MOCKUP BETTERPAD-RAY - Make a Budget Plan and Calculate Material Requirements for Mosques

The Budget Plan can be made according to the list of analysis of work units that have been made previously. The analysis made is the amount of material needs and workers for each type of work in the construction process by knowing the price of each need along with the total price needed for each type of work. The total price for each type of work on the work unit analysis list is the number value that is filled in the unit price column to list the Cost Budget Plan.

Example Table Price List of Work Unit Analysis (Examples are only for one type of work)

Number	Job Description	Coefficient	Unit	Unit Price	Total Price
2	1 m2 – Location Cleaning
	Workers	0,02	person
	Mason	0,01	person
	Broom	0,03	piece
	Shovel	0,03	piece
	Total

A brief explanation, for example there cannot be 0.02 people. So the right way to understand is that it takes 2 workers and 1 mason to clean an area of 100 m².

God willing, if it is realized, the process of building a building complex based on the Betterpad-Ray Maket design (Benteng Terpadu Raya / Great Integrated Fortress "Mural Wall") will use the Budget Plan, especially for the Shahada Mosque (Masjid Syahadat) design.

In making the Budget Plan, there are five main things that must be considered in calculating costs, namely as follows.

1.      Calculation of material related to the calculation of the amount of material used, including the price. The material used must be suitable for construction needs and of course there are main materials that must be used for (modern) buildings, such as cement, brick and sand. In calculating the amount of material must match between the material form and the unit used. For example, material in the form of grains such as sand and soil uses units of volume, namely m^3 or certain units according to the area or agreement. Material prices per unit must also be known in order to be able to calculate the price of a number of material needed and meticulously at the time of purchase. Suppose 1 cement brick is worth 3000 rupiah, then the price of 100 cement blocks is 300,000 rupiah.

2.      Calculation of workers costs related to the length of work of workers to complete a type of work in units of time and costs that must be incurred. The purpose of the workers want to work in a construction course is to get money for their lives. Whereas the owner or construction planner needs worker's power so the building can be made. Then the workers must get a decent wage in accordance with the length of work. Maybe in 8 hours a day or as needed, the most important thing is that it is not normal and not good if the work is done until night. The workers are divided into their respective types of work and are well coordinated so that the construction runs effectively and efficiently and each worker can work steadily. In addition, workers must get nutritious and good food and drinks to obtain energy. If wages and consumption are given properly and properly, then workers can work with enthusiasm. Wages or salaries are also adjusted to responsibility. The greater the responsibility, the more salary.

3.      Calculation of equipment is the calculation of the type, amount, and length of equipment used and the cost. Equipment is indeed something that must be in construction as needed. Equipment makes a job can be carried out easily and smoothly. Each type of equipment is in accordance with the type of work, for example shovels for cement and sand as wall material, screwdrivers and pliers for electrical installations, and others. Equipment used in construction should belong to the planner or owner of the construction at his own expense in order to be able to calculate his expenses and know the development details properly according to his equipment. The number of equipment and the number of workers must be appropriate so that all workers obtain equipment according to the type of work without scrambling or lacking. It is recommended that the amount of equipment be exceeded from the calculation as a backup or can be used later. Each equipment must also know the length of its use and its durability. Tools that are easily run out like sandpaper must be provided in large quantities. As for machine tools, the energy costs and the duration of use must be calculated.

4.      Calculation of overhead is the calculation of unexpected costs that need to be anticipated, both related to weather and finance. Although there is already planning, there are certainly things that are not according to plan in practice. Then there must be additional fees reserved if there is a sudden need. Things related to the weather, for example when it rains, the building cover (usually a semi-finished building with a layer of cement that is still wet) is needed which can be made of tarpaulin and the rain factor is a common thing. While an example of a financial factor is that the price of existing materials can certainly rise unexpectedly. In addition energy use such as fuel for material transport vehicles or electricity for machine tools can cause unexpected costs, usually due to a longer time than usual.

5.      For contractor service estimators, there is one additional factor, namely profit. This does not need to be done for development that is done alone.

