Riverhead Building Supply has one of the largest selections of cedar boards and wood planks in the region. We carry clear, construction, and pattern board and lumber products. View our variety of options below. If you are looking for something special, give us a call. Many additional items are available by special order.
Clear Cedar Boards 1X S4S A & BTR KD 
Center Match Boards 1X T&G CM KD – Clear & Const Cedar 
Shiplap Boards 1X KD Shiplap – Const Cedar 
Clear Cedar Siding KD Vertical Grain Bevel Siding 
Clear Cedar Balusters 2X2 S4S Clear Cedar 
Clear Cedar Dimensional 2X S4S Clear Cedar 
Clear Cedar Decking 5/4X S4S A & BTR KD 
Clear Cedar Posts 4X4 S4S and 6X6 RS Cedar Posts 
Cedar Decking 5/4 STK KD Cedar Decking 
Construction Cedar 1X S1S KD Rough Sawn; 2X S4S KD 
Construction Cedar Posts 4X4, 4X6 and 6X6 Const. Cedar posts