rough sill

rough sill

1. In frame construction, the sill, 1 on which the building frame is erected.
2. The wood piece laid across the bottom of a rough opening to act as a base for a window construction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Window openings are just like doors but with the addition of a rough sill. Mark the top of the sill by measuring down from the header.
5 wall framing tips
6 Cover the rough sill area with self-sticking flashing tape.
Install a new front door: we'll show you the techniques that will result in a perfect weathertight installation
And second, measure the height and width of the "rough opening." The rough opening is the width between the trimmer studs and the height between the rough sill and the header.
Replacing old windows: how to put new windows in old places
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