A type of technical drawing is used to fully and
clearly define requirements for engineered items.
Engineering drawing (the activity) produces engineering
drawings (the documents). More than just the drawing of
Balloon framing is a method of wood construction also known as "Chicago construction" in
the 19th centu
Wood is that fibrous substance which compose the trunk & the branches of the tree & the
Classifications of Wood
Mode of Growth
Exogenous- outward growing trees which are most preferred for lumbering
Endogenous- inside growing tree which are not
Plastics & Synthetics
The term synthetics denote materials made with human intervention as opposed to
o Plastic refers to any group of synthetic or natural organic materials that
may be shaped when softened and then hardened.
Paint is the most economical finish and is available in virtually any color.
- a mixture of a solid pigment suspended in a liquid vehicle and applied as a thin,
usually opaque coating to a surface for protection and decoration
Characteristics of Metals
Good conductors of heat and electricity. They warm up quickly and lose heat quickly.
Has great strength
Amplifies sound if used extensively as a cladding
Durable and pest-resistant
Has a tendency to corrode
Plywood serves as an effective sheathing
for both interior and exterior walls.
Interior Plywood is intended for use in
interior applications where a high quality
aesthetic finish is required. It must not be
used in exposed, damp or wet con
Stone and Masonry
Masonry refers to stone, brick, concrete or tile building units that are usually mortared
Masonry tends to be strong in compression when in block form rather in planar
Rock is stone before it is moved from where it is found.
Wood treatment is done to prolong the life of wood.
Chemicals are used to as wood preservatives.
The chemical preservatives can be classified into to three broad
categories: water-borne preservatives, oil-borne preservatives,
Visit any hardware/Wilcon Depo/Home
Depo take pictures of the different
building materials with you on it to
authenticate the fact of your visit.
Draw to scale the following:
1. Door (main and T&B) (front view)
2. CHB (perspective)
3. T&G 4 wooden floorin