God willing, the calculation of the cost of building the Shahada Mosque (Masjid Syahadat) is in accordance with the above method correctly. For the right purpose, you must use the right way. Because the mosque is a holy place, the way must be honest with sincere intentions.

After all the list of analysis of the price of the work unit is filled and summed, then the price of the work unit is multiplied by each volume (size) of work so that the total cost of the building is obtained.

Example Table List of Budget Plans. This example is only for some types of work.

Number	Job Description	Size / Amount	Unit	Unit Price	Price Total
I.            Preparation, Excavation, and Landfill Work
1	Location cleaning		m2
2	Measurement and bouwplank pairing		m
3	Ground excavation for foundation		m3
4	Back landfill soil on the foundation side		m3
5	Landfill for floor elevation		m3
6	Landfill sand under the foundation		m3
7	Landfill sand under the floor		m3
	Total
II.  Ceiling Work
1	Wooden ceiling framework		m2
2	4mm flywood size 60 cm x 120 cm		m2
3	Indoor ceiling trim		m
4	Outdoor ceiling trim		m
Total
III. Sanitation
1	Bath		piece
2	Squat toilet		piece
3	Bathroom water taps		piece
4	Ablution water taps		piece
5	Bathroom tiles		piece
IV. Painting
1	Wall paint		m2
2	Ceiling and trim wall paint		m2
3	Trim plank oil paint		m2
4	Sills oil paint		m2
5	Doors oil paint		m2
6	Shutters oil paint		m2
Total

Overall Cost Recapitulation Table

Number	Job Description	Price
I	Location cleaning, excavation, and landfill
II	Foundation and concrete
III	Pair walls and stucco
IV	Floors and walls
V	Roof
VI	Ceiling
VII	Sills, doors, and windows
VIII	Doors and windows fixtures
IX	Sanitation
X	Water Installation
XI	Electrical Installation
XII	Painting
XIII	Cleaning
	Total
	Rounded off

The way to calculate material requirements is to multiply the volume on each building component with a coefficient on the job analysis. Then a grouping based on similar material is made and the total material requirements for each type of material will be obtained. For example, the need for sand to install on the foundation plus the need for sand to install on masonry work, plastering work, and work on the installation of the floor, it will obtain a total need for install sand material. The same method is also used for cement material needs, concrete sand, and other materials.

Example of Calculation of Material Needs

Number	Job Description	Coefficient	Volume / Area	Material Requirements
1	1 m2 – Wall Installation 1 PC : 3 Sand
	Red bricks	70 pieces	100	7000 pieces
	Portland cement	0,29 sack	100	29 sacks
	Sand	0,043 m3	100	4,3 m3
2	1 m2 – Wall Installation 1 PC : 5 Sand
	Red bricks	70 pieces	220	15400 pieces
	Portland cement	0,19 sack	220	41,8 sack
	Sand	0,048 m3	220	10,56 m3
3	1 m3 – Wall Plastering 1 PC : 3 Sand and Filler
	Portland cement	0,22 sack	200	44 sack
	Sand	0,028 m3	200	5,6 m3
4	1 m3 – Wall Plastering 1 PC : 5 Sand and Filler
	Portland cement	0,15 sack	400	60 sack
	Sand	0,031 m3	400	12,4 m3

From the results of these calculations, the number of each material can be obtained as follows:

§  The amount of PC (cement) = 29 + 41.8 + 44 + 60 = 174.8 sacks, rounded to 175 sacks.

§  The amount of install sand = 4.3 + 10.56 + 5.6 + 12.4 = 32.86 m³.

§  The amount of red bricks = 7000 + 15400 = 22400 pieces.

This is the article from me. Hopefully the design of the Shahada Mosque (Masjid Syahadat), which is part of the Betterpad-Ray (Benteng Terpadu Raya / Great Integrated Fortress) model, can inspire and be realized. Aamiin. Sorry if there is an error especially in this article.

Reference:

·         Susanta, Gatut, et al. Membangun Masjid & Mushola. 2007. Depok: Penebar Swadaya. (https://archive.org/stream/BukuArsitektur/1048_Membangun%20Masjid%20dan%20Mushola#mode/2up)

 (Architecture Hobby)