Standard Sizes of Lumber

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) .1x3 is 13/16x21 F; 1x4 is 13/16 x31 F; 1x6 is 13/16x51 F.

Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) ..1x3 is 13/16x21 F; 1x4 is 13/16 x3i F; 1x6 is 13/16x5i F.

Cypress and Tupelo (So. Cypress Mfrs. Ass'n) 1x3 is 13/16x21 F; 1x4 is 13/16 2(31 F; 1x6 is 13/16x5} F.

Douglas Fir, Western Hemlock, Cedar, and Spruce (West Coast Lbr. Mfrs.

Ass'n) 1x3 is 13/16x21 F; 1x4 is 13/16 x31 F; 1x6 is 13/16x51.

Oak (Oak Flooring Mfrs. Ass'n) .13/16x11, 2, or 21 F; 13E11 or 2 F.

Maple, Beech, and Birch (Maple Flooring Mfrs.

Ass'n) Thicknesses — 1, 1, 1, 13/16, 1 1/16, 1 5/16, 1 11/16.

Faces-4, 1, 11, 2, 21, 31, 4, 41.

Hemlock and Tamarack (Nor. Hem. & Hdw. Mfrs.

Ass'n) 1x4 is 13/16x31 F; 1x6 is 13/16 x51 F.

Idaho White Pine, Western Pine, Fir, and Larch (Western Pine Mfrs. Ass'n) . 1x4 is 1x31 F; 1x6 is 1x51 F; 1x8 is 1x7/ F.

Gum and Yellow Poplar (Nat. Hardwood Lbr. Ass'n) .1x3 is 13/16x21; 1x4 is 13/16x 31 F; 1x5 is 13/16x41 F; 1x6 is 13/16x51 F.

Ceiling (INCH) Woods Thickness and Width (Inches) White and Norway Pine (Nor. Pine Mfrs. Ass'n) 1x4 is 1x31 F; 1x6 is 1x51 F. North Carolina Pine (North Car. Pine Mfrs.

Ass'n) 13E4 is 1x31 F; lx6 is /x51 F.

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) 1x4 is 11/16x31 F; 1x6 is 11/16 x51 F.

Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) 1x4 is 11/16x31 F; 1x6 is 11/16 x5} F.

Idaho White Pine, Western Pine, Fir, and Larch (West. Pine Mfrs. Ass'n) 1x4 is 1x31 F; 1x6 is 1x51 F; 1x8 is 1x71 F.

Redwood 1x4 is 1 3/16x31 F; 1x6 is 13/16x51 F.

Gum (Nat. Hdw. Lbr. Ass'n) 1x3 is 11/16x21 F; 1x4 is 11/16 x31 F; 1x5 is 11/16x51 F; 1x6 is 11/16x51 F.

Yellow Poplar (Nat. Hdw. Lbr. Ass'n) Same as Flooring.

Tongues and grooves in inch Ceiling are usually of same dimensions as in inch Flooring. Ceiling is also often made in so-called thicknesses of 1, 1, and inch, corresponding to dressed thicknesses of 5/16, 7/16, and 9/16 inch, respectively.

Partition (INCH) Woods Thickness and Width (Inches) White and Norway Pine (Nor. Pine Mfrs. Ass'n.) 1x4 is 1x3/ F; 1x6 is 1x51 F. North Carolina Pine (Nor. Car. Pine Mfrs. Ass'n) . 1x4 is 13/16x31 F; 1x6 is 13/16 x51 F.

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) 1x4 is ax31 F; 1x6 is 1x51 F. Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) . . Same as above.

Cypress and Tupelo (So. Cypress Mfrs. Ass'n) Same as above.

Douglas Fir, Western Hemlock, Cedar and Spruce (West Coast Lbr. Mfrs.

Ass'n) 1x4 is 11/16x31 F; 1x6 is 11/16 x51 F.

Hemlock and Tamarack (Nor. Hem. & Hdw. Mfrs.

Ass'n) 1x4 is 13/16x31 F; 1x6 is 13/16 x51 F.

Gum and Yellow Poplar (Nat. Hdw. Lbr. Ass'n) Same as Flooring.

Drop SIDING (INCH) Woods Thickness and Width (Inches) White and Norway Pine (Nor. Pine Mfrs. Ass'n) 1x4 is 25/32x31 F; 1x6 is 25/32 x51 F; 1x8 is 25/32x71 F.

