fbpx SANDSTONE Natural Stone Products | Unilock Boston
EN

SANDSTONE

Natural stone from Unilock is suitable for pool decks, patios, entrances, or as an overlay to a wooden deck or existing concrete. Pillar caps, steps and coping are also available. Our Indian Sandstone is aesthetically beautiful and has been selected based on its low water absorption, freeze-thaw durability and flexural strength to prevent splitting. Additionally, you can rest assured that all natural stone from Unilock is sourced from quarries that do not employ child labor. Integrity, safety and fairness are paramount.

Natural Stone 600x900x20 Autumn Harvest 
-
Natural Stone 600x900x20 Autumn Harvest 
-

SANDSTONE

Natural stone from Unilock is suitable for pool decks, patios, entrances, or as an overlay to a wooden deck or existing concrete. Pillar caps, steps and coping are also available. Our Indian Sandstone is aesthetically beautiful and has been selected based on its low water absorption, freeze-thaw durability and flexural strength to prevent splitting. Additionally, you can rest assured that all natural stone from Unilock is sourced from quarries that do not employ child labor. Integrity, safety and fairness are paramount.

Colors
Applications
Borders Accents e1632317158754
Borders and Accents
Coping
Pedestal or Overlay
Pillar e1632317122239
Pillars
Pedestrian e1632317129849
Residential & Commercial Pedestrian
Steps e1632317091683
Step
Steps
Shape and size
img
PILLAR CAP 24"
600mm x 600mm x 65mm
23 5/8" x 23 5/8" x 2 5/8"
img
PILLAR CAP 28½"
725mm x 65mm x 725mm
28 5/8" x 2 5/8" x 28 5/8"
img
12"X24"
300mm x 600mm x 22mm
11 7/8" x 23 5/8" x 0 7/8"
img
12"X24"
300mm x 600mm x 22mm
11 7/8" x 23 5/8" x 0 7/8"
img
12"X24"
300mm x 600mm x 22mm
11 7/8" x 23 5/8" x 0 7/8"
img
12"X24"
300mm x 600mm x 22mm
11 7/8" x 23 5/8" x 0 7/8"
img
18"X24"
450mm x 600mm x 22mm
17 3/4" x 23 5/8" x 0 7/8"
img
18"X24"
450mm x 600mm x 22mm
17 3/4" x 23 5/8" x 0 7/8"
img
18"X24"
450mm x 600mm x 22mm
17 3/4" x 23 5/8" x 0 7/8"
img
18"X24"
450mm x 600mm x 22mm
17 3/4" x 23 5/8" x 0 7/8"
img
24"X24"
600mm x 600mm x 22mm
23 5/8" x 23 5/8" x 0 7/8"
img
24"X24"
600mm x 600mm x 22mm
23 5/8" x 23 5/8" x 0 7/8"
img
24"X24"
600mm x 600mm x 22mm
23 5/8" x 23 5/8" x 0 7/8"
img
24"X24"
600mm x 600mm x 22mm
23 5/8" x 23 5/8" x 0 7/8"
img
24"X36"
600mm x 900mm x 22mm
23 5/8" x 35 1/2" x 0 7/8"
img
24"X36"
600mm x 900mm x 22mm
23 5/8" x 35 1/2" x 0 7/8"
img
24"X36"
600mm x 900mm x 22mm
23 5/8" x 35 1/2" x 0 7/8"
img
24"X36"
600mm x 900mm x 22mm
23 5/8" x 35 1/2" x 0 7/8"
img
STEP 48"X16"
1,200mm x 150mm x 400mm
47 1/4" x 5 7/8" x 15 3/4"
img
STEP 48"X16"
1,200mm x 150mm x 400mm
47 1/4" x 5 7/8" x 15 3/4"
img
STEP 48"X16"
1,200mm x 150mm x 400mm
47 1/4" x 5 7/8" x 15 3/4"
img
STEP 48"X16"
1,200mm x 150mm x 400mm
47 1/4" x 5 7/8" x 15 3/4"
img
STEP 72"X16"
1,830mm x 150mm x 400mm
72" x 5 7/8" x 15 3/4"
img
STEP 72"X16"
1,830mm x 150mm x 400mm
72" x 5 7/8" x 15 3/4"
img
STEP 72"X16"
1,830mm x 150mm x 400mm
72" x 5 7/8" x 15 3/4"
img
STEP 72"X16"
1,830mm x 150mm x 400mm
72" x 5 7/8" x 15 3/4"
img
COPING FULLNOSE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING FULLNOSE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING FULLNOSE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING FULLNOSE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING ROCK FACED
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING ROCK FACED
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING ROCK FACED
1,200mm x 50mm x 400mm
47 1/4" x 2" x 15 3/4"
img
COPING ROCK FACED
1,200mm x 50mm x 400mm
47 1/4" x 2" x 15 3/4"
img
COPING ROCK FACED
1,200mm x 50mm x 600mm
47 1/4" x 2" x 23 5/8"
img
COPING ROCK FACED
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING ROCK FACED
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING ROCK FACED
1,800mm x 50mm x 400mm
70 7/8" x 2" x 15 3/4"
img
COPING ROCK FACED
1,800mm x 50mm x 400mm
70 7/8" x 2" x 15 3/4"
img
COPING W /DL FULLNOSE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING W /DL FULLNOSE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING W /DL FULLNOSE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING W /DL FULLNOSE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING W/ DL ROCK FACE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING W/ DL ROCK FACE
1,200mm x 50mm x 300mm
47 1/4" x 2" x 11 7/8"
img
COPING W/ DL ROCK FACE
1,200mm x 50mm x 400mm
47 1/4" x 2" x 15 3/4"
img
COPING W/ DL ROCK FACE
1,200mm x 50mm x 400mm
47 1/4" x 2" x 15 3/4"
img
COPING W/ DL ROCK FACE
1,200mm x 50mm x 600mm
47 1/4" x 2" x 23 5/8"
img
COPING W/ DL ROCK FACE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING W/ DL ROCK FACE
1,800mm x 50mm x 300mm
70 7/8" x 2" x 11 7/8"
img
COPING W/ DL ROCK FACE
1,800mm x 50mm x 400mm
70 7/8" x 2" x 15 3/4"
img
COPING W/ DL ROCK FACE
1,800mm x 50mm x 400mm
70 7/8" x 2" x 15 3/4"

