ClipArt ETC
"Frame of a vessel supported by shores." A shore is a "post or beam of timber or iron for the temporary support of something; a prop." -Whitney, 1911

Shores

"Frame of a vessel supported by shores." A shore is a "post or beam of timber or iron for the temporary…

"Shows horizontal shoring while the party walls of the remaining structure are being secured."—Finley, 1917

Horizontal shoring

"Shows horizontal shoring while the party walls of the remaining structure are being secured."—Finley,…