North Carolina Pine (Nor. Car. Pine Mfrs. Ass'n) .1x4 is 1x31 F; 130 is /x51 F.

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) Same as above. Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) Same as above. Cypress and Tupelo (So. Cypress Mfrs. Ass'n) 1x4 is /x3/ F; 1x6 is 1x51 F; 1x8 is 1x71 F.

Douglas Fir, Western Hemlock, Cedar and Spruce (West Coast Lbr. Mfrs.

Ass'n) 1x4 is /x31 F; 1x6 is 1x51 F; 1x8 is 1x7 F.

Hemlock and Tamarack (Nor. Hem. & Hdw. Mfrs.

Ass'n) 1x4 is 13/16x31 F; 1x6 is 13/16 x51 F; 1x8 is 13/16x71 F.

Northern Hardwoods (Mich. Hdw. Mfrs. Ass'n) 1x4 is 13/16x31 F; 1x6 is 13/16 x51 F.

Idaho White Pine, Western Pine, Fir and Larch (West. Pine Mfrs. Ass'n) 1x4 is 1x31 F; 1x6 is /x51 F; 1x8 is 1x7/ F.

Redwood 1x4 is 1 3/16x31 F; 1x6 is 13/16 x51 F; 1x8 is 13/16x71 F.

Yellow Poplar (Nat. Hdw. Lbr. Ass'n) 1x4 is 1x31 F; 1x5 is 1x41 F; 1x6 is /x51 F.

Finish S-1-S OR S-2-S S-1-S = Surfaced one side; S-2-S = Surfaced two sides.

Woods Thickness White and Norway Pine (Nor. Pine 1.:rs. Ass'n) 1" is 25/32"; 11" is 1/"; 11" is 11"; 2" is 11".

North Carolina Pine (Nor. Car. Pine Ass'n) 1" is 13/16"; 11" is 1 1/16"; 11" is 11"; 2" is 1/".

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) 1" is 13/16"; 11" is 1 1/16"; 11" is 1 5/16"; 2" is 1/".

Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) Same as above. Cypress and Tupelo (So. Cypress Mfrs. Ass'n) 1" is 13/16"; 11" is 1 1/16"; 11" is 1 5/16"; 2" is 1k".

Douglas Fir, Western Hemlock, Cedar and Spruce (West Coast Lbr. Mfrs.

Ass'n) 1" is 1"; 11" is 1 1/16"; 11" is 1 5/16".

Hemlock and Tamarack (Nor. Hem. & Hdw. Mfrs.

Ass'n) 1" is 13/16". Idaho White Pine, Western Pine, Fir and Larch (Western Pine Mfrs. Ass'n) . 1" is P.

Redwood 1", 1k", 11", and 2" are 3/16" scant for S-1-S and 1" scant for S-2-S.

Gum and Yellow Poplar (Nat. Hdw. Lbr. Ass'n) 1" is 13/16".

Finish S-1-E OR S-2-E S-1-E = Surfaced one edge; S-2-E = Surfaced two edges. Woods Widths White and Norway Pine (Nor. Pine Mfrs. Ass's) ... .4° is 31"; 6" is 51".

North Carolina Pine (Nor. Car. Pine Mfrs. Ass'n) .4" is 31"; 6" is 51"; 8" is 71"; 10" is 9/"; 12" is 11".

Longleaf Pine (Ga.-Fla. Sawmill Ass'n) 4" is 31"; 6" is 51"; 8" is 71"; 10" is 91"; 12" is 111".

Longleaf and Shortleaf Pine (Yellow Pine Mfrs. Ass'n) Same as above when S-4-S. Cypress and Tupelo (So. Cypress Mfrs. Ass'n) 4" is 31"; 6" is 51"; 8" is 71"; 10" is 91"; 12" is 111".

Douglas Fir, Western Hemlock, Cedar and Spruce (West Coast Lbr. Mfrs.

Ass'n) 4" is 31"; 6" is 51"; 8" is 71"; 10" is 91"; 12" is 111".

Hemlock and Tamarack (Nor. Hem. & Hdw. Mfrs.

Ass'n) 4" is 31"; 6" is 5i". Idaho White Pine, Western Pine, Fir and Larch (West. Pine Mfrs. Ass'n) i" scant.

Redwood i" scant.

Gum and Yellow Poplar (Nat. Hdw. Lbr. Ass'n) Same as Cypress and Tupelo.