PRODUCT SPECIFICATIONS AND INSTALLATION GUIDE 1
TABLE OF CONTENTS PAVERS 3 CIRCLE PAC KITS 9 PAVER PATIO AND SIDEWALK INSTALLATION 11 PATIO BLOCKS 17 RETAINING WALLS 21 CLIFTON & DENVER INSTALLATION INSTRUCTIONS 22 CORNER INSTALLATION FOR CLIFTON & DENVERS 30 BUILDING STAIRS WITH CLIFTON & DENVERS 33 BUILDING TIERED WALLS 35 GEOGRID INSTALLATION 36 STEP BLOCKS & PILLAR CAPS 46 EDGERS 47 LANDSCAPING DESIGN TOOLS We are dedicated to providing the tools you’ll need to make designing your landscaping easy! Start with your imagination
PAVERS $ DESCRIPTION TxWxD PRODUCT Patio Paver 1-1/2" x 3-7/8" x 7-7/8" WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 3-1/2 lbs 4.72 Red/Black 179-3028 $ PRODUCT PATIO PAVER DESCRIPTION TxWxD WEIGHT PER BLOCK Holland Paver 2-3/8" x 3-7/8" x 7-7/8" ADA Holland Paver 2-3/8" x 3-7/8" x 7-7/8" HOLLAND PAVER BLOCKS PER SQUARE FT COLORS 6 lbs 4.72 Autumn Blend 179-3069 Charcoal 179-3058 Red/Black 179-3099 Red 179-3060 (not available at all locations) Sienna 179-3075 Tan 179-3124 6 lbs 4.
RIVERFRONT PAVER PRODUCT $ DESCRIPTION TxWxD (L) Riverfront Paver 2-3/8" x 15-5/8" x 23-1/2" (M) Riverfront Paver 2-3/8" x 15-5/8" x 15-5/8" (S) Riverfront Paver Running Bond 2-3/8" x 7-3/4" x 15-5/8" Herringbone WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 72 lbs. 0.39 Tan/Charcoal 179-2912 47 lbs. 0.59 Tan/Brown 179-2913 23 lbs. 1.19 Gray/Charcoal 179-2914 Basketweave Casino Blend RIVERFRONT PAVER PATTERN IDEAS HERRINGBONE RUNNING BOND Sq. Ft. Per Pattern: 5.
$ DESCRIPTION TxWxD PRODUCT RIVERFRONT BOARDWALK PAVER WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 12 lbs 2.37 Charcoal 179-3047 Gray 179-3048 Sienna 179-3045 Riverfront Boardwalk Paver 2-3/8" x 3-7/8" x 15-5/8" RIVERFRONT BOARDWALK PAVER PATTERN IDEAS HERRINGBONE Sq. Ft. Per Pattern: 0.8 Blocks Per Pattern: 2 STACK BOND Sq. Ft. Per Pattern: 2.0 Blocks Per Pattern: 5 RUNNING BOND Sq. Ft. Per Pattern: 0.8 Blocks Per Pattern: 2 DOUBLE STACK BOND Sq. Ft. Per Pattern: 2.
TURFSTONE PAVER PRODUCT $ DESCRIPTION TxWxD Turfstone Paver 3-1/2" x 23-1/2" x 15-3/4" FLAGSTONE PAVER PRODUCT DESCRIPTION TxWxD Flagstone Paver 2-1/2" x 13-5/8" x 11" 6 PAVERS WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 67 lbs 0.39 Gray 179-1963 WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 18 lbs 1.
$ DESCRIPTION TxWxD PRODUCT (L) Courtland Paver 2-3/8" x 5-1/2" x 11" (M) Courtland Paver 2-3/8" x 5-1/2" x 8-1/4" (S) Courtland Paver 2-3/8" x 5-1/2" x 5-1/2" COURTLAND PAVER WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 11 lbs. 2.38 Autumn Blend 179-3228 9 lbs. 3.17 Autumn Blend 179-3229 6 lbs. 4.76 Autumn Blend 179-3230 COURTLAND PAVER PATTERN IDEAS Kingston Running Bond 3 to 1 Courtland Running Bond Sq. Ft. Per Pattern: 3.3 Blocks Per Pattern: 4 M, 2 S Sq. Ft. Per Pattern: 1.
