RETAINING BLOCKS
Block Library R-28T
R-28HT
28" (710mm) TOP
Face Texture: Block Weight: Block Volume: Center of Gravity:
Cobble / Limestone 1230 lb (557 kg) 8.57 ft3 (0.243 m3) 14.9" (378mm) 40
Kingstone / Ledgestone 1160 lb (530 kg) 8.07 ft3 (0.229 m3) 14.2" (362mm) (10
28" (710mm) HALF TOP
Face Texture: Block Weight: Block Volume: Center of Gravity:
Cobble / Limestone 570 lb (260 kg) 4.01 ft3 (0.113 m3) 15.3" (389 mm) 16
16
(11
5)
57
)
22
5 8(
2
1 71 8(
22
)±
28" (710mm) MIDDLE Cobble / Limestone 1610 lb (730 kg) 11.28 ft3 (0.319 m3) 13.9" (354 mm)
SHEAR KNOBS @ 23 (584) OC, TYP.
R-28HM
Kingstone / Ledgestone 1540 lb (700 kg) 10.78 ft3 (0.305 m3) 13.4" (340 mm) 40
13 16
57
22
(57
9) FACE TEXTURE VARIES
FACE TEXTURE VARIES
Face Texture: Block Weight: Block Volume: Center of Gravity:
13 (330)
18 (457)
13 (330)
18 (457)
1 8
72
72
)
22
5 8(
57
28
5)
1) (71
Cobble / Limestone 1740 lb (790 kg) 12.19 ft3 (0.345 m3) 14.0" (355 mm) 40
Kingstone / Ledgestone 1670 lb (760 kg) 11.70 ft3 (0.331 m3) 13.5" (343 mm) (10
±
Kingstone / Ledgestone 710 lb (320 kg) 4.98 ft3 (0.141 m3) 13.8" (350 mm)
(42
7)
18 (457)
13 16
13 16
57
22
(57
5 8(
( 28
9) FACE TEXTURE VARIES
R-28HB
28" (710mm) BOTTOM
Face Texture: Block Weight: Block Volume: Center of Gravity:
22
±
FACE TEXTURE VARIES
1)
18 (457)
(11
(71
28
16
18 (457) 1 8
5)
Cobble / Limestone 750 lb (340 kg) 5.23 ft3 (0.148 m3) 14.3" (364 mm)
(10
18 (457)
46
5 8(
28" (710mm) HALF MIDDLE
Face Texture: Block Weight: Block Volume: Center of Gravity:
16 )
R-28B
(42
7)
46
R-28M
13 16
)
Kingstone / Ledgestone 540 lb (240 kg) 3.76 ft3 (0.106 m3) 14.7" (373 mm)
5)
71
1)
±
28" (710mm) HALF BOTTOM
Face Texture: Block Weight: Block Volume: Center of Gravity:
Cobble / Limestone 810 lb (370 kg) 5.66 ft3 (0.160 m3) 14.3" (364 mm) 16
16
)
13 16
Kingstone / Ledgestone 770 lb (350 kg) 5.41 ft3 (0.153 m3) 13.8" (352 mm)
(42
46
1 8
(11
)
5)
57
72
22
5 8(
) 11
±
7
( 28
FACE TEXTURE VARIES
1. Units for dimensions are inches (mm), typical unless noted otherwise. 2. Block production varies with each licensed Redi-Rock manufacturer. Confirm availability before Specifying or Ordering. 3. Center of Gravity is measured from the back of block. 4. Actual block volumes and weights may vary.
18 (457)
18 (457)
18 (457)
18 (457)
7)
22
13 16
57
(57
9) FACE TEXTURE VARIES
22
5 8(
( 28
5)
71
1)
±
5. Weights are based upon a concrete density of 143 lb/ft3 (2291kg/m3). 6. Half blocks contain a fork slot on only one side of the block. 7. Interface Shear knobs are typically 10" (254mm) diameter by 4" (102mm) tall. Smaller knob diameters are available.