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2. Ladder - Wikipedia

   en.wikipedia.org/wiki/Ladder

   The safest angle for a ladder is 75.5°; if it is too shallow, the bottom of the ladder is at risk of sliding, and if it is too steep, the ladder may fall backwards. This angle is achieved by following the 4 to 1 rule for a ladder placed on a vertical wall: for every four feet of vertical height, the ladder foot should move one foot from the wall.

3. Roof pitch - Wikipedia

   en.wikipedia.org/wiki/Roof_pitch

   Greek: the ridge height is 1 ⁄ 9 to 1 ⁄ 7 the span (an angle of 12.5° to 16°); Roman: the ridge height is 2 ⁄ 9 to 1 ⁄ 3 the span (an angle of 24° to 34°); Common: the rafter length is 3 ⁄ 4 the span (about 48°); Gothic: the rafters equal the span (60°); and; Elizabethan: the rafters are longer than the span (more than 60°). [7]

4. List of roof shapes - Wikipedia

   en.wikipedia.org/wiki/List_of_roof_shapes

   Roof angles are an integral component of roof shape, and vary from almost flat to steeply pitched. Roof shapes differ greatly from region to region, depending on the climate, materials available, customs, and many other considerations. Roof terminology is not rigidly defined.

5. Mansard roof - Wikipedia

   en.wikipedia.org/wiki/Mansard_roof

   A mansard roof on the Château de Dampierre, by Jules Hardouin-Mansart, great-nephew of François Mansart. A mansard or mansard roof (also called French roof or curb roof) is a multi-sided gambrel-style hip roof characterised by two slopes on each of its sides, with the lower slope at a steeper angle than the upper, and often punctured by dormer windows.

6. Fixed ladder - Wikipedia

   en.wikipedia.org/wiki/Fixed_ladder

   Fixed ladders consist of the following components: Rungs: all fixed ladders have rungs, dictated by OSHA Standard 1910.27(b)(1) of no more than 12" (300 mm) on center (measured as the distance from the centerline of a rung to the center line of the next rung), and at 16" (410 mm) clear width.

7. The IRS just announced big tax changes for 2025 - AOL

   www.aol.com/finance/irs-just-announced-big-tax...

   These 5 magic money moves will boost you up America's net worth ladder in 2024 — and you can complete each step within minutes. Here's how. In high-cost cities, the transportation benefit hike ...