# Materials to Build a 12×12 Room

You will have the full list of materials to build a 12×12 room, and the breakdown of the different construction activities.

Next we will see the step by step, to know how much material you need to build a 12 by 12 room.

## List of Materials to Build a Room of 4 × 4 Meters and 2.40m Under Roof

The lists of materials you need to build a room are calculated separately, and at the end, a list of summary materials is offered.

### How many square meters does a 4×4 room have?

A 12 by 12 feet room can have between 145 and 150 square feet of net area, depending on the layout of the walls and columns and the thickness of the walls (thickness of blocks and plaster).

### How much Material is required to Build a 12×12 Room h=7′ 10” (Cement, Sand, Stone, Walls, Concrete)

#### How many Cement Bags Required for 12×12 feet Room?

To build a 12×12 room, you need 117 25kg bags of gray cement.

#### How many Bricks are required for a 12×12 Room

In case of building with bricks, you should know how many hollow bricks you need to make a 12×12 room: 1820 bricks of 250x125x65mm (common 10”x6”x3” brick) are needed.

If you need help, use this BRICKS PER SQUARE METER CALCULATOR.

### How much Material do I need to Build a 4×4 meter Room ( Doors and Windows )

Do you need window ideas to place in your room? Here you can see some MODERN WINDOW TYPES and their characteristics.

### How much Material do I need to Build a 4x4m Room h=2.40m (Paint)

Below are the graphic views of the 12×12 feet bedroom in 2D and 3D with measurements, so you can see and know at all times, the type of bedroom in which the calculation of materials is carried out.

#### What Size Bed Fits in a 12×12 Room

To find out, WHAT SIZE BED FITS IN A 12×12 ROOM, you can see these 4×4 meters plans with furniture and dimensions.

### Breakdown of the Material Calculation to Build a 12×12 ft Room

Let’s analyze this first example to find out how to calculate the materials for a 4x4m room and 2.40 meters under roof.

The sample views and the 2d and 3d model are presented, with isolated foundations (variant 1) and strip foundations (variant 2) and the entire concrete super-structure.

#### Foundation Materials (with Isolated Footings)

To build the isolated foundations the following is needed:

#### Materials for the Foundation (Beams) of a 12×12 Room

For the foundation beams with 250 Kg/cm2 (m25) concrete, the following quantities of materials are used:

• 0.19m3 of wood on a 1×8” board
• 0.06m3 of wood in a 1×2” piece
• 0.02m3 of wood in a 3×2” piece
• 0.14m3 of wood in a 4×3” piece
• 2.85kg of 2 1/2” lace
• 0.53kg of 3 1/2” lace
• 395kg of structural cement
• 0.65m3 of sand
• 0.65m3 of gravel
• 195 liters of water
• 45kg of 3/8′ steel bar
• 37.5kg of 1/2″ steel bar
• 61.4kg of 5/8″ steel bar
• 1.4kg of tie wire no.18

#### Foundation Materials (with Strip Footings)

With this foundation variant, it is not necessary to build reinforced concrete columns. However, you can make CATALAN COLUMNS, where the corner blocks are solid and reinforced with steel rods.

In general, the strip foundation can work better than the isolated foundation, for stable and flat terrain. If you can choose, this would be a good choice.

For the construction of cyclopean foundations, with 150kg/cm² (m15) concrete, the following amounts of materials are needed:

• 770kg of masonry cement.
• 1.91m3 of river sand.
• 1.99m3 of stone.
• 1.1m3 of small ragstones (3” to 6” stones).
• 385 liters of water.
• 15kg of 1/2” steel bars (protruding bars).

#### Materials to Build a 4×4 meter Room (continuous footings)

For the continuous footings beams with 250 Kg/cm2 (m25) concrete, which rest on the cyclopean, the following amounts of materials are used:

• 0.12m3 of wood on a 1×8” board.
• 0.04m3 of wood in a 1×2” piece.
• 0.02m3 of wood in a 2×2” piece.
• 1.64kg of 2 1/2” lace.
• 308kg of structural cement.
• 0.52m3 of sand.
• 0.59m3 of gravel.
• 161 liters of water.
• 37kg of 3/8” steel bars (stirrups)
• 26.5kg of 3/8” steel bars.
• 0.6 kg of tie wire no.18.