TUMBLED BELGIAN PAVER PRODUCT $ DESCRIPTION TxWxD (XL) Belgian Paver 2-1/4" x 8-7/8" x 8-7/8" WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 14-1/2 lbs 1.83 Autumn Blend 179-2774 Quarry Gray 179-2778 Sienna 179-2770 Tan 179-2782 10 lbs 2.75 Autumn Blend 179-2775 Quarry Gray 179-2779 Sienna 179-2771 Tan 179-2783 6-1/2 lbs 4.14 Autumn Blend 179-2776 Quarry Gray 179-2780 Sienna 179-2772 Tan 179-2784 3-1/4 lbs 8.
CIRCLE PAC KITS $ PRODUCT WEIGHT PER BLOCK SQUARE FT WEIGHT PER PALLET COLORS Tumbled Circle Kit 6.5 lbs (varies) Kit Covers 28 sq. ft. 1050 lbs (varies) Autumn Blend 179-2893 Quarry Gray 179-2891 Sienna 179-2890 Tan 179-2892 Tumbled Circle Kit 6.5 lbs (varies) Kit Covers 70 sq. ft. 2100 lbs (varies) Autumn Blend 179-2885 Quarry Gray 179-2889 Sienna 179-2886 Tan 179-2883 DESCRIPTION 6' 6" Diameter 9' 6" Diameter DIAGRAM FOR 6.
DIAGRAM FOR 9.5' CIRCLE Required Amounts: Center E =1 qty F = 8 qty G = 199 qty A = 74 qty B = 60 qty BLOCK QUANTITIES PER RING: Center Ring 1 Ring 2 Ring 3 Ring 4 Ring 5 Ring 6 Ring 7 Ring 8 Ring 9 10 E = 1 qty F = 8 qty G = 16 qty G = 24 qty G = 15 qty G = 18 qty G = 23 qty G = 25 qty G = 30 qty G = 48 qty FOR TUMBLED BELGIAN CIRCLES LARGER THAN 9.
PAVER PATIO & SIDEWALK INSTALLATION $ Remember these helpful tips: -Patios must have a slight slope (1" for every 4' to 8') for proper drainage. If you don’t provide enough slope, rainwater will settle into low spots, eventually softening and washing out the sand and subbase materials beneath. A flat or poorly sloped patio could even direct water into your basement. Too much slope and it will feel like things are rolling off your patio.
PAVER PATIO & SIDEWALK INSTALLATION Use your level and a straight 2x4 to double-check the lay of the land for proper slope. Then spray-paint a line 8" outside the outline of your patio to act as a line of excavation. Be sure to call to locate and mark out your utility lines, this must be done before beginning excavation. Start by stripping away the sod at this point (Image 3), so grass doesn’t get in the way of the guide strings you’ll soon be setting up.
PAVER PATIO & SIDEWALK INSTALLATION Make a grid work of stakes and guide strings to indicate the finished height and slope of your patio, then excavate 5" PLUS the thickness of your pavers, below these lines. This will provide room for a 4" subbase, the 1" leveling sand base, and the pavers themselves (Image 5). If the area is hilly, you’ll need to go back and forth between excavating, leveling and setting strings to get things right. Soil conditions vary greatly across the country.
PAVER PATIO & SIDEWALK INSTALLATION The Essential Edging Edging is an absolute must for maintaining the integrity of your patio. Without solid edging, your sand base and pavers will separate and drift apart from the forces of rain, frost and foot traffic. Plastic edging is available at your local Menards store. Secure the edging into the compacted subbase with spikes (Image 8). 8 Install the edging on the tamped subbase using 8-12" spikes.
PAVER PATIO & SIDEWALK INSTALLATION Pave Away You should now be standing before a flat, slightly sloped expanse of sand. Take down the guide strings you used to determine height and slope and put up new stakes and strings to mark the lines for the pattern of you pavers (Image 10). 10 11 Lay paver stones in desired pattern. If the desired pattern requires cutting, the pavers can be cut with a circular saw with a masonry blade. Mark pavers that run "wild" into the border area.
