Skip to content

FoxBlocks® Insulated Concrete Form - Door / Window Buck - 4" Wide

SKU FOX-BUCK4
Save 22% Save 22%
Original price $23.71
Original price $23.71 - Original price $23.71
Original price $23.71
Current price $18.44
$18.44 - $18.44
Current price $18.44

Lowest Price Guaranteed! - Click HERE To see our Price Match Conditions

ONLY SOLD IN MULTIPLES 10 PCS

Fox Buck is a fully integrated, continuous insulation window and door buck for residential and commercial applications. The 1″ x 1″ notches create a dual barrier against drafts or moisture penetration. When installed properly, the concrete barrier protection is continuous around the entire opening. These barriers also anchor the Fox Buck to the wall with enough strength for weather events. The buck is 2″ thick for easy measurements and measures 48″ long to match the height of the three stacked Fox Blocks. The buck features a 1- 1/2″ wide “fastening zone” for door and window attachments that runs the full height of the buck every 8″ on center. Notches ensure proper alignment between the buck and the wall form. On the inside, dual full-length 1″ x 1″ grooves create a solid concrete barrier against drafts and moisture. Circles are marked at 16″ centers for sill cutouts and vibrator access. The expanded 2015 Fox Buck product line now includes the 4″, 6″, 8″, 10″, and 12″ sizes.

Use this text to share information about your product.

Dimensions & Measurements

Core Width

Item Number

Block Type

Total

Total

Outside dimensions

Outside dimensions

Concrete

Concrete

Bundle Quantity

Actual Bundle Size

Weight

Width

Height

Length

Surface Area

Length

Surface Area

Volume yd

Volume M

Length

Width

Height

Bundle

Piece

4"

FOX-S400

Straight Block

9.25

16

48

5.33

48

5.33

0.066

0.05

12

38

49

49

84

7

FOX-S400HB

Straight 1/2 Block

9.25

8

48

2.67

48

2.67

0.033

0.025

24

38

49

49

84

7

FOX-EC490

90º Corner Block (38 x 22)

9.25

16

60

6.67

41.5

4.61

0.07

0.0535

12

46

47

49

95

8

FOX-EC490HB

90º Corner 1/2 Block

9.25

8

60

3.34

41.5

2.31

0.348

0.027

24

46

47

49

95

8

FOX-EC445

45º Corner Block (34 x 18)

9.25

16

52

5.78

44

3.57

0.066

0.05

9

40

50

49

58

6.4

6"

FOX-S600

Straight Block

11.25

16

48

5.33

48

5.33

0.099

0.0757

12

45.5

49

49

90

7.5

FOX-S600HB

Straight 1/2 Block

11.25

8

48

2.67

48

2.67

0.0494

0.0378

24

45.5

49

49

90

3.75

FOX-EC690

90º Corner Block (40 x 24)

11.25

16

64

7.11

41.5

4.6

0.105

0.08

12

53

49

49

102

8.47

FOX-EC690HB

90º Corner 1/2 Block

11.25

8

64

3.56

41.5

2.31

0.0543

0.0415

24

53

49

49

102

8.47

FOX-C645

45º Corner Block (26 x 18)

11.25

16

44

4.89

34.875

3.85

0.082

0.063

9

40

49

49

58

6.4

FOX-TB600

T-Block Short

11.25

16

44

4.89

4.375

n/a

0.105

0.08

6 (3+3)

40.25

43.25

49

56

9.4

T-Block Long

11.25

16

44

4.89

12.375

n/a

0.121

0.0925

56

9.4

FOX-BL600

Corbel Ledge

11.25

16

48

5.33

n/a

n/a

0.129

0.099

9

45.25

45.5

49

80

8.8

FOX-TT600

Taper Top

11.25

16

48

5.33

n/a

n/a

0.111

0.085

12

45.25

49

49

56

7.3

Fox-RB60_

Radius

11.25

16

16

1.77

n/a

n/a

0.033

0.025

27

39

49

49

68

2.5

FOX-Stirp 6

Stirups for corbel block

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

40

13

11

9

25

0.65

8"

FOX-S800

Straight Block

13.25

16

48

5.33

48

5.33

0.132

0.101

12

54.5

49

49

90

7.5

FOX-S800HB

Straight 1/2 Block

13.25

8

48

2.67

48

2.67

0.065

0.05

24

54.5

49

49

90

7.5

FOX-EC890

90º Corner Block (42 x 26)

13.25

16

68

7.56

41.5

4.6

0.153

0.117

6

41

44

49

60

9.83

FOX-EC890HB

90º Corner 1/2 Block

13.25

8

68

3.78

41.5

2.3

0.076

0.058

12

41

44

49

60

9.83

FOX-C845

45º Corner Block (28 x 20)

13.25

16

48

5.33

37

4.11

0.117

0.089

9

53

47

49

58

6.4

FOX-TB800

T-Block Short

13.25

16

44

4.89

4.75

n/a

0.141

0.108

6 (3+3)

40.25

43.25

49

56

9.4

T-Block Long

13.25

16

44

4.89

8.75

n/a

0.152

0.116

56

9.4

FOX-BL800

Corbel Ledge

13.25

16

48

5.33

n/a

n/a

0.162

0.124

9

53.25

49.5

49

80

8.9

FOX-TT800

Taper Top

13.25

16

48

5.33

n/a

n/a

0.144

0.11

12

54.5

49.25

49

87

7.3

FOX-S800CB

Curb Block - Straight

13.25

16

48

5.33

n/a

n/a

0.132

0.101

12

54.5

49

49

91.2

7.6

FOX-EC890CB

Curb Block - 90º Corner

13.25

16

68

7.56

41.5

4.6

0.145

0.111

6

41

44

49

60

9.92

FOX-Stirp 8

Stirups for corbel block

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

40

13.5

11.5

9.5

28

0.7

Our Shipping Partners

Accepted Payment Methods