I have always found wood structures to fiddly. You end up gluing your fingers to the wood, and even when complete, the parts usually are pretty weak. This technique should help you quickly and easily build wood structures.
First draw the structure to scale on graph paper.
Then take a clip board and put a sheet of wax paper over the graph paper and clip it in place
Cut the wood, and glue it with wood glue to the wax paper. Let this piece dry since it will anchor all other parts of the construction.
Build from one corner out and complete the structure in the direction shown on the image. Glue each part to the other parts and the wax paper.
When the whole piece is completed, reinforce all joints with a spot of glue. Give this a few minutes and then dab off the excess with a damp paper towel.
Let the glue set for about an hour. Then carefully peal off the wax paper.
Sand rear of the part and use a hobby knife to trim any dry puddles of glue that might have attached to the wood.
There you have it. My way of building quick and easy wood structures.
Hope you like.