PAVER PATIO & SIDEWALK INSTALLATION When all your pavers are cut and in place, vibrate the entire patio, starting at the outer edge and working inward in a circular motion (Image 13). The vibrator will lock the pavers into the sand and help even up the surface. Don’t let the vibrator sit in one place too long, or pavers could settle unevenly or crack. You can put plywood down and vibrate on top of that to help distribute the weight of the machine.
PATIO BLOCKS $ PRODUCT DESCRIPTION TxWxD WEIGHT PER BLOCK BLOCKS PER SQ FT COLORS 12" Brickface Patio Block (small) 22 lbs 1.07 Red 179-1321 Tan 179-1350 16" Brickface Patio Block (large) 40 lbs 0.56 Gray 179-1401 Red 179-1430 Tan 179-1459 40 lbs 0.56 Quarry Gray 179-1283 Red/Black 179-1281 40 lbs 0.56 Autumn Blend 179-1290 Quarry Gray 179-1289 Sienna 179-1288 75 lbs 0.27 Gray 179-1951 17 lbs. 1.
PATIO BLOCKS DESCRIPTION TxWxD PRODUCT Wetcast Flagstone Patio Block 2" x 12" x 20" Average size Available in 4 interlocking shapes, each sold separately. WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 20 lbs Average weight .71 Average square footage Tan 179-4137 20 lbs - Charcoal 179-1874 Wetcast Yorkstone Patio Block (round) 1-5/8" x 14" round Wetcast Yorkstone Patio Block (S)1-5/8" x 8" x 16" 17 lbs 1.12 Charcoal 179-1880 Sienna 179-1879 (M) 1-5/8" x 16" x 16" 32 lbs 0.
PATIO BLOCKS PRODUCT DESCRIPTION TxWxD WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS Cobblestone Patio Block (square) 40 lbs 0.56 Suede 179-1210 Cobblestone Patio Block (quarter turn) 40 lbs 0.56 Suede 179-1239 2" x 16" x 16" 2" x 16" x 16" COBBLESTONE PATIO BLOCK PATTERN IDEAS WAVE SQUARE CIRCLE SEMI-CIRCLE OFFSET SEMI-CIRCLE FAN Blocks may need to be cut to fit at the edges of patio.
PATIO BLOCKS DESCRIPTION TxWxD PRODUCT WEIGHT PER BLOCK BLOCKS PER SQUARE FT COLORS 16 lbs 1.24 Gray 179-1101 Red 179-1127 Tan 179-1103 30 lbs 0.78 Cedar 179-1860 Classic Patio Block 1-5/8"T × 15-1/4" x 7-5/8" Wetcast Wood Plank 2" x 23-3/4" x 7-3/4" CLASSIC PATIO BLOCK PATTERN IDEAS Running Bond HERRINGBONE Sq. Ft. Per Pattern: 1.6 Blocks Per Pattern: 2 STACK BOND RUNNING BOND BASKET WEAVE Sq. Ft. Per Pattern: 1.6 Blocks Per Pattern: 2 Sq. Ft. Per Pattern: 6.
RETAINING WALLS $ PRODUCT DESCRIPTION HxWxD Crestone LT 3-1/2" x 8" x 7" Crestone Straight 3-1/2" x 11-1/2" x 7" Crestone Beveled 3-1/2" x 11-1/2" x 7" Lakewood 5-1/2" x 11-1/2" x 8" Lakewood XL 5-1/2" x 18" x 8" WEIGHT PER BLOCK RECOMMENDED WALL HEIGHT BLOCKS PER SQUARE FT (by block face) COLORS 13 lbs Up to 21" (6 layers high) gravity wall 5.14 Quarry Gray 179-3591 Sienna 179-3592 Tan 179-3590 17 lbs Up to 21" (6 layers high) gravity wall 3.
CLIFTON & DENVER PRODUCT DESCRIPTION HxWxD Denver Beveled 6" x 17" x 12" Denver Straight 6" x 18" x 12" Clifton Beveled 8" x 17" x 12" Clifton Straight 8" x 18" x 12" Clifton Corner 8" x 18" x 9" WEIGHT PER BLOCK RECOMMENDED WALL HEIGHT BLOCKS PER SQUARE FT (by block face) COLORS 54 lbs Up to 36" (6 layers high) gravity wall 1.43 Quarry Gray 179-3930 Sienna 179-3953 Tan 179-3951 58 lbs Up to 36" (6 layers high) gravity wall 1.
