One thing that is important to build in the woodworking shop is a table frame to use as a workbench or to attach some electric tools to the top of the table. In my case, I want one to make a homemade table saw from a skill saw and to make a router table from a plunge router, both in the same table. I suppose it would be better to make two tables, one for each tool, but when I made this I thought I could make a double sliding fence to use with both tools.
To make this workbench frame I wanted to cut some notches with my saw to join the legs and the cross members. This workbench frame consist of four legs, a couple of apron rails between each pair of legs and some reinforcements inside the corners. For the legs I will use four 7×7 treated posts (I found them cheaper than the untreated lumber) and a 3×23 beam from which I will cut some 3×7.
As you can see in the plans and in the pictures I will use half lap wood joints to join the apron rails to the legs. Yes, this is a heavy table, but steady, too.
The sides of the workbench frame are attached to the legs with glue and some screws. In the garage where I have my workshop there are a lot of temperature and humidity changes, so I won´t use the usual white carpenters glue. I need some kind of glue suitable to use for projects that will be in the exterior, so I use a polyurethane glue that will fill the gaps, too.
There you can see some of the battles I have when I record my YouTube videos.
It would be great to make a detachable frame, but I think it is better to make it with very strong joints to make it steady and stable. Polyurethane glue expands and fills the gaps. Some will pour out of the joint, but it is very easy to cut when it dries.
In the end, the workbench frame structure is not very nice, but because it is to use in my woodworking shop I didn’t want to put a lot of work to make perfect and nice joints. The only thing I was worried about is to make it steady and stable, and to leave the top of the frame as perfect as possible to have a perfectly level top board when I put one.