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Glenda
07-17-2006, 07:04 AM
Hi, I'm new to this forum as well as the industry I am now working. I've been getting pricing for construction materials for a new home being built and have sent off material lists for quotes to several building supply houses. I have sent off the quantities needed for lumber 1" x 6" T& G in Sq. Feet units and receive back Board Feet Units or Linear Feet units. I would like to be able to convert all the quotes to linear Feet so I can compare pricing accurately. The problem I face is that everyone seems to have varied calculators for this conversion I guess this may be due to what each particular company factors in as a waste factor. What I don't understand is if I am asking for the same grade lumber how can the calculation vary so much?
To confuse the matter I asked for 5/4 x 6 TG @1079 Sq ft and instead of linear or Bd Ft I got back a board price @ \$11.99 for a 16' Bd. Please help!

Robert Fogt
07-17-2006, 08:09 PM
Linear feet takes only the length of the board into account.

Square feet would take the length in feet times the width in feet.

Board feet is the length of a board that is 12 inches wide by 1 inch thick.

To convert square feet to linear feet:
square feet / width of board in feet = linear feet

To convert board feet to linear feet:
board feet / width of board in feet / thickness of board in inches = linear feet

Glenda
07-18-2006, 08:51 AM
Linear feet takes only the length of the board into account.

Square feet would take the length in feet times the width in feet.

Board feet is the length of a board that is 12 inches wide by 1 inch thick.

To convert square feet to linear feet:
square feet / width of board in feet = linear feet

To convert board feet to linear feet:
board feet / width of board in feet / thickness of board in inches = linear feet

I belieive I understand all that, so a 5/4" x 6" x 16' Board would equal 10 Board Feet?
(1.25 x 6) = 7.5 x 16= 10. For 1079 Sq Ft. The Lumber Yard Estimated 148 Boards = 1480 Bd Ft
So If I am following you, to calculate linear ft from board ft
10( Bd Ft) divided by .5 ( Width of Bd) Divided by 1.25( Thk of Bd in Inches)= 16 Linear Ft
So 1480 Bd ft = 2368 Ln ft

Convert Square Ft to Linear Ft
1079 Sq Ft / .5 (Width of Bd in Ft)=2158 Ln Ft.

Is the difference a waste factor or to account for actual Board measurement?

Robert Fogt
07-18-2006, 12:06 PM
From what I understand, lumber is not exactly what it says it is. For example, a 2x4 is not 2" by 4". So possibly the boards are not exactly 6" wide.

George
08-30-2006, 04:31 PM
I have a wall, 12' wide x 7' tall. I want to put 1 x 8 cedar boards horizontally. How many linear feet is this, and how many boards would I need?

Robert Fogt
08-31-2006, 08:44 AM
Are 1 x 8 boards 8 inches wide? Or is 8 something to do with the length?

7 feet / (8 / 12) feet = 10.5 boards

10.5 * 12 feet = 126 linear feet

Thats assuming each board is 8 inches wide.

wizzard308
12-26-2007, 06:06 PM
since this is on the subject of linear feet I will post this here.
I have a dealer who has priced logs to me for a cabin at 0.70 per LF
which sounds wrong to me. He then stated that in my 70 X 45 log home shell I will have around 13,000 dollars tied up in it. But if he is using LF this price does not come out right.

@0.70 cents per LF and the logs being 8" high and 7' Thick
We are figuring 15 runs high so that would be
70 X 2 and 45 X 2 which is 230 LF (if im right)
230 X 15 runs high is 3450 LF so it would be more in the range of \$2415 if he was right. Im lost on the whole matter

he used some big long drawn out conversion of L x W bull divided by something else. I think he is working syaing its LF when it is actually BF

can anyone tell me, using 8 X 7 inch logs
house dimensions are 70 ft X 45 ft
how many BF will I have here?
(edited, question BF not LF)

JohnS
12-27-2007, 05:41 AM
Your calculation seems correct for the walls, assuming 15 logs high.

The area LxW would only be relevant to the roof, whatever it is made of. Given that the roof has a slope and overhangs somewhat, it would larger than the floor area

wizzard308
12-27-2007, 02:56 PM
Ok so it would be safe to assume he was talking in BF not LF
He quoted me around 13K for the shell so with that being said its pretty obvious he is saying LF when he actually means BF

0.70 cents per LF is somewhat cheap for cut logs I would think.

JohnS
12-27-2007, 03:24 PM
I assume the logs are still somewhat rounded, so I am not sure exactly how a board foot would be defined.

If I just take the overall dimensions, 8" x 7", the cross-section area is 56 in^2 vs 12 in^2 in the definition of a BF. So the logs would be 4.667 BF/LF, or about \$11,300.

Any rounding would reduce the actual cross-section, but who knows how they price.

gubment_cheez
12-27-2007, 05:37 PM
plus 15% tax (jeez, where do you live, so I know where to not move), or \$1,700 in labor and you have a neat 13 grand

wizzard308
12-30-2007, 01:29 PM
plus 15% tax (jeez, where do you live, so I know where to not move), or \$1,700 in labor and you have a neat 13 grand

good ol state of Tennessee
Here is the bad part most other suppliers charge like 4.50 BF for the logs
Ive had some quotes like 30 and 50K just in the freakin shell

Anyone know where you can get your logs for a better price?