GRAVITY WALL DESIGN ASSUMPTIONS The design methodology for conventional gravity walls is based upon the following: 1. There is no slope behind the wall. 2. Surcharge loads applied at the top of the wall are limited to foot traffic where the applied forces will be between 0-50 PSF. 3. There is good surface and subsurface drainage to prevent hydrostatic pressures at the back of the wall and the reinforced soil zone. 4.
Step 1 - Base Course Preparation Beginning at a point of the wall’s lowest elevation, excavate a trench down the length of the wall that will accommodate at least 6" of compacted base material. We suggest burying 10% of your wall height below grade with a minimum of 6" even on short walls. Step the trench up or down with respect to adjacent grade. The width of the trench for both the Denver and Clifton Walls should be a minimum of 24".
Soils are divided into three groups: Granular - sands and gravel consisting of grains down to .002" - Best for strength and support Clay - very fine particles, > 50% passing #200 sieve -May cause settlement Please note: If you are unsure of your soil condition, consult a soils engineer.
Step 5 - Successive Course Installation Prior to adding successive courses, the top of each block needs to be clean and free of foreign material. Center the block and pull it forward until the rear lip abuts the two blocks below it. Place core and drainage fill as in Step 4. Place the backfill material behind the drainage rock in maximum 3" to 6" lifts based on the rating of your compaction equipment and compact to 95% Standard Proctor Density. Repeat this process for each successive course.
Step 6.3 - Stepping a Wall/Another Option Another option for walls that step-up is to cut to fit a 6" wide section of a Step/Cap for the Denver or an 8" wide section of a Step/Cap for the Clifton and lay the Step/Cap vertically to finish the end. To ensure the vertical cap maintains a straight line from the face to the back of the block, a 2" chip is installed near the back of the block (see illustration below).
SPECIAL APPLICATIONS AND WALL DETAILS Convex/Outside Curves and Concave/Inside Curves & Corners Step 1 - Base Course Preparation for a Convex Curve Place the blocks on the leveling pad so there are no gaps between them. Consider using PVC Flex Pipes to create smooth and accurate curves. When possible, start building a curve from the center and work left and right through the curve.
RADIUS OF CONVEX CURVES ON SUCCESSIVE COURSES Top Course Radius Center Stake Base Course Radius Convex Curve Chart 1 2 3 4 5 6 7 Block Rows Radius (Min.) 1 24-1/2" 2 26-3/32" 3 27-11/16" 4 29-9/32" 5 29-29/32" 6 32-1/2" 7 34-3/32" 8 35-11/16" 8 CONCAVE/INSIDE CURVE Step 1 - Base Course Preparation for a Concave Curve Place the blocks on the leveling pad so there are no gaps between them. Consider using PVC Flex Pipes to create smooth and accurate curves.
Step 2 - Successive Course Installation for a Concave Curve Build each course of units by starting at the same place and the same bond as the last course. Keep in mind, for Concave Curves, the taller the wall the smaller the first course needs to be. The radius of each additional course will be slightly larger than the lower course.
DENVER BEVELED OUTSIDE CORNER CLIFTON OUTSIDE CORNER Step 1 - Base Course Preparation with Corner Block Using Corner Blocks for outside corners, begin an outside corner from the corner of the wall and install the blocks from the corner out when possible. Step 2 - Successive Course Installation Stagger the Corner Block as each successive course is installed so it is on the opposite side of the wall corner. This corner unit should be pushed back 3/4" to achieve proper setback.
DENVER OR CLIFTON INSIDE CORNERS To build inside corners with the Denver or Clifton, corner units are not needed. Step 1 - Base Course Preparation Begin an inside corner from the corner of the wall and install the blocks from the corner out, when possible. Place the second unit at a right angle and centered to the first base unit. Only half of a whole block installed on the corner will be exposed. Also, always core fill each unit to ensure proper interlock.
BUILDING STAIRS WITH DENVER OR CLIFTON RISERS (cont.) Before excavation can begin, the rise and run of the stair treads must be determined and codes must be met. Stairs can be built by stacking two Clifton units and a Step/Cap on top of each other for more stability. A more economical option is stacking one Clifton and a Step/Cap. Stairs can be built in front of the wall or into the wall with radius turns or outside 90º corners (see illustrations below).
