Alternating Tread Device Vs Ships Ladder

Vertical rise between treads is generally around 9.

Alternating tread device vs ships ladder.

Alternating tread ladder with platform. The dimensions of ship ladders vary based on available space so they are always custom fabricated. Alternating tread ladder crossover 2 alternating tread ladders connected by a platform industrial. Precision s aluminum alternating tread stair is an alternative to a traditional ships stair.

All alternating tread ladders have a 350 pound capacity. The riser height is reduced and the run is longer than a typical ship ladder but the steps alternate. These stairs allow the user to descend face forward giving a clear view of the floor below. Alternating tread stairs are preferred in many industrial and commercial applications by achieving vertical access with a shorter horizontal span than traditional stairs and greater functionality than traditional ladders.

Let s look at how osha defines stairways alternating tread stairs ship stairs ship ladders and fixed ladders to understand the difference. How do these devices differ from each other. Available in steel. But for the purposes of this answer let s assume that the stair does have the same number of treads on both sides.

Alternating tread ladders available in a variety of sizes. 76 sanderson ave lynn ma 01902 call. This is an alternating tread stair. Aluminum ship ladder with platform.

This stair saves space and you can go down face forward. The width of ship ladders is usually 24 and the tread depth is 6. Aluminum crossover ships ladder footprint 2 ships ladders connected by a platform alternating tread ladder calculate space requirements at various heights and angles. 800 244 6231 or 781 623 7970 fax for canada call today.

Ships ladders ship stairs ship ladder stairs alternating tread stairs fixed ladders are all terms that can get confused and sometimes used interchangeably. Most alternating tread ladder stairs have the same number of treads on each side which isn t absolutely necessary and i suspect it s based more on aesthetics than on construction or comfort. Since the treads alternate this stair is not considered to be as safe as a standard ship ladder or spiral stair.