Making a comparison of the costs of some materials, between the construction of the room with isolated foundations, and with continuous foundations, we have the following result, which can be useful to make better decisions.

#### Column Materials

For the 250 Kg/cm2 concrete columns, the following amounts of materials are used:

• 0.10m3 of wood on a 1×8” board.
• 0.02m3 of wood in a 1×2” piece.
• 0.02m3 of wood in a 3×2” piece.
• 2.00kg of 2 1/2” lace.
• 116kg of structural cement.
• 0.19m3 of sand.
• 0.19m3 of gravel.
• 57 liters of water.
• 15.8kg of 3/8″ steel bars.
• 37.5kg of 1/2″ steel bars.
• 0.6kg of tie wire no.18.

#### Roof Beams (Walls)

For the beams or enclosures with 250 Kg/cm2 (m25) concrete, the following materials are required:

• 0.12m3 of wood on a 1×8” board.
• 0.03m3 of wood in a 1×2” piece.
• 0.02m3 of wood in a 3×2” piece.
• 1.32kg of 2 1/2” lace.
• 0.73kg of 3 1/2” lace.
• 198kg of structural cement.
• 0.32m3 of sand.
• 0.32m3 of gravel
• 102 liters of water.
• 77.8kg of 3/8″ steel bars.
• 0.7kg of wire no.18 (to tie).

#### Cinder Block Wall Materials

For the placement of CINDER BLOCKS you will need:

• 394u of 16”x8”x6” blocks.
• 218kg of masonry cement.
• 120kg of Lime hydrate.
• 0.82m3 of sand.

In the calculation, the openings have been discounted.

If you definitely use bricks, you can see all the WAYS TO PLACE BRICKS IN WALLS and their characteristics.

#### Finishing in Walls, Columns and Beams

For the finishing of walls (60m²), with backsplash, plaster and stucco, you will need:

• 426kg of masonry cement.
• 45kg of white cement.
• 0.30m3 of marble dust.
• 222kg of lime hydrate.
• 1.95m3 of sand.

#### Roofing Materials

For the construction of the reinforced concrete roof slab with a strength of 250kg/cm² (m25 concrete), the following are needed:

• 0.22m3 of wood on a 1×8” board.
• 0.01m3 of wood in a 1×2” piece.
• 0.60m3 of wood in a 4×4” piece.
• 2.34kg of 2 1/2” lace.
• 1030kg of structural cement.
• 1.69m3 of sand.
• 1.69m3 of gravel.
• 505 liters of water.
• 136kg of 1/2″ steel bars.
• 1.2kg of wire no.18 (to tie).

You can also see HOW MANY RODS ARE NEEDED FOR A SLAB of any size.

#### Floor Materials

For the construction of the ceramic floor, with a 40mm mortar pre-floor, the following are needed:

• 145 kg of masonry cement.
• 161 sq ft of ceramic slab.
• 14 kg of white cement.
• 56.8 kg of adhesive cement.
• 0.37 m3 of river sand.
• 0.34 m3 of artificial sand.
• 0.41 m3 of gravel.

#### How much Material do I need to Build a 12×12 ft Room with Ceramic Tile?

Losses are included.

To know the amount of materials to make a 4×4 meters floor, you can review this page with information on HOW MUCH CEMENT YOU NEED PER SQM OF FLOORING, depending on the type of floor.

Remember that each HOUSE DESIGN and each construction project have their own characteristics, which must be analyzed specifically.

This applies to conditions of land, if it is an extension, if it is planned to build on the second level later, among many other variables to consider.

If you have doubts, write it in the comments. See other MATERIAL CALCULATIONS.

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