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Enclosure II: Table of Estimates, 31 March 1797

II. Table of Estimates

Estimate on the scale of 200. cells and 340. f. diam. of area on the scale of 144. cells & 245. f. diam. of Area.
Quantity Dollars Quantity Dollars
Bricks. Arcade 1120. feet running measure (for an internal area of 340. f. diam.) 386,000. 278,208
106. cross arches, of half a brick thick. 10,600 7,800
108. vaults at mid height of the Piazza, half a brick thick. 38,016 27,360
200. vaults of upper & lower cells. a brick length in thickness 216,000. 155,520
at 15. Doll. per thousand, as all the work is difficult. 650,616 9,759.  468,888. 7,032.
Stone work. front wall of the cells. 1232. f. running measure
back wall of do. 1280.
106. cross walls. 1060
3572. × 2 f. thickness & 23 f. height = 164,312. cub. feet which divided by 25. gives in perch 6 572. perch
add 3d. story of the 2. houses 342.
at 2. Doll. the perch 6 914. 13,828   4,978 9,956 
Fossé. below backwall 8 f.× 1280. and the outer wall 19. f.× 1440.× 2 =75,200. cub. feet 3 008. 6,016. 
Digging- cubic yards digging @ 1/8 Doll. pr. yard 10,000. cub. yds 1,250  
Plaistering Square yards. 10,000. sq. yards 7,200. sq. yds
Paving. brickbats equivalent to whole bricks & laying them @ 5. D. pr. M 126,000. bricks 630.  90,000. bricks 450.
Slating. squares of 100. f. @ 12. D. the square (London price) 400. squares 4,800   288. squares 3,456 
Roof. joists, rafters, sheeting & putting up @ 3 1/3 Doll. per hundred sq. feet 80,000. sq. feet 2,666   57,600. sq. f. 1,920.
Flooring. plank floors @ 3 1/3 Doll. per square 50. squares 166.  36. squares 120.
15. pannel doors & 22. sash windows 277   200 
200. sash doors @ 7 1/2 Doll. 200. doors 1 500.  144. doors 1080.
200 iron grated doors 6 1/2 by 2 1/2 f. 120. ℔ each @ 1/8 Doll. 200. doors 3 000.  144. doors 2,160 
2000. f. of stove pipes + 300. f. of sheet iron tubes for privies 2300. f. 575.  1 656. f. 414 
44,467.1 26,788.
If the smaller scale should be adopted, on returning to me the draught and this paper, I will furnish a new drawing on the scale adopted. It need occasion only one fortnight’s delay. It would be well to accompany them with the notes and observations of intelligent workmen, that what is now defective may be known and supplied.

MS (Vi: Executive Papers); entirely in TJ’s hand.

1TJ mistakenly placed this total at the foot of the first column.

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