Radially sawn Shiplap provides a stylish and strong alternative to traditional softwood or manufactured cladding systems. Shiplap cladding is profiled from back sawn bevelled edge boards that overlap to produce a continuous vertical or horizontal cladding system. Radially back sawn boards can be identified by the alignment of growth rings, which are basically parallel to the broad face of the board. External Shiplap cladding is supplied dressed and seasoned in a range of widths.

Shiplap cladding boards are generally sawn from naturally durable regrowth hardwoods such as Silvertop Ash, Southern Mahogany or Yellow Stringybark (ie. Class 2 durability). Other species (including Class 1 durability) may also be available on request.


NOTE: Silvertop Ash is one of the approved species for use in “high fire danger” areas by Building Control Comm. Practice Note No. 46 (Dec. 2001).

Radial Shiplap cladding is supplied as a series of dressed 19mm thick boards with “V” shaped tongue and rebate joints (see Figure 1 above). Radially sawn Shiplap boards overlap and have an effective cover approx. 70mm, 90mm or 110mm but wider and other conventionally sawn profiles may also be available from Radial Timber Sales as a special request

Our Products

Radially sawn Shiplap provides a stylish and strong alternative to traditional softwood or manufactured cladding systems. Shiplap cladding is profiled from back sawn bevelled edge boards that overlap to produce a continuous vertical or horizontal cladding system. Radially back sawn boards can be identified by the alignment of growth rings, which are basically parallel to the broad face of the board. External Shiplap cladding is supplied dressed and seasoned in a range of widths.

V-Joint Shiplap Sample Illustration

V-Joint Shiplap

V-Joint Shiplap boards overlap and have an effective cover approx. 45mm, 70mm, 90mm or 110mm

Secret Fixed Shiplap Sample Illustration

Secret Nailed Shiplap

Secret Fixed Shiplap cladding is supplied as a series of dressed 19mm thick boards with square shaped tongue and rebate joints. Radially sawn Shiplap boards overlap and have an effective cover approx. 70mm. It is designed so it can be secret fixed