Austin Wholesale Decking Supply - Quality Decking & Fencing Supplies Since 1990

WESTERN RED CEDAR

( Thuja plicata )

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Sizes and Spans of Western Red Cedar Decking

Western Red Cedar decking is available in a selection of thicknesses, widths and lengths as shown in the table below.

Maximum spans for decking shown in the table are based on a continuous beam with two equal spans and a concentrated load of 220 lb at the center of one span (see illustration). The true span of the decking board is used, taking into account the thickness of the supporting joist beneath it. Wet end- use conditions and unseasoned (green) lumber sizes are assumed.

Thickness (in.)	Width (in.)	Grade Category (in.)	Span (in.)
1-1/4	4	All clear grade categories	16
1-1/4	4	All knotty grade categories	12
1-1/4	6	All clear and knotty grade categories	16
2	4	All clear and knotty grade categories	24
2	6	All clear and knotty grade categories	24

Figure 1. Deck Spans

To help figure the amount of decking needed for a project, use the following linear footage calculator:

**To Cover 100 Square Feet of Deck**
Nominal Size (in.)	Linear Feet
1-1/4 x 4	325
2 x 4	325
1-1/4 x 6	211
2 x 6	211

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