There are a total of eight species of pangolin on our planet. Pangolins, also known as scaly anteaters, are unique creatures that are covered in hard, plate-like scales. They are insectivorous (feeding on insects) and are mainly nocturnal.
Balloon framing, framework of a wooden building in which the elements consist of small members nailed together. In balloon framing, the studs (vertical members) extend the full height of the building (usually two stories) from foundation plate to rafter plate, as contrasted with platform framing, in which each floor is framed separately.
Weight of Building Materials. The weight of materials for a DIY small project, hobby greenhouse is probably not going to be a deciding factor, but comparatively, wood and rebar are relatively heavy and PVC pipe is extremely light. Strength of Building Materials. 1  Lumber frame construction is the norm for most construction projects that are 3 stories tall or less and can be designed to meet most building requirements. 2  A greenhouse frame constructed from rebar could also be very strong if the framework were welded and used lots of cross bracing.