09/06/2025
Let’s talk Joinery!
I’ve upgraded my joinery to Mortise and Tenon joints! More specifically Festool Domino Joints. As far as I know, I have had a low rate of failure, however I am working to push that rate to zero.
When I started I would use V-Nails, then upgraded to biscuit Joints, and also tried spline Joints. What I’ve come to find out in 13 years of making frames is that the most important factor is the dryness of the wood, next is the perfection of the miter, and the last being the joint itself, and I’ve really dialed in all three of these aspects it does take longer to join each frame but I don’t have a problem with that. The frames can be dry fitted and still hold together as if they were glued, which I’m positive will provide superior strength. There is literally no flex in these frames, whereas even biscuits flexed a little. Further more, I’ve been the back side of the frames for years now, and I’m adding an additional seal to it with red quick clay, and hypothetically that should make our frames even more moisture proof, thus increasing the longevity even further.
The truth is that there will rarely be a frame that doesn’t crack no matter the quality. If you go to any museum you will find frames that have checked, and been repaired and checked again. Checking is the technical name for when two glued pieces of wood cracking.
Other contributing factors for checking:
#1: dropping or stressing the miters. One bad fall can compromise the strongest of joints.
#2 Stacking the frames flat can stress the miters and ruin the bond. People often transport artwork in their cars flat stacked with moving blankets in between when doing local shows. Very bad practice. Frames should always be stored vertically or leaning against a wall, or in an artwork storage.
#3 extreme humidity and temperature changes through out time. The wood though dried and shaped and cut up is actually still alive and because it is cellulose, it is like a sponge and changes shapes. The more it changes shape, the more it compromises the joints. Places like Arizona Colorado, Wyoming are the worst. Generally desert places as well.
To be continued in the comments: