proposed construction of social hall at …nairobi.go.ke/assets/documents/social-hall-kahaw… ·...
TRANSCRIPT
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
SUBSTRUCTURES
(All provisional)
A Clear site of glass and small bushes etc. and cart
away from site 228 M2
B Bulk excavations in black cotton soil not
exceeding 1.50metres deep commmencing from
existing ground level 228 M3
C Excavate foundation trenches not exceeding
1.50metres deep commmencing from reduced
level 30 M3
D Ditto column pit ditto 19 M3
E Back fill around foundations with approved
murrum or imported red soil 70 M3
F Extra over for excavation in rock 5 M3
G Allow for planking and strutting to sides of
excavations ITEM
H Allow for keeping excavation free from general
water ITEM
I Load and cart away excavated materials 207 M3
J
Hardcore fill in making up levels consolidated and
compacted in 150mm thick maximum layers 197 M3
K 50mm thick murram blinding on surfaces of
hardcore 187 M2
Carried to Collection
PROPOSED CONSTRUCTION OF SOCIAL HALL AT KAHAWA
WARD
Page 1
ITEMDESCRIPTION QTY UNIT RATE SHS.
NO.
A Treat Surface of murram with chloropyrif or any
other equal and approved antitermite treatment
applied in accordance with the manufacturer's
printed instructions 187 M2
B 1000 gauge polythene sheeting damp proof
membrane laid with 300mm end and side laps 187 M2
Plain concrete (1:4:8) in:-
C 50mm thick blinding under strip foundation 37 M2
D Ditto under column bases 17 M2
Reinforced concrete grade C (1:2:4) mix in -:
E Column bases 5 M3
F Columns in foundations 2 M3
G Strip footing 7 M3
H 150mm thick groud floor slab 187 M2
I Extra over floor slab for thicknessing 450mm
(average) wide x 150mm high 7 M1
Sawn Formwork to;
J Sides of column bases 17 M2
K Sides of columns 22 M2
L Sides of strip founations 24 M2
M Edges of floor beds 75 - 150mm high 56 M1
Carried to Collection
Page 2
ITEMDESCRIPTION QTY UNIT RATE SHS.
NO.
Steel Reinforcement
High tensile reinforcement to BS. 4461 including
cutting bending overlaps spacer blocks and tying
stirrups
A 16mm diameter bars 203 KG
B 12mm ditto 204 KG
C 10mm ditto 145 KG
D 8mm ditto 138 KG
E BRC fabric ref: A142 welding 2.20kg/m2
including overlaps, laid with 150mm end and side
laps 187 M2
Rough chisel dressed "Nairobi blue" stone walling
jointed and bedded in cement and sand(
1:4)mortar reinforced with hoop iron in every
alternate course
F 200mm thick walls 109 M2
Bituminous felt damp proof course laid with
150mm end laps
G 200mm wide laid with 150mm end laps 71 LM
H 150mm wide ditto 8 LM
I 100mm wide ditto 3 LM
12mm thick cement and sand (1:4) render in:-
J Plinth area 17 M2
Carried to Collection
Page 3
ITEMDESCRIPTION QTY UNIT RATE SHS.
NO.
Prepare and apply two coats bituminous paint
on
A Rendered plinth 17 M2
Carried to Collection
COLLECTION
Page 1
Page 2
Page 3
Page Above
TOTAL OF SUB-STRUCTURE
CARRIED TO SUMMARY
Page 4
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
WALLING
Machine dressed natural "Nairobi blue" stone
walling bedded and jointed in cement and sand
(1:4) mortar reinforced with hoop iron in every
alternate course
A 200mm thick wall 334 M2
B 150mm thick wall 8 M2
C 100mm thick wall 4 M2
D Labour and materials for eaves filling 200 x
175mm (average) high including splay cutting at
the top 35 M1
E
Extra over for raking cutting 200 mm thick wall 12 M1
Mild steel
F 75 x 75 x 4mm Rectangular hollow section
column 3200mm long both ends fixed to concrete
slab or beam 4 NO
G 200 x 200 x 4mm thick base or head plates
welded to steel column 8 NO
Painting
Prepare prime and paint two undercoats
one finishing coat gloss paint on :-
A Metal surfaces 200-300mm girth 12 M2
TOTAL FOR WALLINGCARRIED TO SUMMARY
Page 5
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
FRAME
All provisional
Vibrated reinforced concrete class 20/20 in:-
A Beams 14 M3
B Columns 9 M3
C Stairs 2 M3
D 200mm Suspended slab 129 M2
E 150mm Thick ditto 48 M2
F 150mm Landing 3 M2
Sawn formwork to:-
F Vertical sides and soffits of beams at openings 153 M2
G Sides of columns 102 M2
H Soffits of suspended slab 177 M2
I Soffits of landing 3 M2
J Slopping soffits of stairs 8 M2
K Sides of open string edge of stairs 225 - 300mm
high 7 M1
L Sides of risers 75 - 150mm high 25 M1
M Edges of suspended slab 150- 225mm high 33 M1
N Ditto 75 - 150mm high 23 M1
O Ditto not exceeding 75mm high 18 M1
Carried to Collection
Page 6
ITEMDESCRIPTION QTY UNIT
NO
Steel Reinforcement
(PROVISIONAL)
High tensile reinforcement to B.S. 4461
including cutting, bedding, overlaps, spacer
blocks and tying stirrups
A 16mm diameter bars 1911 KG
B 12mm ditto 365 KG
C 10mm ditto 1739 KG
D 8mm ditto 877 KG
Carried to Collection
COLLECTION
Page 6
Page Above
TOTAL FOR FRAMECARRIED TO SUMMARY
Page 7
ITEMDESCRIPTION QTY UNIT RATE SHS.
NO.
ROOFING
ROOF CONSTRUCTION
Framed Structural Steel Works (A Per Structural
Engineer's Details)
Mild steel rectangular hollow sections cut as required
and fillet welded together and primed with red lead
oxide primer after fabrication
The following in 6No. roof trusses 7500mm(maximum)
clear span and 1700mm(maximum) high including
welding, bolting, riveting and hoisting approximately
7100mm above ground level
A 75 x 50 x 6mm rafter 1000 kg
B 50 x 50 x 4mm bracings 600 kg
C 50 x 50 x 3mm struts or ties 500 kg
D 75 x 50 x 6mm bottom cord 600 kg
E 150 x 50 x 2mm Z-Purlins 980 kg
F 12mm Diameter sag rods 200 kg
G 500mm long x 200mm wide x 10mm thick plate with 8
no. 16mm diameter holes welded to steel truss and
bolted to reinforced concrete column 12 no
H 16mm diameter x 450mm long anchor bolts including
all necessary washers and nuts 96 no
Carried to Collection
Page 8
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
28 Gauge galvanized prepainted IT4 profile roofing
sheets as manufactured by 'Mabati Rolling Mills' or
other equal and approved manufacturer fixed to steel Z
- purlins (m.s) with and including J-bolts nuts and and
washers, laid with 300mm side and 150mm end laps
A Roof covering fixed to steel purlins 233 M2
B Matching ridge cap laid with 150mm end laps 18 M1
Rain water goods
28 gauge galvanized iron
C 150 x 150mm U-shaped pre - painted gutter fixed
to and including 20 x 4mm steel brackets welded
to Z-purlins 36 M1
D Extra over gutter for outlet 8 NO
E Extra over gutters for stopped ends 4 NO
F 100 x 100mm diameter down pipe fixed to wall
with and including approved holderbats 62 M1
G Extra over ditto for swan neck 8 NO
H Ditto horse shoe 8 NO
Carried to Collection
Page 9
ITEMDESCRIPTION QTY UNIT
NO
Painting
Prepare prime and paint two undercoats
one finishing coat gloss paint on :-
A
General metal surfaces of gutters and down pipes 41 M2