Product Gallery

Natural Stone Entrances Indian Coast 6078
Natural Stone Patios Indian Coast 5605
Natural Stone Pool Decks Indian Coast 2126
Natural Stone Pool Decks Stone Cliff Grey 5193
Natural Stone Steps Entrances Indian Coast 6054
Colors
AUTUMN HARVEST
STONE CLIFF GREY
IVORY SAND
GOLDEN SAND
Pick a color
AUTUMN HARVEST
STONE CLIFF GREY
IVORY SAND
GOLDEN SAND
Information
Information
Packaging
Downloads

NATURAL STONE - SANDSTONE

Installation Manual – For complete installation information, download the manual here.

Over Concrete Installation – Sandstone must be installed on a stable base. The best way to achieve this is to mortar the units on to a poured concrete pad - preferably a new concrete pad, although existing concrete can be used. It is recommended that you have a minimum 4” of ¾” crusher run gravel under the pad for support and drainage, (use any road base gravel in accordance with ASTM-D2940) compacted to 98% Standard Proctor Density (SPD).

Special Notes: Concrete Direct Overlay –

  1. Concrete integrity – concrete must be in good condition, and not crumbling
  2. Drainage slope – concrete below must be sloped away from all buildings and structures
  3. Base drainage - the area below the concrete must not be subject to frost movement
  4. Jointing – Mortar joint recommended

Alternative Permeable Base – Sandstone may also be installed on a permeable base.

Min. 6” – 8” of ¾“ clear open-graded stone compacted to achieve full particle lock-up and consolidation. (Clear open-graded does not compact but does consolidate slightly by rattling the particles together.)

Alternative Permeable Bedding Course – 1” thick of 1/8” clear open-graded chip stone – (ASTM No. 8 or 9) screeded over base.

Water Proofing

- When installing over a concrete pad, waterproofing the sandstone and the concrete pad is an important procedure to prevent discoloration of the sandstone. A bond/slurry coat should be brushed onto the concrete pad prior to applying the mortar bedding. Apply the same bond coat to the backs of each sandstone unit before placing.

- When installing over a permeable base, you only need to apply the slurry coat to the back of the sandstone.

Handling – Exercise caution when handling this product, as contact between its zero-bevel edges may cause damage.

Edge Restraint - Always install an edge restraint around the perimeter of any paver installation not restrained by building structures. “Spike in” edge restraints come in plastic and various metals and work well for most applications. A concrete curb or a “sub-surface concrete wedge” can also be installed to retain the edge.

Cleaners – Unilock has partnered with United Stonecare, a UK company with over 30 years experience in the field of specialized cleaner and sealer products for natural stone. View products here: https://www.unicare-products.com/.

Unit Thickness (mm)
Sq Ft per Crate
Sq Ft per Unit
Units per Crate
Lin Ft per Unit - Soldier
Lin Ft per Unit - Sailor
Lbs per Crate
Lbs per Unit
24"X36"
22
180
6
30
-
-
2,149.20
71.64
PILLAR CAP 24"
65
-
-
14
-
-
1,913.59
136.69
18"X24"
22
186
3
62
-
-
2,221
35.82
COPING W/ DL ROCK FACE
50
-
-
20
-
4
2,116.42
105.82
COPING W /DL FULLNOSE
50
-
-
12
-
6
1,905
158.75
12"X24"
22
180
2
90
-
-
2,149
23.88
24"X24"
22
160
4
40
-
-
1,910.40
47.76
COPING W/ DL ROCK FACE
50
-
-
16
-
4
2,258
141.13
COPING W/ DL ROCK FACE
50
-
-
10
-
6
2,094
209.40
STEP 72"X16"
150
-
-
4
6
-
2,513
628.25
STEP 48"X16"
150
-
-
6
4
-
2,526
421
COPING ROCK FACED
50
-
-
8
-
-
1,816.56
-
PILLAR CAP 28½"
65
-
-
12
-
-
2,513.28
209.44
COPING W/ DL ROCK FACE
50
-
-
12
-
6
1,905
158.75
COPING W/ DL ROCK FACE
50
-
-
8
-
-
1,816.56
-
COPING W /DL FULLNOSE
50
-
-
20
-
4
3,174.62
158.73
COPING ROCK FACED
50
-
-
20
-
4
2,116
105.80
COPING FULLNOSE
50
-
-
20
-
4
2,028.25
101.41
COPING ROCK FACED
50
-
-
20
-
4
2,258
112.90
COPING ROCK FACED
50
-
-
12
-
6
1,905
158.75
COPING ROCK FACED
50
-
-
10
-
6
2,094
209.40
COPING FULLNOSE
50
-
-
12
-
6
1,905
158.75

Knowledge
Center

Skip to content