Cedar's natural preservatives protect against decay and insects which means no harmful chemical treatment is required. For those concerned about the environment, renewable and biodegradable Western Red Cedar is the only choice. No warranty can equal Cedar's track record and consistent performance. Above all, the beauty of Regal Knotty Cedar decking cannot be matched by man made building materials.
Interfor's commitment to producing consistent and high quality Western Red Cedar products is reflected in its Regal Knotty Decking. Starting with a reliable and consistent fibre supply, Interfor is able to offer customers products that meet superior standards from order to order. It is the highest grade of Custom Knotty Western Red Cedar available. Graded on all four sides and is guaranteed wane free on one face.
Interfor's Regal Knotty Decking is the product of choice for builders or homeowners seeking to add the beauty and prestige of a Cedar deck at an affordable price.
Interfor's Regal Knotty Decking meets WRCLA Custom Knotty standards.
Standards that set Regal Knotty Decking apart from the competition:- Knots are sound and tight, allowing a maximum of two not firmly fixed knots per 12 lineal feet (NFF knots of ½ max size are allowed)
- Maximum knot size: 2x4 = 2"; 2x6 = 2 7/8"
- Holes are not permitted
- Wane is strictly limited to maximum 1/3 thickness, 1/3 width full length and allowed on the reverse face only
| Nominal Sizes (inches) | Net Sizes (inches) | Dressing | Seasoning | Pieces per package | Lengths |
|---|---|---|---|---|---|
| 2 x 4 | 1 9/16 x 3 9/16 | S4S | Green | 208 | 8 - 20' ELO |
| 2 x 6 | 1 9/16 x 5 9/16 | S4S | Green | 128 | 8 - 20' ELO |






