Tongue and groove siding can be installed horizontally or vertically.
In horizontal application, start at the bottom and work up with the grove edges facing downwards to assure a weather-tight wall. Siding up to 6 in. wide can be blind nailed with one casing nail per bearing toe-nailed through the base of each tongue.
Wider siding should be face nailed using two nails per bearing. Nails must penetrate 1-1/2 in. into solid wood (see Figure 5).
In vertical application, start at one corner with grooved edge toward the adjacent wall.
Use a level or plumbline to ensure that the first board is installed vertically. The grooved edge of the first board may have to be trimmed to ensure a flush fit. Siding is nailed to horizontal blocking lines installed between studs or to furring strips (see Wall Construction).
As with horizontal installation, pieces up to 6 in. can be blind nailed and wider pieces should be face nailed.
Table 8. Tongue and Groove Siding Dimensions
|Thickness (in.)||Nominal Width (in.)||Finished Width (in.)|
|11/16||4, 6, 8||3-3/8, 5-3/8, 7-1/8|
|23/32||4, 6, 8||3-3/8, 5-3/8, 7-1/8|
Tongue and Groove Siding Coverage Table
|Nominal Width (inches)||Dressed Width (inches)||Exposed Face Width (inches)||Lineal Feet Factor||Board Feet Factor|