BuildBlock ICF
4″-8″

BuildBlock Insulating Concrete Forms

BuildBlock ICF forms combine the standard features you’ve come to expect in a quality ICF with features that eliminate waste, reduce necessary labor and complexity, and deliver superior results for professionals and DIY alike. BuildBlock is built for speed with the least waste and many unique benefits you’ll find in no other block.

BuildBlock Insulated Concrete Forms (ICFs) are a building system that uses interlocking EPS foam blocks to create a formwork for reinforced concrete walls. The foam blocks are designed to interlock, creating a tight and secure formwork for the concrete. The formwork includes internal webs that provide a continuous insulation layer to eliminate thermal bridging and air leaks. The foam blocks come in various sizes and shapes and can be easily cut and customized on-site to meet the specific requirements of a construction project.

The reinforced concrete is poured into the formwork, creating a solid and durable wall system. The concrete core provides excellent resistance to wind, debris, and other natural disasters, making ICFs a popular choice for construction in areas prone to severe weather events.

The insulation properties of the EPS foam in the formwork provide superior energy efficiency and can reduce heating and cooling costs by up to 50%. The tight fit of the formwork also offers excellent sound insulation properties, making ICFs ideal for structures where noise is a concern.

The use of ICFs offers a range of benefits, including ease of installation, versatility in design, and environmental responsibility. The EPS foam used in the formwork is recyclable, and the long-term energy savings of ICFs can help reduce a building’s carbon footprint. Additionally, the customizable design of ICFs allows for flexibility in construction, making it possible to build a variety of structures, from simple homes to complex commercial buildings.

BuildBlock ICF Block Features

BuildBlock ICFs all have unique features such as the built-in tape measure, horizontal and vertical cut lines and more to save you time, money, and hassle on the job site.

  • Ready to Stack. No on-site assembly required; start installing right off the truck.
  • Fully Reversible. All forms are fully reversible; no top, bottom, left or right. Longer corner design provides an automatic offset for each course.
  • Industry Standard Size. Industry-standard 16-inch (406.4mm) high forms produce less waste when cutting around doors and windows.
  • Tight Interlocking Blocks. Blocks easily stack and securely lock into place resulting in greater strength over the competition. No foam or clips required between courses.
  • 2.5-inch (63.5mm) Foam Panels. Allows easy accommodation of electrical and plumbing installation in the foam.
  • High-density Plastic Webs on 6-inch centers. Greater strength, more value.
  • Rebar Support eliminates most steel tying.
  • Easy mechanical chases for plumbing and electrical.
  • Open Web Design for efficient concrete flow and half-height block support.
  • Extra Heavy-duty Attachment Points (495lbs.) Located every 8-inches vertically, and 6-inches horizontally.
  • Molded-in Tape Measure and Horizontal Cut Lines.
  • 1-inch Repeating Cut Pattern on Block Connection.
  • Lowest waste of any ICF on the market today.
  • Attachment Point Markings
  • No special half-height blocks required.

BuildBlock Insulating Concrete Forms:
the strongest and most energy-efficient building material available today.
ICFs are used to build homes, schools, churches, and other commercial buildings. Choosing ICFs for your next construction project means saving money every month and feeling secure in your home.

Product Specifications

Straight Block Forms

Core Width
Width
Length Ext-Int
Return Ext-Int
Area
Concrete Volume
4 in / 101.6 mm
9 in / 228.6 mm
48 in / 1219.2 mm
N/A
5.33 ft2 / .4951 m2
.065844 yd3 / .050341 m3
6 in / 152.4 mm
11 in / 279.4 mm
48 in / 1219.2 mm
N/A
5.33 ft2 / .4951 m2
.098765 yd3 / .075511 m3
8 in / 203.2 mm
13 in / 330.2 mm
48 in / 1219.2 mm
N/A
5.33 ft2 / .4951 m2
.131687 yd3 / .100682 m3

*10″ & 12″ and larger core sizes are available using the BuildLock Knockdown block product for thicker walls and special needs such as pilasters. All BuildBlock products use the same interlock pattern and will integrate together.

Core Width
Width
Length Ext-Int
Return Ext-Int
Area
Concrete Volume
4 In / 101.6 mm
9 In / 228.6 mm
31 in - 22 in / 787.4 mm – 558.8 mm
19 in – 10 in / 482.6 mm– 254 mm
5.56 ft2 / .5165 m2
.054574 yd3 / .041725 m3
6 in / 152.4 mm
11 in / 279.4 mm
33 in – 22 in / 787.4 mm – 558.8 mm
21 in – 10 in / 533.4 mm – 254 mm
6.00 ft2 / .5574 m2
.086528 yd3 / .066155 m3
8 in / 203.2 mm
13 in / 330.2 mm
35 in – 22 in / 787.4 mm – 558.8 mm
23 in – 10 in / 584.2 mm – 254 mm
6.44 ft2 / .5983 m2
.121517 yd3 / .092906 m3

*10″ & 12″ and larger core sizes are available using the BuildLock Knockdown block product for thicker walls and special needs such as pilasters. All BuildBlock products use the same interlock pattern and will integrate together.

90° Corner Block Forms

45° Corner Block Forms

builblock bb645 corner form
Core Width
Width
Length Ext-Int
Return Ext-Int
Area
Concrete Volume
4 in / 101.6 mm
9 in / 228.6 mm
28 in – 24.272 in / 711.2 mm – 558.8 mm
16 in – 12.272 in / 406.4 mm – 311.7 mm
4.89 ft2 / .4542 m2
.054985 yd3 / .042039 m3
6 in / 152.4 mm
11 in / 279.4 mm
28 in – 23.444 in / 71.12 mm – 59.55 mm
16 in – 11.444 in / 406.4 mm – 290.7 mm
4.89 ft2 / .4542 m2
.080841 yd3 / .061807 m3
8 in / 203.2 mm
8 in / 203.2 mm
28 in – 22.615 in / 711.2 mm – 574.4 mm
16 in – 10.615 in / 406.4 mm – 269.6 mm
4.89 ft2 / .4542 m2
.105425 yd3 / .08060 m3

*All BuildBlock products use the same interlock pattern and will integrate together.

Core Width
Width
Length Ext-Int
Return Ext-Int
Area
Concrete Volume
6 in / 152.4 mm
N/A
48 in / 1219.2 mm
N/A
4 ft2 / .3716 m2
.134140 yd3 / .102557 m3
8 in / 203.2 mm
N/A
48 in / 1219.2 mm
N/A
4 ft2 / .3716 m2
.167074 yd3 / .127737 m3

*All BuildBlock products use the same interlock pattern and will integrate together.

BrickLedge Block Forms

brickledge bb6bl form

Double Taper Top Forms

buildblock double taper top form
Core Width
Width
Length Ext-Int
Return Ext-Int
Area
Concrete Volume
6 in / 152.4 mm
N/A
48 in / 1219.2 mm
N/A
5.33 ft2 / .4951 m2
.130128 yd3 / .099489 m3
8 in / 203.2 mm
N/A
48 in / 1219.2 mm
N/A
5.33 ft2 / .4951 m2
.163050 yd3 / .124660 m3

*All BuildBlock products use the same interlock pattern and will integrate together.

BuildBlock ICF Resources

BuildBlock ICF Swimming Pool Construction Manual
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BuildBlock Pocket Install Guide
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BuildBlock Technical & Installation Manual
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BuildBlock Technical Brochure
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BuildDeck Product Installation Manual
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BuildShield Termite and Firestop Manual
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GlobalBlock Installation Manual
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