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Among its basic uses are marking common, hip, valley and hip, or valley jack rafters, laying out stair stringers, determining and marking angles, and making square cuts on boards. Common lines made using a speed square include perpendicular cut marks and Angles definition of an angle for roofs, stairways, and decks. The tool uses a 0° reference.
Stringers on open-sided stairs are called "cut stringers". Tread rise: The distance from the top of one tread to the top of the next tread. Total rise: The distance the flight of stairs raises vertically between two finished floor levels. Winders: Winders are steps that are narrower on one side than the other.
In two-story construction, openings are left in the floor system for a stairwell, in which stair risers and treads are most often attached to squared faces cut into sloping stair stringers. [citation needed] Interior wall coverings in light-frame construction typically include wallboard, lath and plaster or decorative wood paneling. [citation ...
The footbridge is an intact representative example of a standard Warren Truss trestle footbridge with stairway, Hardie Board long plank timber deck and channel iron stair stringers. The barracks, although modified still demonstrates the key characteristics of standard accommodation for railway staff constructed during the early 20th Century. [3]
Two scuppers cut into either side of this outdoor stairwell prevent water from building up and making the stairs slippery. A scupper is an opening in the side walls of a vessel or an open-air structure, which allows water to drain instead of pooling within the bulwark or gunwales of a vessel, or within the curbing or walls of a building.
A grid deck uses beams and diaphragms as the supporting structure. The supporting system of a grid deck is analyzed using a grillage analysis. A slab deck is one where the deck is analyzed as a plate. If the slab has a stiffness that is different in two directions (at right angles), then the deck is known and analyzed as an orthotropic deck.
In between the posts, two 2x4s are attached to the posts with screws for the best connection. The lower board is placed 3.5" from the top of the finish deck to the bottom of the board. The top board is placed with the top at 35" from the deck. Then the vertical 2x2 pressure treated wood balusters are installed spaced regularly every 3.5". Then ...
The footbridge with stairs leading down the platforms, has been recently covered and its surfaces recently tiled. However its superstructure, consisting of a riveted steel " Warren Truss" with angle iron trestles and channel iron stair stringers and compressed fibre cement decking, is original 1910s fabric and is typical of such footbridges ...
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