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More information is needed EG what type of 12 inch blocks there are many(see link below).

Also what way up are you using these blocks.

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Q: How many 12 inch blocks will cover 4200 square feet?
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Related questions

How many sq feet is 4200 square meters?

4200 (square meters) = 45,208.4238 square feet.

How many square meter is 4200 square feet?

4,200 square feet is 390.2 (390.1928) square meters.

How many blocks 12x12 do you need to cover 240 sq ft?

12 x 12 blocks (assumed as 12 inch x 12 inch) That means the blocks are 1 square foot each Hence to cover 240 square feet area, you would need 240 blocks

How many 8x16 cement blocks would it take to cover 144 square feet area?

Assuming they are 8 inch*16 inch blocks, 144 square feet = 144*12*12 square inches. So number of blocks required = 144*12*12/(8*16) = 162

4200 square feet equals how many meters squared?

390.192768 m2

How many square feet are in 30 ft by 140 ft?

4200 sq ft.


Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.

How many square feet will a bungle of shingles cover?

A bundle of Shingles will cover roughly 33 square feet. A square of Shingles (3 Bundles) will cover 100 square feet.

How many 8 by 16 patio blocks will it take to cover 300 square feet?

337 and 1/2 Add 10% for breakage.

How many 12 x 12 blocks to fill an 14' x 14' area?

If the blocks are 12 inches x 12 inches then each block measures 1 square foot. An area of 14 feet x 14 feet has a surface area of 196 square feet, so it would require 196 of the 12" x 12" blocks to cover it.

How many 8x8x16 concrete block does it take to make 100 square feet?

A 16 foot by 16 foot block has an area of 256 square feet. It would require 4.836 16 foot by 16 foot blocks to cover an area of 1238 square feet.

How much area will 35 square feet cover?

"Square feet" aren't things that are used to cover area."35 square feet" is an amount of area that you have to cover with something.