This document provides a bill of quantities for the construction of a shelter for a pilot balloon. It includes items for the substructure, superstructure, doors and windows, electrical installations, and surface finishes. The substructure involves excavation, disposal of materials, hardcore filling, and a concrete floor bed. The superstructure includes reinforced concrete columns, beams, and a roof slab. It also involves block wall construction. Other items include windows, water pipes, electrical wiring and outlets, rendering, and painting. The total cost is summarized across the various elements of the shelter's construction.

1. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
SUB-STRUCTURE (ALL PROVISIONAL)
GROUNDWORK
A Removing trees from site 1.5 - 3.0m girth including,
grubbing up roots, disposal of materials, and filling voids - no.
B Clear site of bushes, scrub, undergrowth, hedges and
trees < 600mm girth. 80 m
2
EXCAVATING
C Excavating topsoil for preservation, 150mm average
depth. 80 m
2
D Excavating trenches for foundation; width > 0.50m, and
maximum depth <1.50m 30 m
3
DISPOSAL
E Removal surplus excavated materials to spoil heap
100m from site. 8 m
3
F Clear away excavated topsoil to a temporary spoil
heap 100m from site. 8 m
3
G Filling and compacting to excavations average thick-
ness > 0.25m, with selected materials arising from the
excavations. 20 m
3
H Approved well compacted laterite filling to make up
levels, average thickness < 0.25m. 20 m
3
I Hardcore ditto. 20 m3
Total Sub-structure 1
Cityscape Associates
19 Kairaba Avenue Page 1 of 7 Bill 5

2. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
SURFACE TREATMENTS
A Levelling and compacting bottoms of excavations to
receive concrete 22 m
2
B "Dursban TC" antitermite treatment to faces and bottom
of excavations. 125 m2
2. IN - SITU CONCRETE
FOUNDATIONS
C Plain in-situ concrete grade C20 - Screened gravel in foundations
poured against earth. 4 m
3
REINFORCED
D
Reinforced in-situ concrete grade C25 - Basalt aggregate in columns of
foundations and ground beam 3 m
3
E Plain in-situ concrete grade C20 - Screened gravel in floor bed, thick-
ness 200mm, poured on unblinded hard-core. 16 m3
F
In-situ concrete grade C25 - Basalt aggregate for pad, constructed on 500mm
sand bedding and surrounding with polyeterine material or equivalent against
vibrations. 6 m3
FORMWORK
G Plain vertical formwork to sides of foundations columns. 150 m
H Ditto to sides of floor bed. 100 m
REINFORCEMENT
I 12mm ditto - pads, columns and ground beam 700 m
J Mild steel links reinforcement 6mm diameter bar 300 m
3. MASONRY
BLOCKWALLING
K 150mm thick solid sandcrete vertical blockwalling
bedded and jointed in cement mortar 1:6 mix. 66 m
2
SUNDRY ITEMS FOR BLOCKWALLING
L 1000 (gauge) polythene sheet horizontal damp-proof-
course laid in concrete, width > 225mm 78 m
2
Total Sub-structure 2
4. SURFACE FINISHES
RENDERED COATINGS
M 12mm thick cement and sand (1:3) rendering on
blockwork in one coat, width > 300mm. 28 m
2
PAINTING
N Prepare and apply one undercoat and two finishing
coats of emulsion paint on general surfaces, girth
> 300mm. 56 m
2
Total Sub-structure 3
Total Sub-structure 1
Total Sub-structure 2
Total Sub-structure 3
Total Sub-structure
Cityscape Associates
19 Kairaba Avenue Page 2 of 7 Bill 5

3. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
SUPER - STRUCTURE
IN - SITU - CONCRETE
IN - SITU - CONCRETE
A Reinforced in-situ concrete grade C25 - Basalt aggregate in
lintels at ground floors. 1 m
3
B Reinforced in-situ concrete grade C25 - Basalt aggregate in
columns, roof slab and parapet wall. 20 m3
C Reinforced in-situ concrete grade C25 - Basalt aggregate in
roof slab beams. 1 m
3
FORMWORK FOR IN-SITU CONCRETE
D Sawn timber formwork to rectangular beams for,
lintels and roof beams. 70 m
2
Sawn timber formwork to rectangular columns, height
E to soffits < 5.00m and soffit of roof slab. 140 m2
REINFORCEMENT FOR IN SITU CONCRETE
THE FOLLOWING IN HIGH YIELD BENT RE--
INFORCEMENT BARS, AND INCLUDING HOOKS,
TYING WIRE AND SPACERS:
F 12mm diameter in columns. 220 m
G 10mm diameter in lintel. 180 m
H 12mm diameter in main beam to roof slab. 264 m
I 6mm diameter mild steel links 410 m
J 10mm diameter in suspended roof slab 1600 m
MASONRY
BLOCK - WALLING
K 150mm thick hollow sandcrete block vertical blockwork
bedded and jointed in cement mortar ( 1:4 ) mix. 200 m
2
L Louvre or breeze blocks 150mm thick sandcrete block vertical blockwork
bedded and jointed in cement mortar ( 1:4 ) mix. 7 m
2
Total Concrete work and blockwork
Cityscape Associates
19 Kairaba Avenue Page 3 of 7 Bill 5

4. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
WINDOWS / DOORS
Metal framed glazed window.
A 1800mm x 2000mm 8 no.
B Provide and fix burglar bars to the above sliding windows item
Pressed steel glazed door framed in 40 x 40 x 2mm SHS with
C 1.5mm thick steel plate and including cylinder lock (3000 X 4000mm) 1 no.
on rollers
WATER INSTALLATION
water supply pipes to building, including excavated trenches
average depth 750mm sand bedding and pipe ducts with bends
J Polythene 25mm. 30 m
Copper pipe, 15mm water supply pipe and fittings, fixed to wall
with clips, (complete with elbows and Tees.)
K Copper Pipe. Item
Total Windows and Doors
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19 Kairaba Avenue Page 4 of 7 Bill 5

5. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
ELECTRICAL SUPPLY / POWER LIGHTING SYSTEMS
The following in concealed conduit straight PVC pipe 19mm diameter
in chases through blockwork / concrete work and including conduit
accessories; conduit boxes and the like; fixing, bending, cutting,
screwing and jointing; determining routes; draw wires, draw cables,
and the like; and components for earth continuity. Electrical components such
as lighting, switches, sockets, bulbs etc must be watertight and meet the
applicable standards for facilities where explosive gases are in use
A Socket outlet 2P + T / 16A-240V projection explosive atmosphere (flameproof)
with 2.5mm2 cross sectional area cables. 3 no.
Lighting outlets with 1.5mm2 cross sectional area
cables.
B UPVC conduits (final circuit) Item
C Flameproof 10A single stage ignition switch (One gang one way switch) 2 no.
D Flameproof 10A single stage ignition switch (Three gang switch) 3 no.
E Flameproof luminary 1x36w fluorescent for explosive atmosphere 7 no.
G Flameproof luminary 1x36w fluoresent 4 no.
J Provide and fix Electric box for explosive atmosphere 1 no.
K Wiring to all points Item
L Independent earth rod conductor 2 no.
M Allow for testing of electrical installations item
O Change over switch and accessories to accommodate all connections 1 no.
Total Electrical
Cityscape Associates
19 Kairaba Avenue Page 5 of 7 Bill 5

6. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
SURFACE FINISHES
RENDERING AND SCREEDING
WALLS
A 12mm cement and sand (1:3 ) rendering on block and concrete
work on all internal and external wall surfaces 400 m
2
FLOORS
B 50mm thick cement and sand ( 1:4 ) floated bed to
receive finishing. 80 m
2
PAINTING
E Prepare and apply one undercoat and two finishing coats of
emulsion paint on general surfaces. 450 m
2
F Allow for painting of metal surfaces (doors &burgular bars with one
undercoat and two finishing coats of oil paint item
Total Finishes and Decorations
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19 Kairaba Avenue Page 6 of 7 Bill 5

7. SHELTER FOR PILOT BALOON
Item Description Qty Unit Rate D B
ELEMENTAL COST SUMMARY
A SUBSTRUCTURE - FOUNDATION TO GROUND FLOOR SLAB
B SUPERSTRUCTURE - CONCRETEWORK AND BLOCKWORK
C DOORS AND WINDOWS
D ELECTRICAL INSTALLATIONS
E FINISHINGS AND DECORATIONS
TOTAL GENERATOR HOUSE TO SUMMARY PAGE -
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