 Indeed, his submission was budgeted at a remarkably low £85,800; by comparison, this was about 2-1/2 times more than the Great Stove at Chatsworth but it was only 28 percent of the estimated cost of Turner's design, and it promised a building which, with a footprint of over , would cover roughly 25 times the ground area of its progenitor.Impressed by the low bid for the construction contract submitted by the engineering firm Fox, Henderson and Co, the commission accepted the scheme and finally gave its public endorsement to Paxton's design in July 1850.He was exultant, but now had less than eight months to finalize his plans, manufacture the parts and erect the building in time for the Exhibition's opening, which was scheduled for 1 May 1851.