Carried to Collection
COLLECTION
Page 8
Page 9
Page above
TOTAL OF ROOFING
CARRIED TO SUMMARY
Page 10
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
DOORS
Lintols
A Precast concrete lintol size 200 x 200mm
reinforced with 4no 12mm bars and 8mm
diameter rings 4 M1
Mild steel
B Metal door overall size 1800 x 2900mm high in
two equal leafs fabricated from 40 x 25 x 3mm
thick RHS frames at 300mm centres horintally
and 4500mm vertically infilled with 16Gauge flat
sheet in an approved pattern, 40 x 25 x 3mm
angle hinging frame including priming with red
oxide before fixing and all ironmongery. 3 NO
Flush doors
C 50 Thick solid core flush door size 820 x 2032
mm high faced both sides with 3mm thick
interior quality mahogany veneers and hard wood
lipped on all edges 3 NO
D Ditto semi solid core door size 720 x 1800mm
high ditto 2 NO
Wrot prime grade mahogany in door frames and
finishings
F 15mm quadrant beading with one labour 24 M1
G 38 x 15mm architrave with two labour 24 M1
G 50 x 15mm glazing bead 7 M1
H 100 x 50mm frame with four labours plugged 24 M1
Carried to Collection
Page 11
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
A 100 x 50mm Transome 3 M1
Glazing
B 5mm Clear sheet glass and fixing to timber with
beads (m.s) 1 M2
Ironmongery
Supply and fix the following ironmongery with
matching screws as per "UNION" catalogue or
other equal and approved
C 100mm Brass butt hinges 7.5 PRS
D Three lever mortice lock and fix to timber door
complete with aluminium lever furniture 3 NO
E Approved lock to double leaf metal door 3 NO
F 38mm diameter, 59mm deep rubber door stop
including 32mm deep iron lug plugged to floor 11 NO
G Approved bronze cast zink indicator bolt 2 NO
H Approved Briton or other equal and approved
door closer 2 NO
I 110mm long x 18mm wide x 65mm projection
extruded aluminium hat and coat hook 2 NO
Prime back of frame before fixing
J Surfaces not exceeding 100mm girth 72 M1
Prepare prime and paint two undercoats
one finishing coat gloss paint on :-
K General metal surfaces 31 M2
Carried to Collection
Page 12
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Prepare and apply three coats of clear
polyurethane lacquer laquer varnish on :-
A General surfaces of woodwork 17 M2
B Ditto not exceeding 100mm girth 48 M1
C Ditto 100 - 200mm girth 27 M1
Carried to Collection
COLLECTION
Page 11
Page 12
Page above
TOTAL FOR DOORS
CARRIED TO SUMMARY
Page 13
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
WINDOWS
Mild steel
Metal windows in 3mm thick sections
Supply and fix the following purpose made Steel
Casement windows in standard Z-Sections
complete with lugs, hinges, approved imported
brass window stays and handles, with built-in
permanent vents at top all primed with red lead
oxide after fabrication
A
Window size 3900 x 1700mm to Architects detail 4 NO
B Ditto size 2700 x 1700mm high 4 NO
C Ditto size 1800 x 1700mm high 1 NO
D Ditto size 1500 x 1700mm high 2 NO
E Ditto size 1000 x 900mm high 2 NO
F Ditto size 900 x 1700mm high 7 NO
G Ditto size 850 x 900mm high 2 NO
Steel grilles to window openings comprising of 20
x 20 x 1.6mm thick Square Hollow Sections (SHS)
steel frame all round; divided vertically and
horizontally with 20 x 20 x 1.6mm thick SHS
steel transomes and mullion at 200mm centres
welded diagonally to pattern and approval
H Grilles welded to metal windows 67 M2
Carried to Collection
Page 14
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Glazing
6mm Clear sheet glass and fixing to metal with
putty
A In panes 0.10 - 0.50m2 65 M2
6mm Obscure sheet glass and glazing to metal
with putty
B In panes 0.10 - 0.50m2 2 M2
Window cill
C 275 x 50mm thick splayed, weathered and
throated window cill bedded and jointed in
cement and sand (1:4) motar, with fair face
finish on exposed surfaces 41 M1
Pelmet boxes
Wrot Mahogany
D 150 x 25mm Moulded fascia board 43 lm
E 100 x 25mm Soffit board 43 lm
F 50 x 25mm Bearer plugged 43 lm
G 150 x 100 x 25mm Boxed end 38 No.
