Folding door

Definition and stakes

Portrait of Eugène-Emmanuel Viollet-le-Duc Eugène-Emmanuel Viollet-le-Duc,  How to build a house (1874)

“ Let us begin, then, by drawing a folding-door. We shall make the framing of this door of wood 13⁄4 inch thick. We call the outer upright pieces (Fig. 56) the hanging-stiles; the pieces, A, the meeting-stiles; the horizontal pieces between them, the rails. The stiles and the top and bottom rails shall be each 41⁄4 inches wide, the intermediate uprights, or munton, 2 inches. Now each leaf—deducting 1⁄2 an inch for the rebate, or overlap, in the middle—will be 2 feet wide, since the doorway must have an opening of 4 feet: deducting 41⁄4 in. ”
Source: Gutenberg

Collier's New Encyclopedia (1921)

“ The commonest form of door had the pintle in the middle of the width; so that, as it opened, a way was afforded on each side of it for ingress or egress. Double-margin doors are made in imitation of folding-doors, the middle style being made double with an intervening bead. Sliding-doors are an improvement on folding; they slip into grooves in the partition. A proper-ledged door is one made of boards placed side by side with battens called ledges at the back. ”
Source: Wikisource

Various,  Popular Science Monthly (1885)

“ As a rule, you enter from the front door into a narrow passage-way, with perhaps an internal screen, with folding-doors which are rarely shut, and immediately opposite is the main staircase of the house, so that any one, on entering, not only commands the absolute thoroughfare of the house, but sees everybody who goes up or comes down, by which privacy is materially interfered with, and the whole house is made subject to sudden draughts of cold air, which arc driven up the-well-hole, as it is called, by the opening of the street-door. ”
Source: Wikisource

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