Unregistered
10-29-2009, 02:43 PM
I'm doing a random width plank hardwood floor job and i have 2 3/4 inch, 5 inch, and 7 inch planks. I need to know how many linear feet of each would it take to make up 930 square feet?

JohnS
10-29-2009, 04:08 PM
I'm doing a random width plank hardwood floor job and i have 2 3/4 inch, 5 inch, and 7 inch planks. I need to know how many linear feet of each would it take to make up 930 square feet?

The 930 ft² has to be divided by the width, expressed in feet. To convert to feet, divide the width in inches by 12.

For example
930 ft² x 12 in/ft x 1/2.75 in = 4058 ft of the 2 3/4" material. You can substitute the other widths in the above.

Unregistered
12-11-2009, 09:30 AM
I have a mobilehome total sq ft is 1366, what is the linar sq ft?

Unregistered
04-29-2010, 10:58 AM
How do you convert 8,500 sf to linear ft?

Unregistered
05-03-2010, 03:07 PM
I have a 20' x 20' garden. Could someone tell me what the linear footage is?

Unregistered
06-17-2010, 03:12 PM
How do I convert 114,128 square feet to linear feet. Thanks, Teresa

Unregistered
11-28-2010, 06:39 PM
I am trying to figure out how to convert a room size in square feet into linear feet???

The room size is 14'-8" x 13'-4" and the square footage is 198. 32, so how would I calculate the linear feet???

JohnS
11-29-2010, 08:36 AM
I am trying to figure out how to convert a room size in square feet into linear feet???

The room size is 14'-8" x 13'-4" and the square footage is 198. 32, so how would I calculate the linear feet???

Usually the term is used for something like hardwood flooring, where the boards have a standard width. Express the width of the material in feet, then divide the area by width to get feet.

But, you will get different answers with 3" board, 6" boards, 8" boards, etc. If the boards have flanges, tongue and groove, etc, be sure to use installed width, not overall.

12-01-2010, 03:53 AM
So if i'm correct 12'w x 17'L ceiling which= 204sq. ft will be 204 Linear ft. If i'm using 12" boards. If i'm using 6" boards it would be 408 linear ft.

please correct me if i'm wrong

thank you

JohnS
12-01-2010, 03:56 AM
So if i'm correct 12'w x 17'L ceiling which= 204sq. ft will be 204 Linear ft. If i'm using 12" boards. If i'm using 6" boards it would be 408 linear ft.

please correct me if i'm wrong

thank you

That is correct. If the boards have tongue and groove, or any overlapping flanges, be sure to use the "as installed" width, which discounts any overlap feature.

Unregistered
02-08-2011, 11:54 AM
i have 7242 square feet of tint how muche will it be in linearfeet?

JohnS
02-08-2011, 12:59 PM
i have 7242 square feet of tint how muche will it be in linearfeet?

Divide by the width in feet

Unregistered
02-09-2011, 03:07 PM
I have a 10 by 10 foot kitchen. Trying to figure out how many linear feel that is. Say 9 foot ceilings?

Thanks!

Mrs X
02-09-2011, 06:41 PM
I have a 10 by 10 foot kitchen. Trying to figure out how many linear feel that is. Say 9 foot ceilings?

Thanks!

I'm assuming this is for painting the walls so it's 10 + 10 + 10 + 10, 40 feet with a 9' stud.

jwyatt
07-25-2011, 07:43 PM
i am doing a deck and i have figured it out to be 845 sq feet i found some ceder 5/4 x 6 planks for 99cents per linear foot and i need to know how many linear feet i would need

JohnS
07-26-2011, 03:03 AM
i am doing a deck and i have figured it out to be 845 sq feet i found some ceder 5/4 x 6 planks for 99cents per linear foot and i need to know how many linear feet i would need

6 inches = 1/2 ft, so you need 845 ft²/0.5 ft = 1690 linear feet.

This ignores any scrap loss from cutting to fit and having the remaining end too short to use. Allow another 5-10% for scrap.

Unregistered
11-16-2011, 06:50 AM
38" x 150 feet
whats the square feet coc

48" x 150 feer
whats the square feet coc

JohnS
11-16-2011, 07:26 AM
38" x 150 feet
whats the square feet coc

48" x 150 feer
whats the square feet coc

Divide the inches by 12 to get feet, then multiply by length (48"/12) x 150' = 600 ft². You can do the other the same way.

Unregistered
01-20-2012, 12:32 PM
I have 14 feet by 3 feet- so 42 square feet. How many linear feet would that be?

JohnS
01-20-2012, 04:49 PM
I have 14 feet by 3 feet- so 42 square feet. How many linear feet would that be?

It is usually used for material that comes in some standard width

For material 6 inches wide (0.5 ft), you would need 42/0.5 = 84 linear feet.

If it were 4" (1/3 ft) wide, you would need 126 linear feet.

Divide area by the width, in feet.

Unregistered
02-09-2012, 08:40 PM
How many lineal feet are 36" wide 50' long

Unregistered
12-13-2012, 06:54 AM
what would ne the lineal conversion of 5'x16'

JohnS
12-13-2012, 01:22 PM
what would ne the lineal conversion of 5'x16'

Either 5' or 16' depending on which is the length and which is the width.

16' of 5-foot wide material, or 5' of 16-foot wide material will cover it.