H Approved alluminium "I" section curtain track
screwed with and including brackets to soffit of
pelmet box 43 lm
Carried to Collection
Page 15
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Painting and decoration
Prepare prime and paint two undercoats
one finishing coat gloss paint on :-
A General metal windows( both sides measured flat
overall) 60 M2
B Ditto metal grilles 60 M2
Prepare and apply three coats emulsion paint
on:-
C P. C. Surfaces 9 M2
Carried to Collection
COLLECTION
Page 14
Page 15
Page Above
TOTAL FOR WINDOWS
CARRIED TO SUMMARY
Page 16
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
FINISHES
Floor finishes
Cement and sand (1:3) in:
A 32mm thick paving finished to receive ceramic tiles
floor finish (m.s) 258 M2
B 20mm thick ditto to receive terrazzo floor finish 76 M2
Approved ceramic tiles floor finish
C 300 x 300 x 8mm Thick ceramic tiles floor finish
laid on screed with approve adhesive 258 M2
D 100 x 20mm matching skirting 93 M1
Polished terrazzo
E 20mm thick paving on prepared screed 76 M2
F 100 x 20mm matching skirting 62 M1
G 40 x 3mm plastic dividing strip (Provisional) 190 M1
Wall finishes
H 12mm thick gauged plaster trowelled smooth 501 M2
I Extra over unset plaster for forming rough
surface to receive wall tiles (m.s) 38 M2
J Prepare and apply three coats silk vinyl emulsion
paint to plastered walls 463 M2
Carried to Collection
Page 17
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Ceramic tiles from an approved manufacturer
A 200 x 250 x 6mm thick coloured ceramic wall
tiles fixed with an approved adhesive on prepared
render (m.s) 38 M2
B Genesis' or other equal and approved plastic
edge strip to wall tiles fixed with an approved
adhesive 31 M1
Ceiling finishes
C12mm thick gauged lime plaster trowelled smooth
162 M2
D 12mm Thick chipboard ceiling fixed on
branderings (m.s) 173 M2
Wrot Cypress
E 75 x 25mm thick Cypress cornice plugged to wall
89 M1
F 50 x 50mm brandering 527 M1
G Ditto plugged 89 M1
Painting
Prepare and apply three coats plastic emulsion
paint
H General surfaces of chipboard ceiling 173 M2
I Ditto not exceeding 100mm girth 89 M1
J General surfaces of plastered ceiling 162 M2
Carried to Collection
Page 18
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
External wall finishes
A 15mm Cement and sand (1:4) render to
concrete surfaces 95 M2
B Extra over stone walling for key pointing
including forming flush vertical and recessed
mortar joints 256 M2
C Prepare and apply three coats 'Permaplast' or
other equal and approved exterior wall paint to
rendered walls 95 M2
Staircase finishes
Polished terazzo
D 40mm thick paving laid on and including
prepared screed at landing 3 M2
E 300 x 20mm thick finish to treads 28 M1
F 300 x 20mm finish to concrete open string of
stairs 6 M1
G 300 x 20mm finish to concrete wall string of
stairs 6 M1
H 150 x 20mm finish to risers 30 M1
I 100 x 20mm coved and rounded skirting 5 M1
J 40 x 3mm plastic dividing strip 14 M1
K 40mm wide carborundum non slip insert 28 M1
Carried to Collection
Page 19
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Mild steel balustrades
A Mild steel balustrade consisting of 30 x 30 x 3mm
RHS top and bottom rails, 30 x 30 x 3mm RHS
main balusters at 900mm centres and 25 x
25mm RHS balusters at 150mm centres and 50 x
3mm CHS hand rail to passage 9 M1
B Ditto but raking to stairs 8 M1
Carried to Collection
COLLECTION
Page 17
