# Replacing 6 X 6 Timbers with Concrete...

Discussion in 'Bricks, Masonry and Concrete' started by NorPlan, Jun 20, 2014.

1. Jun 20, 2014

### NorPlan

#### Junior Member

Joined:
Mar 21, 2014
Messages:
109
10
:help: We have a number of Walkways that were Laid using 6 X 6 Timbers as both Border and Support holding the Interlocking Stone in place.. Problem now is the timbers have rotted..Solution now is to replace with Cement..

:hide: Having said all that, I'm drawing a blank figuring out the formula on how many Bags of Cement I'd need...I have a total of 4 strips for a total of 230"L X 5" H X 5" W .... I plan on using masonite strips to form a solid wall on the weak side ie: Grass & Sand..... Cheers. Thanks...

2. Jun 20, 2014

### bud16415

Joined:
Feb 5, 2013
Messages:
4,620
1,576
19x.42x.42=3.35 cubic feet, 80# bag is .66 cubic feet 3.35/.66= 5.08 bags

3. Jun 20, 2014

### nealtw

#### Contractor retired

Joined:
Nov 4, 2010
Messages:
23,810
3,072
5/12 x 5/12 x 230= cubic feet the cheepest 1x4 or 6" shiplap is what I would use

Last edited: Jun 20, 2014
4. Jun 20, 2014

### bud16415

Joined:
Feb 5, 2013
Messages:
4,620
1,576

5/12 x 5/12 x 230=39.9 cubic feet

5/12 x 5/12 x 230/12=3.35 cubic feet

5. Jun 20, 2014

### nealtw

#### Contractor retired

Joined:
Nov 4, 2010
Messages:
23,810
3,072
Give your head a shake and start over, then tell us why you devided the ft to inches.
And now that I read it again, I see it is inches. oops

Last edited: Jun 20, 2014
6. Jun 21, 2014

### kok328

#### Well-Known Member

Joined:
Nov 20, 2007
Messages:
2,747
245
For 5"x5"x230", you will need .12 yds. of concrete as follows:

40# bags = 11
60# bags = 8
80# bags = 6

The calculator has never let me down so far.

7. Jun 21, 2014

### nealtw

#### Contractor retired

Joined:
Nov 4, 2010
Messages:
23,810
3,072
show off

8. Jun 21, 2014

### bud16415

Joined:
Feb 5, 2013
Messages:
4,620
1,576
Shaking my head hurts. To many stones rolling around.

I once had a maint guy come in and ask me to figure his driveway. His wife had ordered the mix for the next day after taking many measurements of his forms. She came up with 76 yards needed. I came up with 9 yards. Normally that wouldn't have been a problem but she was the head of the math dept at PSU and written several calculus books. He was in a pickle. Fortunately the guy at the plant questioned it and sent someone out to make sure and found her math error.

Just a smudge over 5 bags I say. Buy 6 to be sure and then let it harden up in the corner of the garage. That's what I always do.

Sent from my iPhone using Home Repair

9. Jun 21, 2014

### bud16415

Joined:
Feb 5, 2013
Messages:
4,620
1,576
Slightly off topic, but if it were mine I would fix I length of rebar in the center of your forms. 5x5 is not much cross section setting above the frost line. The bar will keep it together when it cracks.

With bigger pours I form a pad some place useful with one side loose for any extra and then close it in when I see what I have left over.

Sent from my iPhone using Home Repair

10. Jun 21, 2014

### NorPlan

#### Junior Member

Joined:
Mar 21, 2014
Messages:
109
10
:hide: :agree: @ just under \$4.00 a bag....I'll go with that

11. Jun 22, 2014

### NorPlan

#### Junior Member

Joined:
Mar 21, 2014
Messages:
109
10
@ bud16415...Smudge over 5 bags was the Correct Amount...If we want to be technical, 2 spade fulls out of the sixth bag..:clap:

12. Jun 23, 2014

### bud16415

Joined:
Feb 5, 2013
Messages:
4,620
1,576
I will add that to my list of things to remember. Two spades equal one smudge. By the way a smudge equals a smidge that really isn't a word in iPhone land. Smidgen is though.

Sent from my iPhone using Home Repair

13. Jun 23, 2014

### NorPlan

#### Junior Member

Joined:
Mar 21, 2014
Messages:
109
10
:clap: Speaking of a Smudge More and definitely way more than a Smidgen...On the subject of pouring cement..We have a couple strips from a previous job maybe 2 inches deep...The Wife would like to level off and smooth out the ripples so as to prevent people from tripping....Can we safely add cement to the existing cement surface or would I have lay down some kinda additive to make the new cement adhere..:help:

Title
Replies Views
Last Message

Replies:
10
Views:
685

Replies:
3
Views:
51

Replies:
0
Views:
14

Replies:
25
Views:
1,096

Replies:
5
Views:
84