Double floor

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(Arch.) a floor in which binding joists support flooring joists above and ceiling joists below. See Illust. of Double-framed floor.

See also: Double

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
An oversized bolt-catch, flared floor plate, paint dox matrix and tool-less disassembly with double floor plate safety release tabs comlete the feature list.
Construction of phase one of the Agrarian Reform Building in Shebin El Kom comprising a double floor & an external fence.
From an airy interior with ample head and legroom for three adults across the back, to the large boot with double floor, there's plenty of flexibility.
The Icon has a double floor at the back as well which is useful for both concealing items as well as offering additional load bed if needed.
And there's still a double floor, making the boot easy to load, and the passenger seat backrest can be folded over to accommodate long items.
Requiring no tampering with the airframe structure the systems consists of a double floor insert that is dropped in the rear cabin and on which are affixed the pylons that carry the weapons outside the rear doors on both sides.
At the other end, they beefed up a double floor joist at the kitchen by making a decorative column load-bearing and carrying the load to the foundation.
With its double floor, the M134 could support a number of seating heights and storage possibilities, as well as a relatively low, one-box "monospace" variant with seats that folded into the floor when more space was needed.
Like the standard A-class, the long wheelbase version uses the same double floor "sandwich" principle.
Internally, up to a height of 2.5m, a new glass and timber screen with openable sections for natural ventilation, backs up the existing external band of glazing at eye level, and a 400mm thick double floor has been laid with insulation and electricity cables and ducts to service each work place.