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Need help with wood beam layout in kitchen ceiling

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Forum topic by Blackzombie posted 11-15-2017 05:33 PM 1311 views 0 times favorited 11 replies Add to Favorites Watch
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Blackzombie

2 posts in 222 days


11-15-2017 05:33 PM

Hello. First time poster so take it easy on me. Lol. I am in need of assistance with laying out the correct spacing for a wood beam project we are doing. The room dimensions are 12×22’. The white pine beam dimensions are 3”x 9”. We need to layout the spacing equally for a total of five beams. Can someone please assist with the exact measurements on how to place the five beams equally in the ceiling? Thanks ahead of time for your help


11 replies so far

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chrisstef

17429 posts in 3035 days


#1 posted 11-15-2017 06:53 PM

Youve got 22’ long @ 12” per foot = 264”
Subtract the width of each beam (9”) multiplied by # of beams (5) = 45”
264” – 45” = 219”
219” divided by 6 bays = 36.5” per bay.

So from the wall to the edge of the beam measure 36.5”. Install beam. From opposite edge of that beam measure 36.5”. Thats the edge of your next beam. Rinse and repeat. Make sure youre hitting ceiling joists with whatever fasteners youre using.

wall – 36.5” – 9” – 36.5” – 9” – 36.5” – 9” – 36.5” – 9” – 36.5” – 9” – 36.5” – wall

-- Its not a crack, its a casting imperfection.

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Hammerthumb

2853 posts in 2004 days


#2 posted 11-15-2017 07:26 PM

Takes an estimator to figure that out, Right Stef?

-- Paul, Las Vegas

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jbay

2349 posts in 928 days


#3 posted 11-15-2017 07:40 PM

Couple of pertinent questions though.

Are the beams layed flat as chrisstef calculated or is the 3” the width.?
Also are you starting with the 1st beam against the wall?

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chrisstef

17429 posts in 3035 days


#4 posted 11-15-2017 08:33 PM

Lol Hammer. Yup. So it should be taken with a grain of salt.

Jbay brings up good points. I definitely estimated the layout as well as the direction of the existing ceiling joists.

-- Its not a crack, its a casting imperfection.

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Blackzombie

2 posts in 222 days


#5 posted 11-16-2017 03:14 AM

Thank you for taking the time to give a very good reply. There won’t be a beam against the wall. And the beams would be installed with the 3” side against the ceiling and not flat of the 9”. I really appreciate the info thanks again

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HerbC

1764 posts in 2888 days


#6 posted 11-16-2017 06:09 AM

Are the actual dimensions of the beams 3” X 9” or are they somewhat smaller (ie 2.5” X 8.5”) ??? Most construction grade lumber is smaller than the “nominal” dimensions and it would affect the solution of this question…

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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Nowater

16 posts in 1969 days


#7 posted 11-16-2017 02:25 PM

For the 22’ direction, start the first bean 26.4 inches on center from the wall, and layout the other beams 52.8 inches on center from that. Measure the remaining space to check your work.

The beams should be laid out on center lines to account for any small differences in the beam thickness.

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tomsteve

790 posts in 1248 days


#8 posted 11-16-2017 04:16 PM

the way i read it, youre having 5 beams spaced out evenly with none against the all,which= 6 total spaces in between. the beans are going the length of the 22’ wall.
a 22’ run is 264”, divided by 6 spaces=44”. make a mark @ 44”,then hold back 1 1/2”. in other words, make a mark 1 1/2” to one side of that mark. that will be the edge of your beam. 44” spacing, 3rd one should be dead center of the ceiling. because 264/2=132. 44 times 3= 132
make sure marks are on same side of the centerline for each layout and measure from same wall on both ends of room.

if youre going along the 12’ wall, 12’= 144” which 144”divided by 6 spaces=24”. mark and 24” and hold back 1 1/2”
3rd one will be dead center because 144/2=72” and 24 times 3=72

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jbay

2349 posts in 928 days


#9 posted 11-16-2017 05:09 PM


For the 22 direction, start the first bean 26.4 inches on center from the wall, and layout the other beams 52.8 inches on center from that. Measure the remaining space to check your work.

The beams should be laid out on center lines to account for any small differences in the beam thickness.

- Nowater

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jbay

2349 posts in 928 days


#10 posted 11-16-2017 05:12 PM



the way i read it, youre having 5 beams spaced out evenly with none against the all,which= 6 total spaces in between. the beans are going the length of the 22 wall.
a 22 run is 264”, divided by 6 spaces=44”. make a mark @ 44”,then hold back 1 1/2”. in other words, make a mark 1 1/2” to one side of that mark. that will be the edge of your beam. 44” spacing, 3rd one should be dead center of the ceiling. because 264/2=132. 44 times 3= 132
make sure marks are on same side of the centerline for each layout and measure from same wall on both ends of room.

if youre going along the 12 wall, 12 = 144” which 144”divided by 6 spaces=24”. mark and 24” and hold back 1 1/2”
3rd one will be dead center because 144/2=72” and 24 times 3=72

- tomsteve

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jbay

2349 posts in 928 days


#11 posted 11-16-2017 05:13 PM

Correct (doing it they way chrisstef mentioned)

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