Materials

Determining Materials:

The best practice when determining a material list is to layout all pieces on paper and minimize the amount of waste. With a good set of working drawings, the layout of pieces is much easier.

For this project we will be building 21 chairs. According to the drawings, the backrest is 32" high and we will need 2 - 2x4's and 1 - 2x6 for each backrest. For the seats we will need 2 - 2x4's at 12" in length and 1 - 2x6 at 24" in length.

The diagram above shows how we will layout a cut list for our material. As you can see on the left side of the diagram we have 2x4's and 2x6's. Each length of lumber is 8'.

The top diagram represents the backrest. With the lumber being 8' in length, 96", we can evenly divide it into 3 - 32" pieces. If we multiply those 3 sections by 7, we will have 21 backrests. Therefore we will need 14 - 2x4's and 7 - 2x6's.

The lower diagram represents the seat. The length of this lumber is 8' as well. We can evenly divide the 2x4's into 12" sections to use as the 2 outside pieces for the seat. We are able to get 8 pieces which will work for 4 seats. The 2x6 needs to be 24" in length which means we can cut it into 4 sections. We now know we can construct 4 seats with 1 - 2x4 and 1 - 2x6. Needing 21 seats we will need to purchase 6 - 2x4's and 2x6's. This results in having enough material to make 24 seats.

Total material needed as per upper calculations:

20 - 2x4x8'

13 - 2x6x8'