What are they and what are they used for?

1. Contract Documents What are they and what are they used for?

2. Contract Documents • Architects working drawings • Specifications • Schedules • Bill of Quantities

3. Working Drawings Block Plan Scale 1:2500, 1:1250. This is used to identify the proposed site in relation to the surrounding area

4. Working Drawings Site Plan Scale 1:500, 1:200. This gives the position of the proposed building and the general layout of roads, services and drainage on the site.

5. Working Drawings General Location Plan Scale 1:200, 1:100, 1:50. These show the position occupied by the various areas within the building and identify the location of the principal elements and components.

6. Working Drawings General Location Plan Scale 1:200, 1:100, 1:50. These show the position occupied by the various areas within the building and identify the location of the principal elements and components.

7. Working Drawings Detail Drawing Scale 1:10, 1:5, 1:1. This will show all the information that is required in order to manufacture a particular component.

8. Specifications • Supplements the Working drawings • Not possible to add all the information on to the drawings • A precise description of all the essential information and job requirements that will affect the price of the work but cannot be shown on the drawings

9. Typical items found in a specification include; • Site description • Restrictions • Availability of services • Description of materials • Description of workmanship • Other requirements: site clearance, making good, nominated suppliers and sub-contractors

10. External Walls 275mm external wall consisting of 100mm brick outer skin, 75mm cavity with 75mm Rockwool cavity wall batts. 100mm Thermalite Shield load bearing block work or similar approved. Cavity to be closed using Rockwool; TCB cavity barrier. External d.p.c. to 150mm above ground level. Wall ties to BS.1243 spaced at 900mm maximum centres horizontally, 450mm maximum centres vertically, staggered 225mm centres vertically at openings. Below d.p.c two skins of brickwork and cavity filled with concrete up to 150mm below lowest d.p.c. Internal finish to be 14mmtwo coat plaster to block work. Brickwork and block work to be in accordance with BS.5628:Parts 1-3.

11. Windows Wood windows and doors draught sealed. Toughened glazing to comply with BS 6206:1987 to be used in windows up to 800mm from floor level and 300mm either side in skylights to doors. Doors to have toughened glazing up to 1500mm from floor level. All windows and doors to have 4-6-4 factory sealed double glazed units. Glass to be clearly marked to British Standard by Approved Glazier prior to installation on site. Emergency escape windows-opening lights indicated thus F E to have minimum unobstructed opening of 0.33mm2 and at least 450mm high and 450mm wide. The bottom of the opening area to be 1100mm maximum and 800mm minimum finished floor level.

12. Schedules • Used to record repetitive design information about a range of similar components • the main areas where schedules are used includes: Doors, frames, linings, windows, ironmongery, finishes, (floor, wall, ceiling), lintels etc. • Schedules need to be used in conjunction with range drawings and floor plans

13. DOOR AND IRONMONGERY SCHEDULES

14. DOOR RANGE DRAWING

15. DOOR AND IRONMONGERY SCHEDULES FLOOR PLAN

16. Using the door and ironmongery schedule given to you, work out the following: • 1.State the purpose of schedules. Schedules are used to record repetitive design information. Read in conjunction with floor plans, they may be used to identify a type of door, its size, the number required, the door opening in which it fits, the hinges it will swing on and details of other furniture to be fitted to it. 2. How many type INT1 painted doors are required? Eight

17. 3. State the size and type of door, and the ironmongery for the doorway D4. 686mm x 1981mm x 35mm, INT 2, 2 x 75mm Chrome Butts, Mortise latch, Latch lever, 2 x Coat hook • 4. Produce a list of hinges required for all the doors on the schedule. 3 x 100mm Brass butts 3 x 100mm Steel butts 24 x 75mm Chrome butts 3 x 250mm Tee hinges

18. 5. Produce a list of locks/latches/bolts required for all the doors on the schedule. 1 x Rim night latch 2 x mortise deadlocks 7 x Mortise lock/latch 6 x Mortise latch 5 x 100mm Chrome bolt

19. 6. List all the ironmongery for D1 3 x 100mm Brass butts 1 x Rim night latch 1 x Mortise deadlock 2 x 100mm Chrome bolts 1 x Letter plate 1 x Security Chain 2 x Hinge bolts 2 x Keyhole escutcheons

20. Bill of Quantities • Based on drawings specifications and schedules • Ensures estimators for the contract prepare tenders from the same information • Each item is priced individually this helps with the costing of any alterations to the contract

21. BILL OF QUANTITIES • Quantity surveyors create the Bill of Quantities. It is simply a task of measuring construction work required to implement the architects' design for new or renovated buildings.

22. Pricing of different items of work are done on the basis of the cost of materials, equipment, labour, and overheads and profit. • Materials: The materials costs are calculated by examining the material quotations received from suppliers, applying appropriate wastage factors, and delivery charges. • Equipment: Cost of equipment is calculated usually as a percentage of the cost of materials. Depending on whether the equipment is owned or rented, this percentage will vary.

23. Labour: The most difficult element to price is the labour cost. Allowances for absences due to sickness, loss of time due to bad weather, overtime, etc. are required to be built in to arrive at an all-inclusive labour rate. Rate of productivity is another factor that plays an important role in fixing labour prices. • Overheads and profit: Once the cost of materials, equipment, and labour has been added up, a percentage for profit is added to the item rate. This percentage may vary from project to project depending on how well the Bill of Quantities has been prepared by the QS. It may range from 2.5 to over 25 percent.