subject: Top Ladders In The World In One Country Online! [print this page] It is obviously that metal ladders, usually made of aluminum, require much less maintenance than wood ones. Wood ladders should be treated with two coats of clear sealer or varnish. Hinges and other moving hardware should be lubricated periodically as well. You should treat metal parts with clear varnish or other rust proofing material periodically, if they are not rustproof.
Standards established by the American National Standards Institute (ANSI) and required for ladder identification are:
Type I, industrial, duty rated at 250 lbs. It is used for tradesmen, construction, maintenance and industrial needs.
Type IA, extra-heavy-duty industrial, duty rated at 300 lbs. Only for industrial needs.
Type II, commercial, duty rated at 225 lbs. It is used for handymen, light maintenance and light mechanics.
Type III, duty rated at 200 lbs. Only for household needs.
Each ladder should have a label with its rating, size and maximum standing height.
The right ladder
While selecting a ladder, it is important to consider a few major points: the kind of activity involved, the demands of the application, the height of the ladder must reach so the climber may work from a safe position, and the basic material the ladder is made from.
Activity
If you need to paint the outside walls and ceilings, a stepladder is the best decision for you. An extension ladder is usually used for external work. If the job requires more effort than usual, or if you have to spend more time on the ladder, pay attention to a platform ladder instead of a stepladder.
Aplication
Each ladder is designed to hold a certain amount of weight, which includes the user, clothing and tools. Therefore, a ladder used daily in a building industry should have more rigid construction than a ladder used a few times a year for light household work.
Despite a higher price of a heavier-duty ladder, it is better matched to commercial or industrial use, as it is used more frequently. Commercial-rated ladders are engineered for the handyman, painter, mechanic and for general use. Industrial-rated ladders are for the heavy climber, for daily use. Being stable and strong, they are intended for contractors, maintenance and industrial work.
It is reasonable for the homeowner to choose more economical ladder, as it is used by him once in a while. Such kind of ladders is economical, lightweight and dependable for around-the-house use. They represent an excellent value.
You can easily find a color-coded label on every ladder which displays its duty rating.Little giant ladder
Height
It is important to consider the height of the maximum safe working position on the ladder. In case of stepladders, they should be high enough not to let the user stand above the second step from the top. There is a label on the first step from the top warning the user not to stand on that step. In case of extension ladders, the user should stand no higher than four rungs from the top.
by: Mrgarett Mchle
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