RETAINING BLOCKS
Block Library R-28HT
28" (710mm) TOP
3 16 (
11 72 )
22
18 (457)
8 (
5) 57 ± 1) (71 28
5 8(
22 1
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) (1 0
8 (
11 72 )
22
Cobble / Limestone 1740 lb (790 kg) 12.19 ft3 (0.345 m3) 14.0" (355 mm)
5) 57 ± 1) ( 71 8 2
8 (
11 72 )
22
Kingstone / Ledgestone 710 lb (320 kg) 4.98 ft3 (0.141 m3) 13.8" (350 mm)
42 7
)
22
5) 57 ± 1) (71 8 2
5 8(
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)
Kingstone / Ledgestone 770 lb (350 kg) 5.41 ft3 (0.153 m3) 13.8" (352 mm)
16 1
16 )
18 (457)
46 1
3 16
(57 9) FACE TEXTURE VARIES
R-28HB
Kingstone / Ledgestone 1670 lb (760 kg) 11.70 ft3 (0.331 m3) 13.5" (343 mm) (1 0
22 1
5 8(
3 16 (
18 (457)
40
Cobble / Limestone 750 lb (340 kg) 5.23 ft3 (0.148 m3) 14.3" (364 mm)
3 16 (
28" (710mm) BOTTOM
Face Texture: Block Weight: Block Volume: Center of Gravity:
5) 57 ± 1) (71 28
16 1
FACE TEXTURE VARIES
R-28B
)
5 8(
16 )
18 (457)
46 1
42 7
28" (710mm) HALF MIDDLE
Face Texture: Block Weight: Block Volume: Center of Gravity:
18 (457)
40
22
18 (457)
Face Texture: Block Weight: Block Volume: Center of Gravity:
3 16
(57 9) FACE TEXTURE VARIES
FACE TEXTURE VARIES
R-28M
Kingstone / Ledgestone 540 lb (240 kg) 3.76 ft3 (0.106 m3) 14.7" (373 mm)
16 1
)
13 (330)
46 1
Cobble / Limestone 570 lb (260 kg) 4.01 ft3 (0.113 m3) 15.3" (389 mm)
13 (330)
16
28" (710mm) HALF TOP
Face Texture: Block Weight: Block Volume: Center of Gravity:
18 (457)
(10
18 (457)
40
Kingstone / Ledgestone 1160 lb (530 kg) 8.07 ft3 (0.229 m3) 14.2" (362mm)
5) 57 ± 1) (71 8 2
5 8(
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.
22 1
42 7
)
18 (457)
Cobble / Limestone 1230 lb (557 kg) 8.57 ft3 (0.243 m3) 14.9" (378mm)
18 (457)
R-28T
Face Texture: Block Weight: Block Volume: Center of Gravity:
3 16
(57 9) FACE TEXTURE VARIES
22
5) 57 ± 1) (71 8 2
5 8(
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.