# Math

posted by .

How many board feet is the walking surface of my deck? How many boards are installed?

This is the key she gives:
2” x 6” x 16’ long… 24’ / 6” = 24’ / .5’ = 48 boards

Answer: 16 BF/Board x 48 Boards=
768 Board feet required for the walking surface of the deck.

How is she getting this?

• Math -

Because the boards are 2 inches thick, each square foot of deck area is 2 board feet. You have not told us what the area of the deck is.. only that you are using 16' long boards of 2"x6" cross section. each of this boards is 2*(1/2)*16 = 16 board feet. 48 boards is indeed 768 b.f.

Your deck area must be 48 boards x 8 s.f/board = 384 s.f. It might be 24 x 16 feet, but you don't tell us. They should have specified the deck area somewhere.

## Similar Questions

1. ### Math

The Smiths have a pool that is 20 feet by 35 feet. A 5 foot wide deck completely surrounds the pool. The average depth of the pool = 6 feet. How much surface area is covered by the proposed pool deck?

A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter noticies he has enough pieces left to make up the same length as 4 origional boards. How many origional boards did he …
3. ### math

I asked this question but no one answered it. Can someone please help explain this before I have my math test today. THANKS. A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter …
4. ### math

1. Corey needs 24 boards that are 47.5 inches How many feet of board should he buy and then explain. 2. If you can only buy 8 foot boards, how many should he buy?
5. ### Math

A Classroom bulletin board is 7 feet by 4 feet. If there is a picture of a student every 6 inches along the edge, including one in each corner, how many pictures are on the bulletin board?
6. ### Math

Linda bought 52 boards to replace part of her fence. If each board was 4 1/2 feet long. What was the total length of the boards that Linda bought for her fence?
7. ### geometry

Mr. Franco is making a triangular cement slab and needs to set boards before he can pour the cement. He has already set two boards that are 5 feet and 8 feet in length. What is a reasonable range for the length of the third board that …
8. ### Chemistry 101

A carpenter is building a deck and needs 750 board meters of ACC chemically treated lumber. The individual boards com in 8 foot and 12 foot lengths. How many boards will he need to complete the deck?
9. ### Math

Rafi had a board that was 15 1/2 feet long. He cut three pieces off the board that are each 3 7/8 feet long. How much of the board is left?
10. ### Math

23. Lois built a rectangular flower bed. She used four boards for the border of the flower bed. Two of the boards were 4 feet long. The other boards were 8 feet long. a. What was the area of the flower bed using these boards?

More Similar Questions