I haven't done math all summer, and I have a huge assignment the first day! D: so here's the question:
Okay how many boards will it take to make an 8' x 20' deck? Board one: a 2"x4"x8' that is really 3 5/8. Board two: 2"x6"x8' that is really 5 5/8. Question two: how much will it cost to make an 8x20 deck using board 2"x4"x8', the cost of each board is 4.38. Also, how much will it cost to make an 8x20 deck using board 2"x6"x8', the cost of each board is 6.58. Question three: which one is a better deal?
Okay how many boards will it take to make an 8' x 20' deck? Board one: a 2"x4"x8' that is really 3 5/8. Board two: 2"x6"x8' that is really 5 5/8. Question two: how much will it cost to make an 8x20 deck using board 2"x4"x8', the cost of each board is 4.38. Also, how much will it cost to make an 8x20 deck using board 2"x6"x8', the cost of each board is 6.58. Question three: which one is a better deal?
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Your first option is 20(12) = 240 inches wide. 3 5/8 = 3.625
240/3.625 = 66.2 boards. 67 boards at 4.38 = $293.48
Option 2
5 5/8 = 5.625
240/5.625 = 42.6666 boards. 43 boards at 6.58 = $282.94
Option 2 is the least expensive, but many people prefer the look of the narrow board.
By the way, 2x4 boards used to actually be 2 inches by 4 inches. They were rough sawn.
People preferred the nice smooth finish that you get on finished lumber now. The mills used a plane to smooth the boards. This made them smooth, but cut away some of the wood. So now, we buy "NOMINAL" 2x4. Their name is 2x4, but they are actually a bit smaller.
240/3.625 = 66.2 boards. 67 boards at 4.38 = $293.48
Option 2
5 5/8 = 5.625
240/5.625 = 42.6666 boards. 43 boards at 6.58 = $282.94
Option 2 is the least expensive, but many people prefer the look of the narrow board.
By the way, 2x4 boards used to actually be 2 inches by 4 inches. They were rough sawn.
People preferred the nice smooth finish that you get on finished lumber now. The mills used a plane to smooth the boards. This made them smooth, but cut away some of the wood. So now, we buy "NOMINAL" 2x4. Their name is 2x4, but they are actually a bit smaller.