Page 18
Page 19
Page Above
TOTAL OF FINISHESCARRIED TO SUMMARY
Page 20
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
INTERNAL PLUMBING AND DRAINAGE
Supply and fix the following Sanitary Fittings as per
"Twyfords" or other equal and approved
manufacturer(s) catalogue; including all necessary
fixing fittings and accessories
A White vitreous China wash hand basin size 450 x
300mm including 2No 12mm diameter chromium
plated "pegler" type pillar taps, 32mm diameter
chromium plated waste fitting, plastic "p" trap with
cleaning eye, plug and chain 2 No
B White vitreous China Asian type (squatting type) w.c
suite including " Fordham" plastic cistern 2 No
C Recessed ceramic toilet roll holder
Storage Tank
D 1000mm litre capacity storage tank as manufactured
by 'ROTO' or other equal and approved
manufacturer(s) including mosquito proof cover and all
necessary perforations and connection fittings and
bearers 2 NO
Mirror
E 6mm thick 'IMPALA" silver plated mirror size 600 x
450mm plugged onto wall with chromium plate dome
headed screws 2 NO
Automatic Cistern
F Plastic automatic cistern as manufacturered by
'Fordham or other equal and approved
manufacturer(s),complete with stainless steel flush
pipes and all necessary fixing accessories 2 No
Carried to Collection
Page 21
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Urinal Slab
A Bowl urinal complete with Bottle trap 2 No
Internal plumbing & Drainage pipework
B Allow for all necessary internal plumbing and drainage
pipework and all necessary fittings accessories ITEM
Carried to Collection
COLLECTION
Page 21
Page Above
TOTAL OF INTERNAL PLUMBING AND
DRAINAGE CARRIED TO SUMMARY
Page 22
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
EXTERNAL WORKS
All provisional
Paved areas
A Excavate oversite to remove black cotton soil not
exceeding 1.50m deep from ground level and cart
away 73 M3
B Hardcore fill in making up levels consolidated
and compacted in 150mm thick maximum
layers 64 M3
C 125mm Thick murran blinding to receive cabro
blocks (m.s) 73 M2
D "Telva W" or other equal and approved weed
killer applied in accordance with the
manufacturers printed instructions 73 M2
E 600 x 600 x 50mm thick precast concrete class 20/20
paving slabs jointed and pointed in cement and sand
(1:4) mortar 73 M2
External Foul Drainage
Note: Foul drainage measurements have been taken
up to and including the first collection manhole and the
associated pipe- work up to the outer edge of walls.
F Excavate trench for 225mm drain pipe and bed under
not exceeding 1.50 metres deep starting from existing
ground level, part return fill and ram, and remainder
cart away 30 M1
Carried to Collection
Page 23
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
Concrete (1:3:6) beds and surround to pipes including
all necessary formwork
A 150mm thick bed and surround including haunching to
pipe after laying 5 M3
UPVC Heavy Duty "Golden Brown drain pipes
including fittings and jointing
B 100mm diameter pipe 18 M1
C 150mm diameter pipe 12 M1
The following in 5 No Block manholes
D Excavate for block manholes not exceeding 1.50
meteres deep, part return fill and ram, and remainder
cart away from site 5 M3
E Extra over for excavating in rock 1 M3
F 200mm thick (average) concrete (1:3:6) benching to
bottom of manhole size 450 x 600mm steeply
haunched to sizes and finished in cement and sand
(1:3) mortar, trowelled hard and smooth, including
