Grades

Clear and knotty or stk.

Cedar lap siding grades.

C and better clear. This is an architect grade. Near clear has very few very tiny knots and a median price point for the knot so fond. For specific western red cedar siding grades please visit the siding grading page.

Lap sidings can come in a variety of different sizes patterns and grades. Western red cedar siding grades. Appearance grades use letters a through d with a being the highest grade. Lap sidings are normally supplied in a variety of patterns either green unseasoned or dry in clear or knotty grades and with a smooth or saw textured face.

Highest grade fewest knots is the top of the line wood. This is the rarest. Allow a 1 8 inch expansion gap between pieces if the siding is air or kiln dried. There are also two other terms under appearance grade cedar.

Cedar is also graded based on appearance which is called appearance grade or select lumber. Larger overlaps can be used on wider bevel sidings such as 10 and 12 in pieces see wrcla publication installing cedar siding for more information. Clear grades are manufactured to order. Commonly available sizes are 1 x6 1 x8 and 1 x10.

Channel siding is normally supplied in unseasoned knotty grades. For horizontal applications start with the bottom course and work up with the channels pointing upwards. Western red cedar exterior siding or cladding comes in a spectrum of patterns including the one that is just right for your home s style and your budget. 4 3 1 2 2 1 2 4 80 1 60 6 5 1 2 4 1 2 2 67 1 33 8 7 1 2 6 1 2 1 85 1 23 10 9 1 2 8 1 2 1 41 1 18 12 11 1 2 10 1 2 1 14 1 14.

Do not nail through overlaps. Cedar lap siding grades clear cedar. This siding type can also be supplied kilnd dried or green unseasoned. Lap siding can be installed horizontally or vertically.