Installation Guide
Siding Installation Guide / v20190507US 8
Expansion and Contraction table of values for North America,
Canada, Australia and Asia (between 20 N and 20 S in latitude)
3 8 9 10 12 13 13 16 18
32 1/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16 5/16
Gap
(in)
41 1/16 2/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16
50 1/16 2/16 2/16 2/16 2/16 2/16 3/16 3/16 3/16
59 1/16 1/16 1/16 2/16 2/16 2/16 2/16 2/16 3/16
68 3/64 1/16 1/16 1/16 1/16 1/16 2/16 2/16 2/16
77 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
86 3/64 3/64 3/64 3/64 3/64 1/16 1/16 1/16 1/16
Installation Temperature (Farhenheit)
Length (Feet)
Expansion and Contraction Values
NewTechWood siding boards will experience expansion and contraction with changes in
temperature. Expansion and contraction are most signicant where extreme temperature
changes occur. Fastening the deck planks according to the gapping requirements noted
in the following table accommodates for this movement.
3 8 9 10 12 13 13 16 18
14 2/16 4/16 4/16 5/16 6/16 6/16 6/16 7/16 8/16
Gap
(in)
23 1/16 3/16 4/16 4/16 5/16 5/16 6/16 7/16 7/16
32 1/16 3/16 4/16 4/16 5/16 5/16 5/16 6/16 7/16
41 1/16 3/16 3/16 3/16 4/16 4/16 5/16 6/16 6/16
50 1/16 2/16 3/16 3/16 4/16 4/16 4/16 5/16 5/16
59 1/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16 5/16
68 1/16 2/16 2/16 2/16 3/16 3/16 3/16 4/16 4/16
77 1/16 2/16 2/16 2/16 2/16 2/16 3/16 3/16 3/16
86 1/16 1/16 1/16 2/16 2/16 2/16 2/16 2/16 3/16
95 3/64 1/16 1/16 1/16 1/16 1/16 2/16 2/16 2/16
104 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
Installation Temperature (Farhenheit)
Length (Feet)
Expansion and Contraction table of values for Europe, Russia,
Northern Asia (between 40 N and 20 N in latitude)