forming main and branch channels 4 No
G 100mm thick concrete (1:3:6) base 3 M2
H 100mm thick vibrated reinforced concrete class 20/20
in suspended cover slab 3 M2
I Sawn formwork to soffits of ditto 3 M2
J Ditto edges of ditto 75 - 150mm high 14 M1
K Ditto boxing to form rebated opening size 600 x
450mm for manhole cover 5 No
Carried to Collection
Page 24
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
A
BRC mesh reinforcement to suspeded slab size A142 7 M2
B 150mm thick stone walling bedded and jointed in
cement and sand (1:4) mortar 3 M2
C Build end of extra large pipe through 200mm wall 15 No
D Medium duty fibre cover and frame size 600x450mm
including bedding frame in cement and sand (1:4)
mortar and setting cover in grease 5 No
E 12mm thick gauged (1:2:9) plaster steel trowelled
smooth to internal surfaces of walls 11 M2
F 20mm thick cement and sand (1:4) screed cover slab
finish steel trowelled smooth 3 M2
G Prepare and apply three coats bituminous paint to
manhole cover on completion 2 M2
H Allow for testing the whole of foul drainage upon
completion to the satisfaction of Drainage Engineer ITEM
Water reticulation
Excavations
I Excavate for small pipe not exceeding 1.5m deep and
average 500mm deep, part return fill in and ram and
remainder cart away 30 M1
Medium grade galvanized iron pipes and fittings class
B
J 25mm Diameter pipe in trench 20 M1
K 25mm Elbow 4 NO
L 25mm Gate valve "Peggler" 1 NO
Carried to Collection
Page 25
ITEMDESCRIPTION QTY UNIT RATE SHS
NO
A 25 - 20 mm Reducing bush 2 NO
B 20mm nipple 2 NO
C Allow for water connection charges from mains by
Nairobi Water and Sewarage Co. including installation
of water meter ITEM
Carried to Collection
COLLECTION
Page 23
Page 24
Page 25
Page Above
TOTAL OF EXTERNAL WORKS
CARRID TO SUMMARY
Page 26
ITEMDESCRIPTION QTY AMOUNT
NO
SOCIAL HALL
SUMMARY
PAGE
A SUBSTRUCTURES 4
B WALLING 5
C FRAME 7
D ROOFING 10
E DOORS 14
F WINDOWS 16
G FINISHES 20
H INTERNAL PLUMBING AND DRAINAGE 22
I EXTERNAL WORKS 26
TOTAL OF MAIN HALL
CARRIED TO GRAND SUMMARY
Page 27
ITEM DESCRIPTION QTY UNIT RATE SHS.
NO
PRIME COST AND PROVISIONAL SUMS
A Allow a provisional sum of Kenya shillings Fifty
thousand only (Kshs. 50, 000/-) for Transport of NCC
technical staff to and from site during contract period
and defect liability period SUM
B Provide a provisional sum of Kenya shillings Four
hundred thousand only (Kshs. 400, 000/-) for electrical
installation to be executed by an approved Electrical
sub-contractor SUM
B Provide a provisional sum of Kenya shillings Six
hundred thousand only (Kshs. 600, 000/-) for furniture
and public adress system SUM
E Provide a provisional sum of Kenya shillings Two
hundred thousand only (Kshs.300,000/-) for
contingencies SUM
TOTAL FOR PRIME COST & PROVISIONAL
SUMSCARRIED TO GRAND SUMMARY
Page 28
ITEM DESCRIPTION AMOUNT
NO.
SOCIAL HALL AT KAHAWA WARD.
SUMMARY PAGE
A PRELIMINARIES
B MAIN HALL 27
C PRIME COST AND PROVISIONAL SUMS 28
Add 16% of VAT
TOTAL CARRIED TO THE FORM OF TENDER
Amount (in words) kenya shillings………………………………………………………………….
………………………………………………………………………………………………………..
……………………………………………………………………………………………………….
Name of Tenderer………………………………….
Address…………………………………………….
Signature…………………………………………..
Date………………………………………………..
Name of Witness………………………………….
Address…………………………………………….
Signature………………………………………….
Date…………………………………………………
PROPOSED CONSTRUCTION OF MULTI-PURPOSE
Page 29