BUILDING STAIRS WITH DENVER OR CLIFTON RISERS (cont.
TIERED WALLS Tiered Denver and Clifton walls offer a visually pleasing and less obtrusive alternative to conventional wall construction. On sites that provide sufficient land area for this application, these walls are typically designed with green space between the tiers.
GEOGRID REINFORCED WALLS All installation instructions are the same as for gravity retaining walls except for the addition of geogrid. Geosynthetic reinforcement is an engineered product that is typically comprised of polypropylene, polyester or other high tensile material. Used in conjunction with segmental retaining wall blocks, it helps stabilize the soil mass behind a wall. Depending on the wall design, the length and the number of grid layers will vary.
BASIC GEOGRID REINFORCEMENT Step 1 - Preparation for Grid The area behind the wall on the grid layer needs to be level with the top of the block (after compaction) and compacted to 95% of the Standard Proctor density (ASTM D698). Step 2 - Grid Placement Place the grid as close to the face of the wall without exposing it after successive placement of blocks. Ensure the grid is placed with the strength direction perpendicular to the wall.
BASIC GEOGRID REINFORCEMENT - CONVEX CURVE Step 1 - Grid Placement Cut geogrid to required lengths and place the grid as close to the face of the wall without exposing it when following the contour of the curve. Place the next course of SRW block, taking care that the grid sits flat and is secured between the units. Each geogrid length should be laid perpendicular to the wall face and pulled tight to remove any slack. The geogrid should never overlap on top of the Clifton or Denver Units.
BASIC GEOGRID REINFORCEMENT - CONCAVE CURVE Step 1 - Grid Placement Cut geogrid to required lengths and place the grid as close to the face of the wall without exposing it when following the contour of the curve. Place the next course of SRW block, taking care that the grid sits flat and is secured between the units. Each geogrid length should be laid perpendicular to the wall face and pulled tight to remove any slack. The geogrid should never overlap on top of the Clifton or Denver Units.
GEOGRID - OUTSIDE 90° CORNER Step 1 - Grid Placement On an outside 90° corner, it is important that grid layers do not overlap at the corner. Place the first grid layer at the correct elevation and length. Each geogrid length should be perpendicular to the wall face. Lay the first geogrid corner section perpendicular to one side of the corner. Lay the second geogrid section perpendicular to the other side of the corner but not overlapping the first geogrid section.
ESTIMATES FOR DRAIN PIPE, ADHESIVE AND GEOGRID Drain Pipe The length of the wall will in most cases determine the amount of drainpipe needed. Check the plan for exact specifications and locations of the drainpipe. Denver Clifton # of Units Concrete Adhesive Use one 10.5-ounce tube of adhesive for every 14 ft. of wall length where Step/Caps and Corners are installed. Use one 29-ounce tube of adhesive for every 39 ft. of wall length where Step/ Caps and Corners are installed. ø=34 deg.
MATERIAL ESTIMATES FOR THE DENVER, CLIFTON AND STEP/CAPS Denver SRW - Ordering Blocks Based on Length and Height. Beveled-face: Length in ft. x height in ft. multiplied by 1.43 = number of blocks. A wall 100 ft. long and 5 ft. high = 500 sq. ft. x 1.43 = 715 Beveled Denver Units for a 500 sq. ft. wall. Straight-face: Length in ft. x height in ft. multiplied by 1.33 = number of blocks. A wall 100 ft. long and 5 ft. high = 500 sq. ft. x 1.33 = 665 Straight Denver Units for a 500 sq. ft. wall.
AGGREGATE ESTIMATES FOR THE BASE COURSE, CORE FILL AND DRAINAGE ZONE Before calculating, keep in mind the following. 1. The base course should be a minimum of 24 inches wide and 6 inches deep. 2. Always core fill the Denver, Clifton and Corner Units. 3. In the Drainage Zone directly behind the blocks, install a 6 to 12 inch layer of aggregate. In the calculations below we used a 12-inch drainage zone. A. Base Course Formula Length of the wall x the height of the wall x the width of back fill = cubic ft.
