This is my mod for extra options to build your base. I have more things planned for future updates.

MASONRY
-Added Mansonry as a new skill, it can be used to build strong walls, fences, door frames or window frames.
-Masonry uses concrete and bricks, the menu requires a Mason's Trowel to show up.
-Find the masonry books and read them for bonus XP multiplier.
-New magazine teaches how to build a kiln and make your own bricks using clay.

CARPENTRY
-Added the option to craft painted crates (they look better than the simple color overlay when you paint existing crates).
-Added vegatables/fruits display counter.

METALWORKING
-Added door frame and stairs.
-Metalworker profession knows how to build these.
-New magazine teaches how to build metal stairs.

REPAIRS
-Added the option to repair damaged doors, walls and broken windows.
-Repairing these require some of the materials used to craft them.
-I'm still improving this system, right now it does not check if a door or wall is made of wood or metal for example.

SPECIAL
-Hand Trucks! Be careful as you can't run or fight while pushing these, drop if you're in danger!
-You can't carry a hand truck over tall fences, through a window or when climbing a rope.
-Hand Trucks can only carry large items (weight 1.0 or more), if you want to carry smaller items put them inside a bag.