|Carpentry for Vocational Schools - A Teachers Handbook|
a) Erecting Wallframes: - When the walls are ready to be erect, they should be firm and strong enough to take the weight of the ceiling and roof construction without loosing their shape. Before erecting the wallframes, mark the correct place for fitting them on the floor joists with the aid of a string. Start with the outside frames. Use a spirit level or plumb bob to set them correctly vertical. Fit enough braces to hold them in place. Afterwards fit the inside walls.
b) Joining wallframes at the corner:
- To join wallframes at the corner we may use the halving joint or the butt joint. In both cases we have to nail the corner.
- Butt joint:
- Halving joint: