How to Dry Southern Pine Lumber

Southern pine boards contain a lot of moisture. Therefore, the excess water must be removed before the lumber can be used for building projects. This can be done one of two ways: kiln drying or air drying. Kiln drying is expensive, while air drying is free, but it does take time and know-how.

Supplies

• Green southern pine boards


• Wood blocks


• Cement blocks 


• Two by four-inch boards


• One by two-inch slats 


• Tarp

1. Place a pair of cement blocks on the ground. Lay down a block every two feet.


2. Lay a row of two by four-inch pieces of lumber perpendicular to the blocks to create a stacking surface. The pieces should allow for at least a two-inch space between each board when stacked. This allows the air to circulate and prevents warping and rotting.


3. Stack the first layer of pine boards. Across the pine boards lay 1x2-inch slats perpendicular to the pine, and running in the same direction as the orignal 2x4s.


4. Stack the second layer of boards over the slats perpendicularly. The pine pieces will be running in the same direction as the first layer. Slighly offset each boards position for better air circulation.


5. Continue the building process of rows until all pine boards are stacked for drying.


6. Place a final layer of slats across the last layer of pine boards and cover with a tarp.


7. Check to be sure the tarp completely covers the entire pile of lumber.


8. Lay a block of wood on each corner of the tarp to hold it in place.


9. The process will take about six weeks to complete during the spring and summer months. Remove the tarp and check the stack from time to time to make sure the boards aren't warping as they cure. Flip any over that are.