TUMBLED BELGIAN FREESTANDING WALL PRODUCT DESCRIPTION HxWxD $ WEIGHT PER BLOCK Tumbled Belgian Freestanding (large) 27-3/4 lbs 3-1/2" x 14" x 7" BLOCKS PER SQUARE FT (by block face) COLORS 2.94 Autumn Blend 179-3640 Quarry Gray 179-3650 Sienna 179-3648 Tan 179-3653 Tumbled Belgian Freestanding (medium) 17 lbs 4.76 Autumn Blend 179-3724 Quarry Gray 179-3721 Sienna 179-3722 Tan 179-3723 Tumbled Belgian Freestanding (small) 3 lbs 11.
TUMBLED CATALINA WALL $ DESCRIPTION HxWxD PRODUCT WEIGHT PER BLOCK BLOCKS PER SQUARE FT (by block face) COLORS 55 lbs 1.69 Autumn Blend 179-5064 Quarry Gray 179-5068 Sienna 179-5065 Tan 179-5062(special order) 1.92 Autumn Blend 179-5034 Quarry Gray 179-5030 Sienna 179-5032 Tan 179-5031 (special order) 1.
STEP BLOCKS, RETAINING WALL CAPS, PILLAR CAPS PRODUCT DESCRIPTION HxWxD WEIGHT PER BLOCK BLOCKS PER LINEAR FT Step Block 56 lbs (Cap) 0.75 (Step) 32" Step 3-1/2" x 16" x 12-1/2" Quarry Gray 179-3935 Sienna 179-3938 Tan 179-3939 12" Cap 13 lbs 1.14 XL Cap 53 lbs 0.8 Quarry Gray 179-5681 Sienna 179-5680 Tan 179-5674 2" x 12" x 24" 40 lbs Cap Covers 1.9 sq. ft. Gray 179-5816 2" x 24" x 24" 85 lbs Cap Covers 4 sq. ft. Gray 179-5800 2" x 27" x 27" 120 lbs Cap Covers 5.06 sq. ft.
EDGERS $ PRODUCT DESCRIPTION HxWxL Tumbled Belgian Edger 3-1/2" x 12" x 4" Interloc Edger 3-3/8" x 11-3/4" x 3-3/8" Cobble Edger 3-7/16" x 11-13/16" x 3-3/4" Crescent Edger 2-3/8" x 5-3/4" x 4-3/8" Scalloped Edger (Straight) 6" x 24" x 2" Scalloped Edger (Curved) 6" x 24" x 2" WEIGHT PER BLOCK BLOCKS PER LINEAR FT COLORS 13-1/4 lbs 1 Autumn Blend 179-2681 Quarry Gray 179-2683 Sienna 179-2687 Tan 179-2682 10 lbs 1.02 Gray 179-2480 Red 179-2498 Red/Black 179-2485 Tan 179-2495 12 lbs 1.
INSTALLING EDGERS Step 1 - Stake out & remove sod Begin by staking out the project. For curved sections use a garden hose to lay out the edging line. The depth of the trench is dependent upon how far above grade you want your edger units to appear. Step 2 - Clear areas of debris Prepare trench by removing roots and rocks. Smooth and place 1" of paver base in the bottom of the trench. Step 3 - Lay & level edgers Place edgers end to end in the base.
Paver Installation Steps Paver Base / Step 1 Leveling Sand / Step 2 Paver Locking Sand / Step 3 Install pavers over a firm, stable base using one of the four installation diagrams shown below. If installing Paver Locking Sand on a non-drainage bed system, there must be a slope to avoid water pooling on the pavers. Paver Locking sand is the 3rd part of a 3-step standard installation system when installing pavers or patio blocks.
MIDWEST MANUFACTURING CONCRETE BLOCK OUR GUARANTEE Midwest Manufacturing is dedicated to offering the highest quality concrete products, to all of our guests. All of our interlocking concrete pavers, concrete bricks, retaining walls, and masonry block, meet or exceed ASTM C-936, ASTM C1634-09/C55-09, ASTM C-1372, and ASTM C-90 specifications, respectively. Midwest Manufacturing guarantees its concrete products against manufacturing defects for as long as you own your home.
