Basic Building Cost Info Requested

[basilic13]

Does anyone would know a rough estimate for the contruction cost (somewhere in central thailand) for a

1) a simple and basic concrete foundation of about 100 m2

2) a simple and basic concrete terrasse of about 100 m2

3) enough concrete tilts to support the terrasse over the foundation at about 2.50 m.

Alternatively, where on the web would i be able to find such information?

Many many thanks to any feedback and insight!!!

[longball53098]

You can start you're looking right here on TV. Jump over to the Do-It-Yourself forum and use the search. There are many topics related to construction costs and building advice

[sbk]

moved to DIY forum

[DrDave]

Does anyone would know a rough estimate for the contruction cost (somewhere in central thailand) for a

1) a simple and basic concrete foundation of about 100 m2

2) a simple and basic concrete terrasse of about 100 m2

3) enough concrete tilts to support the terrasse over the foundation at about 2.50 m.

Alternatively, where on the web would i be able to find such information?

Many many thanks to any feedback and insight!!!

You can get a rough estimate by figuring out how many cubic meters of concrete and how many meters of reinforcing steel you'll need.

First, you need to layout a plan for your foundation. You'll need to have columns and cross beams every 3-4m. So, for a square 10x10m structure, you'd need 4 cross beams (2 in each direction - looking like a tic-tac-toe grid). You'd also need 16 columns in this case (1 every 3.3 meters).

Standard columns are 20cm square, and it sounds like each one will be about 3.5m high (1 m in the ground, and 2.5 m out of the ground. Thus, each column has .2 x .2 x 3.5 = 0.14m3 of concrete. You'll need 4 pieces of steel rebar in each column. Depending upon the thickness you use, the cost of the rebar is between 50 and 200 baht for 10 meters. Ground and ring beams are about 20x30cm. Using a 10x10 plan with 4 cross beams, you would have 80 linear meters of 20x30cm ground beam, and the same for the ring beam (at the top of the columns). That's a total of (.2x.3x80)x2 = 9.6m2 of concrete. You'll also need about 32 10m pieces of rebar. For the concrete floor, you'll need to use precast concrete slabs that will rest on the ring beams, with an additional 10cm or so of concrete poured on top of that. I don't recall the cost of the concrete slabs - somewhere around 200-300 baht for a 50cm x 3meter piece? The cement you pour on top of the precast slabs will be .1x10x10 = 10m3. You'll also need some steel mesh to embed in the concrete slab, but this is cheap.

So - as a very rough estimate, I'd say the total cost of materials would be around 60,000 baht, using ready mix concrete. Less if you buy portland cement in bags, and mix it with rock and sand onsite. If your builder doesn't already have wood required for the temporary column and beam forms and supports, then you'll have to buy this (which can be fairly expensive). Also, add in a couple thousand baht for extra concrete and rebar for the column footings. Probably another 5-8,000 baht or so for labor, depending upon the labor costs in your area, and whether you need to mix the concrete onsite.

Concrete: (16 x (.2 x .2 x 3.5)) + (8 x (.2 x .3 x 10)) + (8 x (.2 x .3 x 10)) + (.1 x 10 x 10) = 22m3 @ 1,600baht/m3 (ready mix) = 35,200 baht

Precast Panels: (60 x (50cm x 3.3m) @ 250 baht/each = 15,000 baht (not sure of the cost/piece of this - could be more or less)

Steel: (16 x (4 x 3.5)) + (8 x (4 x 10)) + (8 x (4 x 10)) = 864m (87 pieces @ 125 baht/pc) = 10,875 baht

For more information, and up-to-date material costs, google "house construction thailand".

[basilic13]

wow... very impressive! thanks a lot!!