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May 06, 2009
One of the foundations of furniture making is starting with lumber that is four square, meaning that all four sides are square (90 degrees) to each other.
Preparing rough cut lumber is critical when building any project because it will effect how joints come together, how doors will hang, etc.
There are eight steps to getting lumber to four square:
Step 1: Cross cut material to rough length
Step 2: Rip material to rough width
Step 3: Flatten one face flat
Step 4: Square on edge to the newly flatten face
Step 5: Plane the second face parallel to the first
Step 6: Rip to finished width
Step 7: Square one end
Step 8: Cut the other end to the finished length.
The video goes into detail on ways to complete each of these steps so you can work with lumber that's straight and true.
Leave a comment below if you have any questions or if you have a different process in getting to four square with your lumber, share it with others.