c. Stepladder. Use a stepladder (Figure 4-11) on flat surfaces where secure footing is
obtainable. A stepladder is available in lengths up to 20 feet. Ensure that the brace is extended and
locked when erecting a stepladder.
Figure 4-11. Stepladder
Figure 4-10. Extension ladder
d. Trestle Ladder. A trestle ladder consists of two single ladders that are hinged at the top to
form an A-shaped device. Erect two trestle ladders and extend planking or an extension platform
between the rungs of the two ladders to form a painter's trestle (Figure 4-12, page 4-8).